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<a href="#harfbuzz-hb-paint.description" class="shortcut">Description</a></span>
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<a name="harfbuzz-hb-paint"></a><div class="titlepage"></div>
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<td valign="top">
<h2><span class="refentrytitle"><a name="harfbuzz-hb-paint.top_of_page"></a>hb-paint</span></h2>
<p>hb-paint — Glyph painting</p>
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<div class="refsect1">
<a name="harfbuzz-hb-paint.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_proto_type">
<col class="functions_proto_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="returnvalue">hb_paint_funcs_t</span></a> *
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-create" title="hb_paint_funcs_create ()">hb_paint_funcs_create</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="returnvalue">hb_paint_funcs_t</span></a> *
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-get-empty" title="hb_paint_funcs_get_empty ()">hb_paint_funcs_get_empty</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="returnvalue">hb_paint_funcs_t</span></a> *
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-reference" title="hb_paint_funcs_reference ()">hb_paint_funcs_reference</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-destroy" title="hb_paint_funcs_destroy ()">hb_paint_funcs_destroy</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-user-data" title="hb_paint_funcs_set_user_data ()">hb_paint_funcs_set_user_data</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span> *
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-get-user-data" title="hb_paint_funcs_get_user_data ()">hb_paint_funcs_get_user_data</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-make-immutable" title="hb_paint_funcs_make_immutable ()">hb_paint_funcs_make_immutable</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-is-immutable" title="hb_paint_funcs_is_immutable ()">hb_paint_funcs_is_immutable</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-transform-func-t" title="hb_paint_push_transform_func_t ()">*hb_paint_push_transform_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-push-transform-func" title="hb_paint_funcs_set_push_transform_func ()">hb_paint_funcs_set_push_transform_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-pop-transform-func-t" title="hb_paint_pop_transform_func_t ()">*hb_paint_pop_transform_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-pop-transform-func" title="hb_paint_funcs_set_pop_transform_func ()">hb_paint_funcs_set_pop_transform_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-color-glyph-func-t" title="hb_paint_color_glyph_func_t ()">*hb_paint_color_glyph_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-color-glyph-func" title="hb_paint_funcs_set_color_glyph_func ()">hb_paint_funcs_set_color_glyph_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-clip-glyph-func-t" title="hb_paint_push_clip_glyph_func_t ()">*hb_paint_push_clip_glyph_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-push-clip-glyph-func" title="hb_paint_funcs_set_push_clip_glyph_func ()">hb_paint_funcs_set_push_clip_glyph_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-clip-rectangle-func-t" title="hb_paint_push_clip_rectangle_func_t ()">*hb_paint_push_clip_rectangle_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-push-clip-rectangle-func" title="hb_paint_funcs_set_push_clip_rectangle_func ()">hb_paint_funcs_set_push_clip_rectangle_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-pop-clip-func-t" title="hb_paint_pop_clip_func_t ()">*hb_paint_pop_clip_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-pop-clip-func" title="hb_paint_funcs_set_pop_clip_func ()">hb_paint_funcs_set_pop_clip_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-color-func-t" title="hb_paint_color_func_t ()">*hb_paint_color_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-color-func" title="hb_paint_funcs_set_color_func ()">hb_paint_funcs_set_color_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-image-func-t" title="hb_paint_image_func_t ()">*hb_paint_image_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-image-func" title="hb_paint_funcs_set_image_func ()">hb_paint_funcs_set_image_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">unsigned <span class="returnvalue">int</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-get-color-stops-func-t" title="hb_color_line_get_color_stops_func_t ()">*hb_color_line_get_color_stops_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">unsigned <span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-color-line-get-color-stops" title="hb_color_line_get_color_stops ()">hb_color_line_get_color_stops</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-extend-t" title="enum hb_paint_extend_t"><span class="returnvalue">hb_paint_extend_t</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-get-extend-func-t" title="hb_color_line_get_extend_func_t ()">*hb_color_line_get_extend_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-extend-t" title="enum hb_paint_extend_t"><span class="returnvalue">hb_paint_extend_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-color-line-get-extend" title="hb_color_line_get_extend ()">hb_color_line_get_extend</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-linear-gradient-func-t" title="hb_paint_linear_gradient_func_t ()">*hb_paint_linear_gradient_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-linear-gradient-func" title="hb_paint_funcs_set_linear_gradient_func ()">hb_paint_funcs_set_linear_gradient_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-radial-gradient-func-t" title="hb_paint_radial_gradient_func_t ()">*hb_paint_radial_gradient_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-radial-gradient-func" title="hb_paint_funcs_set_radial_gradient_func ()">hb_paint_funcs_set_radial_gradient_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-sweep-gradient-func-t" title="hb_paint_sweep_gradient_func_t ()">*hb_paint_sweep_gradient_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-sweep-gradient-func" title="hb_paint_funcs_set_sweep_gradient_func ()">hb_paint_funcs_set_sweep_gradient_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-group-func-t" title="hb_paint_push_group_func_t ()">*hb_paint_push_group_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-push-group-func" title="hb_paint_funcs_set_push_group_func ()">hb_paint_funcs_set_push_group_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-pop-group-func-t" title="hb_paint_pop_group_func_t ()">*hb_paint_pop_group_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-pop-group-func" title="hb_paint_funcs_set_pop_group_func ()">hb_paint_funcs_set_pop_group_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-paint.html#hb-paint-custom-palette-color-func-t" title="hb_paint_custom_palette_color_func_t ()">*hb_paint_custom_palette_color_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-custom-palette-color-func" title="hb_paint_funcs_set_custom_palette_color_func ()">hb_paint_funcs_set_custom_palette_color_func</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-transform" title="hb_paint_push_transform ()">hb_paint_push_transform</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-pop-transform" title="hb_paint_pop_transform ()">hb_paint_pop_transform</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-color-glyph" title="hb_paint_color_glyph ()">hb_paint_color_glyph</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-clip-glyph" title="hb_paint_push_clip_glyph ()">hb_paint_push_clip_glyph</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-clip-rectangle" title="hb_paint_push_clip_rectangle ()">hb_paint_push_clip_rectangle</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-pop-clip" title="hb_paint_pop_clip ()">hb_paint_pop_clip</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-color" title="hb_paint_color ()">hb_paint_color</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-image" title="hb_paint_image ()">hb_paint_image</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-linear-gradient" title="hb_paint_linear_gradient ()">hb_paint_linear_gradient</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-radial-gradient" title="hb_paint_radial_gradient ()">hb_paint_radial_gradient</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-sweep-gradient" title="hb_paint_sweep_gradient ()">hb_paint_sweep_gradient</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-group" title="hb_paint_push_group ()">hb_paint_push_group</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-pop-group" title="hb_paint_pop_group ()">hb_paint_pop_group</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
</td>
<td class="function_name">
<a class="link" href="harfbuzz-hb-paint.html#hb-paint-custom-palette-color" title="hb_paint_custom_palette_color ()">hb_paint_custom_palette_color</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="harfbuzz-hb-paint.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="other_proto_type">
<col class="other_proto_name">
</colgroup>
<tbody>
<tr>
<td class="typedef_keyword">typedef</td>
<td class="function_name"><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t">hb_paint_funcs_t</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="harfbuzz-hb-paint.html#HB-PAINT-IMAGE-FORMAT-PNG:CAPS" title="HB_PAINT_IMAGE_FORMAT_PNG">HB_PAINT_IMAGE_FORMAT_PNG</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="harfbuzz-hb-paint.html#HB-PAINT-IMAGE-FORMAT-SVG:CAPS" title="HB_PAINT_IMAGE_FORMAT_SVG">HB_PAINT_IMAGE_FORMAT_SVG</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="harfbuzz-hb-paint.html#HB-PAINT-IMAGE-FORMAT-BGRA:CAPS" title="HB_PAINT_IMAGE_FORMAT_BGRA">HB_PAINT_IMAGE_FORMAT_BGRA</a></td>
</tr>
<tr>
<td class="typedef_keyword">typedef</td>
<td class="function_name"><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t">hb_color_line_t</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="harfbuzz-hb-paint.html#hb-color-stop-t" title="hb_color_stop_t">hb_color_stop_t</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="harfbuzz-hb-paint.html#hb-paint-extend-t" title="enum hb_paint_extend_t">hb_paint_extend_t</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="harfbuzz-hb-paint.html#hb-paint-composite-mode-t" title="enum hb_paint_composite_mode_t">hb_paint_composite_mode_t</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="harfbuzz-hb-paint.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <hb.h>
</pre>
</div>
<div class="refsect1">
<a name="harfbuzz-hb-paint.description"></a><h2>Description</h2>
<p>Functions for painting glyphs.</p>
<p>The main purpose of these functions is to paint (extract) color glyph layers
from the COLRv1 table, but the API works for drawing ordinary outlines and
images as well.</p>
<p>The <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> struct can be used with <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a>.</p>
</div>
<div class="refsect1">
<a name="harfbuzz-hb-paint.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="hb-paint-funcs-create"></a><h3>hb_paint_funcs_create ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="returnvalue">hb_paint_funcs_t</span></a> *
hb_paint_funcs_create (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Creates a new <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> structure of paint functions.</p>
<p>The initial reference count of 1 should be released with <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-destroy" title="hb_paint_funcs_destroy ()"><code class="function">hb_paint_funcs_destroy()</code></a>
when you are done using the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a>. This function never returns
<code class="literal">NULL</code>. If memory cannot be allocated, a special singleton <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a>
object will be returned.</p>
<p>Returns value: (transfer full): the paint-functions structure</p>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-get-empty"></a><h3>hb_paint_funcs_get_empty ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="returnvalue">hb_paint_funcs_t</span></a> *
hb_paint_funcs_get_empty (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Fetches the singleton empty paint-functions structure.</p>
<div class="refsect3">
<a name="hb-paint-funcs-get-empty.returns"></a><h4>Returns</h4>
<p>The empty paint-functions structure. </p>
<p><span class="annotation">[<acronym title="The caller owns the data, and is responsible for free it."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-reference"></a><h3>hb_paint_funcs_reference ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="returnvalue">hb_paint_funcs_t</span></a> *
hb_paint_funcs_reference (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>);</pre>
<p>Increases the reference count on a paint-functions structure.</p>
<p>This prevents <em class="parameter"><code>funcs</code></em>
from being destroyed until a matching
call to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-destroy" title="hb_paint_funcs_destroy ()"><code class="function">hb_paint_funcs_destroy()</code></a> is made.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="hb-paint-funcs-reference.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>The paint-functions structure</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-paint-funcs-reference.returns"></a><h4>Returns</h4>
<p> The paint-functions structure</p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-destroy"></a><h3>hb_paint_funcs_destroy ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_destroy (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>);</pre>
<p>Decreases the reference count on a paint-functions structure.</p>
<p>When the reference count reaches zero, the structure
is destroyed, freeing all memory.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="hb-paint-funcs-destroy.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>The paint-functions structure</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-user-data"></a><h3>hb_paint_funcs_set_user_data ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
hb_paint_funcs_set_user_data (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-user-data-key-t" title="hb_user_data_key_t"><span class="type">hb_user_data_key_t</span></a> *key</code></em>,
<em class="parameter"><code><span class="type">void</span> *data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="type">hb_bool_t</span></a> replace</code></em>);</pre>
<p>Attaches a user-data key/data pair to the specified paint-functions structure.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="hb-paint-funcs-set-user-data.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>The paint-functions structure</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>key</p></td>
<td class="parameter_description"><p>The user-data key</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>A pointer to the user data</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>A callback to call when <em class="parameter"><code>data</code></em>
is not needed anymore. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>replace</p></td>
<td class="parameter_description"><p>Whether to replace an existing data with the same key</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-paint-funcs-set-user-data.returns"></a><h4>Returns</h4>
<p> <code class="literal">true</code> if success, <code class="literal">false</code> otherwise</p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-get-user-data"></a><h3>hb_paint_funcs_get_user_data ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> *
hb_paint_funcs_get_user_data (<em class="parameter"><code>const <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-user-data-key-t" title="hb_user_data_key_t"><span class="type">hb_user_data_key_t</span></a> *key</code></em>);</pre>
<p>Fetches the user-data associated with the specified key,
attached to the specified paint-functions structure.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="hb-paint-funcs-get-user-data.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>The paint-functions structure</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>key</p></td>
<td class="parameter_description"><p>The user-data key to query</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-paint-funcs-get-user-data.returns"></a><h4>Returns</h4>
<p>A pointer to the user data. </p>
<p><span class="annotation">[<acronym title="The data is owned by the callee, which is responsible of freeing it."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-make-immutable"></a><h3>hb_paint_funcs_make_immutable ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_make_immutable (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>);</pre>
<p>Makes a paint-functions structure immutable.</p>
<p>After this call, all attempts to set one of the callbacks
on <em class="parameter"><code>funcs</code></em>
will fail.</p>
<div class="refsect3">
<a name="hb-paint-funcs-make-immutable.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>The paint-functions structure</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-is-immutable"></a><h3>hb_paint_funcs_is_immutable ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
hb_paint_funcs_is_immutable (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>);</pre>
<p>Tests whether a paint-functions structure is immutable.</p>
<div class="refsect3">
<a name="hb-paint-funcs-is-immutable.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>The paint-functions structure</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-paint-funcs-is-immutable.returns"></a><h4>Returns</h4>
<p> <code class="literal">true</code> if <em class="parameter"><code>funcs</code></em>
is immutable, <code class="literal">false</code> otherwise</p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-push-transform-func-t"></a><h3>hb_paint_push_transform_func_t ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*hb_paint_push_transform_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><span class="type">float</span> xx</code></em>,
<em class="parameter"><code><span class="type">float</span> yx</code></em>,
<em class="parameter"><code><span class="type">float</span> xy</code></em>,
<em class="parameter"><code><span class="type">float</span> yy</code></em>,
<em class="parameter"><code><span class="type">float</span> dx</code></em>,
<em class="parameter"><code><span class="type">float</span> dy</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to apply
a transform to subsequent paint calls.</p>
<p>This transform is applied after the current transform,
and remains in effect until a matching call to
the <span class="type">hb_paint_funcs_pop_transform_func_t</span> vfunc.</p>
<div class="refsect3">
<a name="hb-paint-push-transform-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>xx</p></td>
<td class="parameter_description"><p>xx component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>yx</p></td>
<td class="parameter_description"><p>yx component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>xy</p></td>
<td class="parameter_description"><p>xy component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>yy</p></td>
<td class="parameter_description"><p>yy component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dx</p></td>
<td class="parameter_description"><p>dx component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dy</p></td>
<td class="parameter_description"><p>dy component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-push-transform-func" title="hb_paint_funcs_set_push_transform_func ()"><code class="function">hb_paint_funcs_set_push_transform_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-push-transform-func"></a><h3>hb_paint_funcs_set_push_transform_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_push_transform_func
(<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-transform-func-t" title="hb_paint_push_transform_func_t ()"><span class="type">hb_paint_push_transform_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the push-transform callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-push-transform-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The push-transform callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-pop-transform-func-t"></a><h3>hb_paint_pop_transform_func_t ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*hb_paint_pop_transform_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to undo
the effect of a prior call to the <span class="type">hb_paint_funcs_push_transform_func_t</span>
vfunc.</p>
<div class="refsect3">
<a name="hb-paint-pop-transform-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-pop-transform-func" title="hb_paint_funcs_set_pop_transform_func ()"><code class="function">hb_paint_funcs_set_pop_transform_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-pop-transform-func"></a><h3>hb_paint_funcs_set_pop_transform_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_pop_transform_func (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-pop-transform-func-t" title="hb_paint_pop_transform_func_t ()"><span class="type">hb_paint_pop_transform_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the pop-transform callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-pop-transform-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The pop-transform callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-color-glyph-func-t"></a><h3>hb_paint_color_glyph_func_t ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
<span class="c_punctuation">(</span>*hb_paint_color_glyph_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t" title="hb_font_t"><span class="type">hb_font_t</span></a> *font</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to render a color glyph by glyph index.</p>
<div class="refsect3">
<a name="hb-paint-color-glyph-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>glyph</p></td>
<td class="parameter_description"><p>the glyph ID</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>font</p></td>
<td class="parameter_description"><p>the font</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-color-glyph-func" title="hb_paint_funcs_set_color_glyph_func ()"><code class="function">hb_paint_funcs_set_color_glyph_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-paint-color-glyph-func-t.returns"></a><h4>Returns</h4>
<p> <code class="literal">true</code> if the glyph was painted, <code class="literal">false</code> otherwise.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-8-2-0.html#api-index-8.2.0">8.2.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-color-glyph-func"></a><h3>hb_paint_funcs_set_color_glyph_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_color_glyph_func (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-color-glyph-func-t" title="hb_paint_color_glyph_func_t ()"><span class="type">hb_paint_color_glyph_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the color-glyph callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-color-glyph-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The color-glyph callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-8-2-0.html#api-index-8.2.0">8.2.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-push-clip-glyph-func-t"></a><h3>hb_paint_push_clip_glyph_func_t ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*hb_paint_push_clip_glyph_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t" title="hb_font_t"><span class="type">hb_font_t</span></a> *font</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to clip
subsequent paint calls to the outline of a glyph.</p>
<p>The coordinates of the glyph outline are interpreted according
to the current transform.</p>
<p>This clip is applied in addition to the current clip,
and remains in effect until a matching call to
the <span class="type">hb_paint_funcs_pop_clip_func_t</span> vfunc.</p>
<div class="refsect3">
<a name="hb-paint-push-clip-glyph-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>glyph</p></td>
<td class="parameter_description"><p>the glyph ID</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>font</p></td>
<td class="parameter_description"><p>the font</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-push-clip-glyph-func" title="hb_paint_funcs_set_push_clip_glyph_func ()"><code class="function">hb_paint_funcs_set_push_clip_glyph_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-push-clip-glyph-func"></a><h3>hb_paint_funcs_set_push_clip_glyph_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_push_clip_glyph_func
(<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-clip-glyph-func-t" title="hb_paint_push_clip_glyph_func_t ()"><span class="type">hb_paint_push_clip_glyph_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the push-clip-glyph callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-push-clip-glyph-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The push-clip-glyph callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-push-clip-rectangle-func-t"></a><h3>hb_paint_push_clip_rectangle_func_t ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*hb_paint_push_clip_rectangle_func_t<span class="c_punctuation">)</span>
(<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><span class="type">float</span> xmin</code></em>,
<em class="parameter"><code><span class="type">float</span> ymin</code></em>,
<em class="parameter"><code><span class="type">float</span> xmax</code></em>,
<em class="parameter"><code><span class="type">float</span> ymax</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to clip
subsequent paint calls to a rectangle.</p>
<p>The coordinates of the rectangle are interpreted according
to the current transform.</p>
<p>This clip is applied in addition to the current clip,
and remains in effect until a matching call to
the <span class="type">hb_paint_funcs_pop_clip_func_t</span> vfunc.</p>
<div class="refsect3">
<a name="hb-paint-push-clip-rectangle-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>xmin</p></td>
<td class="parameter_description"><p>min X for the rectangle</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>ymin</p></td>
<td class="parameter_description"><p>min Y for the rectangle</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>xmax</p></td>
<td class="parameter_description"><p>max X for the rectangle</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>ymax</p></td>
<td class="parameter_description"><p>max Y for the rectangle</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-push-clip-rectangle-func" title="hb_paint_funcs_set_push_clip_rectangle_func ()"><code class="function">hb_paint_funcs_set_push_clip_rectangle_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-push-clip-rectangle-func"></a><h3>hb_paint_funcs_set_push_clip_rectangle_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_push_clip_rectangle_func
(<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-clip-rectangle-func-t" title="hb_paint_push_clip_rectangle_func_t ()"><span class="type">hb_paint_push_clip_rectangle_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the push-clip-rect callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-push-clip-rectangle-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The push-clip-rectangle callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-pop-clip-func-t"></a><h3>hb_paint_pop_clip_func_t ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*hb_paint_pop_clip_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to undo
the effect of a prior call to the <span class="type">hb_paint_funcs_push_clip_glyph_func_t</span>
or <span class="type">hb_paint_funcs_push_clip_rectangle_func_t</span> vfuncs.</p>
<div class="refsect3">
<a name="hb-paint-pop-clip-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-pop-clip-func" title="hb_paint_funcs_set_pop_clip_func ()"><code class="function">hb_paint_funcs_set_pop_clip_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-pop-clip-func"></a><h3>hb_paint_funcs_set_pop_clip_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_pop_clip_func (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-pop-clip-func-t" title="hb_paint_pop_clip_func_t ()"><span class="type">hb_paint_pop_clip_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the pop-clip callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-pop-clip-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The pop-clip callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-color-func-t"></a><h3>hb_paint_color_func_t ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*hb_paint_color_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="type">hb_bool_t</span></a> is_foreground</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-color.html#hb-color-t" title="hb_color_t"><span class="type">hb_color_t</span></a> color</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to paint a
color everywhere within the current clip.</p>
<div class="refsect3">
<a name="hb-paint-color-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>is_foreground</p></td>
<td class="parameter_description"><p>whether the color is the foreground</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color</p></td>
<td class="parameter_description"><p>The color to use, unpremultiplied</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-color-func" title="hb_paint_funcs_set_color_func ()"><code class="function">hb_paint_funcs_set_color_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-color-func"></a><h3>hb_paint_funcs_set_color_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_color_func (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-color-func-t" title="hb_paint_color_func_t ()"><span class="type">hb_paint_color_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the paint-color callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-color-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The paint-color callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-image-func-t"></a><h3>hb_paint_image_func_t ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
<span class="c_punctuation">(</span>*hb_paint_image_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-blob.html#hb-blob-t" title="hb_blob_t"><span class="type">hb_blob_t</span></a> *image</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> width</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> height</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> format</code></em>,
<em class="parameter"><code><span class="type">float</span> slant</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-glyph-extents-t" title="hb_glyph_extents_t"><span class="type">hb_glyph_extents_t</span></a> *extents</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to paint a glyph image.</p>
<p>This method is called for glyphs with image blobs in the CBDT,
sbix or SVG tables. The <em class="parameter"><code>format</code></em>
identifies the kind of data that
is contained in <em class="parameter"><code>image</code></em>
. Possible values include <a class="link" href="harfbuzz-hb-paint.html#HB-PAINT-IMAGE-FORMAT-PNG:CAPS" title="HB_PAINT_IMAGE_FORMAT_PNG"><span class="type">HB_PAINT_IMAGE_FORMAT_PNG</span></a>,
<a class="link" href="harfbuzz-hb-paint.html#HB-PAINT-IMAGE-FORMAT-SVG:CAPS" title="HB_PAINT_IMAGE_FORMAT_SVG"><span class="type">HB_PAINT_IMAGE_FORMAT_SVG</span></a> and <a class="link" href="harfbuzz-hb-paint.html#HB-PAINT-IMAGE-FORMAT-BGRA:CAPS" title="HB_PAINT_IMAGE_FORMAT_BGRA"><span class="type">HB_PAINT_IMAGE_FORMAT_BGRA</span></a>.</p>
<p>The image dimensions and glyph extents are provided if available,
and should be used to size and position the image.</p>
<div class="refsect3">
<a name="hb-paint-image-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>image</p></td>
<td class="parameter_description"><p>the image data</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>width</p></td>
<td class="parameter_description"><p>width of the raster image in pixels, or 0</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>height</p></td>
<td class="parameter_description"><p>height of the raster image in pixels, or 0</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>format</p></td>
<td class="parameter_description"><p>the image format as a tag</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>slant</p></td>
<td class="parameter_description"><p>the synthetic slant ratio to be applied to the image during rendering</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>extents</p></td>
<td class="parameter_description"><p>glyph extents for desired rendering. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-image-func" title="hb_paint_funcs_set_image_func ()"><code class="function">hb_paint_funcs_set_image_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-paint-image-func-t.returns"></a><h4>Returns</h4>
<p> Whether the operation was successful.</p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-image-func"></a><h3>hb_paint_funcs_set_image_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_image_func (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-image-func-t" title="hb_paint_image_func_t ()"><span class="type">hb_paint_image_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the paint-image callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-image-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The paint-image callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-color-line-get-color-stops-func-t"></a><h3>hb_color_line_get_color_stops_func_t ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">int</span>
<span class="c_punctuation">(</span>*hb_color_line_get_color_stops_func_t<span class="c_punctuation">)</span>
(<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> *color_line</code></em>,
<em class="parameter"><code><span class="type">void</span> *color_line_data</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> start</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> *count</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-stop-t" title="hb_color_stop_t"><span class="type">hb_color_stop_t</span></a> *color_stops</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> to fetch color stops.</p>
<div class="refsect3">
<a name="hb-color-line-get-color-stops-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>color_line</p></td>
<td class="parameter_description"><p>a <a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color_line_data</p></td>
<td class="parameter_description"><p>the data accompanying <em class="parameter"><code>color_line</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start</p></td>
<td class="parameter_description"><p>the index of the first color stop to return</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>count</p></td>
<td class="parameter_description"><p>Input = the maximum number of feature tags to return;
Output = the actual number of feature tags returned (may be zero). </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for input and for returning results. Default is transfer full."><span class="acronym">inout</span></acronym>][<acronym title="NULL may be passed instead of a pointer to a location."><span class="acronym">optional</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>color_stops</p></td>
<td class="parameter_description"><p>Array of <a class="link" href="harfbuzz-hb-paint.html#hb-color-stop-t" title="hb_color_stop_t"><span class="type">hb_color_stop_t</span></a> to populate. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=count][<acronym title="NULL may be passed instead of a pointer to a location."><span class="acronym">optional</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>the data accompanying this method</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-color-line-get-color-stops-func-t.returns"></a><h4>Returns</h4>
<p> the total number of color stops in <em class="parameter"><code>color_line</code></em>
</p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-color-line-get-color-stops"></a><h3>hb_color_line_get_color_stops ()</h3>
<pre class="programlisting">unsigned <span class="returnvalue">int</span>
hb_color_line_get_color_stops (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> *color_line</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> start</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> *count</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-stop-t" title="hb_color_stop_t"><span class="type">hb_color_stop_t</span></a> *color_stops</code></em>);</pre>
<p>Fetches a list of color stops from the given color line object.</p>
<p>Note that due to variations being applied, the returned color stops
may be out of order. It is the callers responsibility to ensure that
color stops are sorted by their offset before they are used.</p>
<div class="refsect3">
<a name="hb-color-line-get-color-stops.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>color_line</p></td>
<td class="parameter_description"><p>a <a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start</p></td>
<td class="parameter_description"><p>the index of the first color stop to return</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>count</p></td>
<td class="parameter_description"><p>Input = the maximum number of feature tags to return;
Output = the actual number of feature tags returned (may be zero). </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for input and for returning results. Default is transfer full."><span class="acronym">inout</span></acronym>][<acronym title="NULL may be passed instead of a pointer to a location."><span class="acronym">optional</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>color_stops</p></td>
<td class="parameter_description"><p>Array of <a class="link" href="harfbuzz-hb-paint.html#hb-color-stop-t" title="hb_color_stop_t"><span class="type">hb_color_stop_t</span></a> to populate. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=count][<acronym title="NULL may be passed instead of a pointer to a location."><span class="acronym">optional</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-color-line-get-color-stops.returns"></a><h4>Returns</h4>
<p> the total number of color stops in <em class="parameter"><code>color_line</code></em>
</p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-color-line-get-extend-func-t"></a><h3>hb_color_line_get_extend_func_t ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-paint.html#hb-paint-extend-t" title="enum hb_paint_extend_t"><span class="returnvalue">hb_paint_extend_t</span></a>
<span class="c_punctuation">(</span>*hb_color_line_get_extend_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> *color_line</code></em>,
<em class="parameter"><code><span class="type">void</span> *color_line_data</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <em class="parameter"><code>hb_color_line_t</code></em>
to fetches the extend mode.</p>
<div class="refsect3">
<a name="hb-color-line-get-extend-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>color_line</p></td>
<td class="parameter_description"><p>a <a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color_line_data</p></td>
<td class="parameter_description"><p>the data accompanying <em class="parameter"><code>color_line</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>the data accompanying this method</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-color-line-get-extend-func-t.returns"></a><h4>Returns</h4>
<p> the extend mode of <em class="parameter"><code>color_line</code></em>
</p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-color-line-get-extend"></a><h3>hb_color_line_get_extend ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-paint.html#hb-paint-extend-t" title="enum hb_paint_extend_t"><span class="returnvalue">hb_paint_extend_t</span></a>
hb_color_line_get_extend (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> *color_line</code></em>);</pre>
<p>Fetches the extend mode of the color line object.</p>
<div class="refsect3">
<a name="hb-color-line-get-extend.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>color_line</p></td>
<td class="parameter_description"><p>a <a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> object</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-color-line-get-extend.returns"></a><h4>Returns</h4>
<p> the extend mode of <em class="parameter"><code>color_line</code></em>
</p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-linear-gradient-func-t"></a><h3>hb_paint_linear_gradient_func_t ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*hb_paint_linear_gradient_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> *color_line</code></em>,
<em class="parameter"><code><span class="type">float</span> x0</code></em>,
<em class="parameter"><code><span class="type">float</span> y0</code></em>,
<em class="parameter"><code><span class="type">float</span> x1</code></em>,
<em class="parameter"><code><span class="type">float</span> y1</code></em>,
<em class="parameter"><code><span class="type">float</span> x2</code></em>,
<em class="parameter"><code><span class="type">float</span> y2</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to paint a linear
gradient everywhere within the current clip.</p>
<p>The <em class="parameter"><code>color_line</code></em>
object contains information about the colors of the gradients.
It is only valid for the duration of the callback, you cannot keep it around.</p>
<p>The coordinates of the points are interpreted according
to the current transform.</p>
<p>See the OpenType spec <a class="ulink" href="https://learn.microsoft.com/en-us/typography/opentype/spec/colr" target="_top">COLR</a>
section for details on how the points define the direction
of the gradient, and how to interpret the <em class="parameter"><code>color_line</code></em>
.</p>
<div class="refsect3">
<a name="hb-paint-linear-gradient-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color_line</p></td>
<td class="parameter_description"><p>Color information for the gradient</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x0</p></td>
<td class="parameter_description"><p>X coordinate of the first point</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y0</p></td>
<td class="parameter_description"><p>Y coordinate of the first point</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x1</p></td>
<td class="parameter_description"><p>X coordinate of the second point</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y1</p></td>
<td class="parameter_description"><p>Y coordinate of the second point</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x2</p></td>
<td class="parameter_description"><p>X coordinate of the third point</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y2</p></td>
<td class="parameter_description"><p>Y coordinate of the third point</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-linear-gradient-func" title="hb_paint_funcs_set_linear_gradient_func ()"><code class="function">hb_paint_funcs_set_linear_gradient_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-linear-gradient-func"></a><h3>hb_paint_funcs_set_linear_gradient_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_linear_gradient_func
(<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-linear-gradient-func-t" title="hb_paint_linear_gradient_func_t ()"><span class="type">hb_paint_linear_gradient_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the linear-gradient callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-linear-gradient-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The linear-gradient callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-radial-gradient-func-t"></a><h3>hb_paint_radial_gradient_func_t ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*hb_paint_radial_gradient_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> *color_line</code></em>,
<em class="parameter"><code><span class="type">float</span> x0</code></em>,
<em class="parameter"><code><span class="type">float</span> y0</code></em>,
<em class="parameter"><code><span class="type">float</span> r0</code></em>,
<em class="parameter"><code><span class="type">float</span> x1</code></em>,
<em class="parameter"><code><span class="type">float</span> y1</code></em>,
<em class="parameter"><code><span class="type">float</span> r1</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to paint a radial
gradient everywhere within the current clip.</p>
<p>The <em class="parameter"><code>color_line</code></em>
object contains information about the colors of the gradients.
It is only valid for the duration of the callback, you cannot keep it around.</p>
<p>The coordinates of the points are interpreted according
to the current transform.</p>
<p>See the OpenType spec <a class="ulink" href="https://learn.microsoft.com/en-us/typography/opentype/spec/colr" target="_top">COLR</a>
section for details on how the points define the direction
of the gradient, and how to interpret the <em class="parameter"><code>color_line</code></em>
.</p>
<div class="refsect3">
<a name="hb-paint-radial-gradient-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color_line</p></td>
<td class="parameter_description"><p>Color information for the gradient</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x0</p></td>
<td class="parameter_description"><p>X coordinate of the first circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y0</p></td>
<td class="parameter_description"><p>Y coordinate of the first circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>r0</p></td>
<td class="parameter_description"><p>radius of the first circle</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x1</p></td>
<td class="parameter_description"><p>X coordinate of the second circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y1</p></td>
<td class="parameter_description"><p>Y coordinate of the second circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>r1</p></td>
<td class="parameter_description"><p>radius of the second circle</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-radial-gradient-func" title="hb_paint_funcs_set_radial_gradient_func ()"><code class="function">hb_paint_funcs_set_radial_gradient_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-radial-gradient-func"></a><h3>hb_paint_funcs_set_radial_gradient_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_radial_gradient_func
(<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-radial-gradient-func-t" title="hb_paint_radial_gradient_func_t ()"><span class="type">hb_paint_radial_gradient_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the radial-gradient callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-radial-gradient-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The radial-gradient callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-sweep-gradient-func-t"></a><h3>hb_paint_sweep_gradient_func_t ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*hb_paint_sweep_gradient_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> *color_line</code></em>,
<em class="parameter"><code><span class="type">float</span> x0</code></em>,
<em class="parameter"><code><span class="type">float</span> y0</code></em>,
<em class="parameter"><code><span class="type">float</span> start_angle</code></em>,
<em class="parameter"><code><span class="type">float</span> end_angle</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to paint a sweep
gradient everywhere within the current clip.</p>
<p>The <em class="parameter"><code>color_line</code></em>
object contains information about the colors of the gradients.
It is only valid for the duration of the callback, you cannot keep it around.</p>
<p>The coordinates of the points are interpreted according
to the current transform.</p>
<p>See the OpenType spec <a class="ulink" href="https://learn.microsoft.com/en-us/typography/opentype/spec/colr" target="_top">COLR</a>
section for details on how the points define the direction
of the gradient, and how to interpret the <em class="parameter"><code>color_line</code></em>
.</p>
<div class="refsect3">
<a name="hb-paint-sweep-gradient-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color_line</p></td>
<td class="parameter_description"><p>Color information for the gradient</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x0</p></td>
<td class="parameter_description"><p>X coordinate of the circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y0</p></td>
<td class="parameter_description"><p>Y coordinate of the circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start_angle</p></td>
<td class="parameter_description"><p>the start angle, in radians</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>end_angle</p></td>
<td class="parameter_description"><p>the end angle, in radians</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-sweep-gradient-func" title="hb_paint_funcs_set_sweep_gradient_func ()"><code class="function">hb_paint_funcs_set_sweep_gradient_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-sweep-gradient-func"></a><h3>hb_paint_funcs_set_sweep_gradient_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_sweep_gradient_func
(<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-sweep-gradient-func-t" title="hb_paint_sweep_gradient_func_t ()"><span class="type">hb_paint_sweep_gradient_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the sweep-gradient callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-sweep-gradient-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The sweep-gradient callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-push-group-func-t"></a><h3>hb_paint_push_group_func_t ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*hb_paint_push_group_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to use
an intermediate surface for subsequent paint calls.</p>
<p>The drawing will be redirected to an intermediate surface
until a matching call to the <span class="type">hb_paint_funcs_pop_group_func_t</span>
vfunc.</p>
<div class="refsect3">
<a name="hb-paint-push-group-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-push-group-func" title="hb_paint_funcs_set_push_group_func ()"><code class="function">hb_paint_funcs_set_push_group_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-push-group-func"></a><h3>hb_paint_funcs_set_push_group_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_push_group_func (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-push-group-func-t" title="hb_paint_push_group_func_t ()"><span class="type">hb_paint_push_group_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the push-group callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-push-group-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The push-group callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-pop-group-func-t"></a><h3>hb_paint_pop_group_func_t ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*hb_paint_pop_group_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-composite-mode-t" title="enum hb_paint_composite_mode_t"><span class="type">hb_paint_composite_mode_t</span></a> mode</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to undo
the effect of a prior call to the <span class="type">hb_paint_funcs_push_group_func_t</span>
vfunc.</p>
<p>This call stops the redirection to the intermediate surface,
and then composites it on the previous surface, using the
compositing mode passed to this call.</p>
<div class="refsect3">
<a name="hb-paint-pop-group-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>mode</p></td>
<td class="parameter_description"><p>the compositing mode to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-pop-group-func" title="hb_paint_funcs_set_pop_group_func ()"><code class="function">hb_paint_funcs_set_pop_group_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-pop-group-func"></a><h3>hb_paint_funcs_set_pop_group_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_pop_group_func (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-pop-group-func-t" title="hb_paint_pop_group_func_t ()"><span class="type">hb_paint_pop_group_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the pop-group callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-pop-group-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The pop-group callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-custom-palette-color-func-t"></a><h3>hb_paint_custom_palette_color_func_t ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
<span class="c_punctuation">(</span>*hb_paint_custom_palette_color_func_t<span class="c_punctuation">)</span>
(<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> color_index</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-color.html#hb-color-t" title="hb_color_t"><span class="type">hb_color_t</span></a> *color</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
<p>A virtual method for the <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> to fetch a color from the custom
color palette.</p>
<p>Custom palette colors override the colors from the fonts selected color
palette. It is not necessary to override all palette entries; for entries
that should be taken from the font palette, return <code class="literal">false</code>.</p>
<p>This function might get called multiple times, but the custom palette is
expected to remain unchanged for duration of a <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a> call.</p>
<div class="refsect3">
<a name="hb-paint-custom-palette-color-func-t.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions object</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>The data accompanying the paint functions in <a class="link" href="harfbuzz-hb-font.html#hb-font-paint-glyph" title="hb_font_paint_glyph ()"><code class="function">hb_font_paint_glyph()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color_index</p></td>
<td class="parameter_description"><p>the color index</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color</p></td>
<td class="parameter_description"><p>fetched color. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>User data pointer passed to <a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-set-pop-group-func" title="hb_paint_funcs_set_pop_group_func ()"><code class="function">hb_paint_funcs_set_pop_group_func()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-paint-custom-palette-color-func-t.returns"></a><h4>Returns</h4>
<p> <code class="literal">true</code> if found, <code class="literal">false</code> otherwise</p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-funcs-set-custom-palette-color-func"></a><h3>hb_paint_funcs_set_custom_palette_color_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_funcs_set_custom_palette_color_func
(<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-custom-palette-color-func-t" title="hb_paint_custom_palette_color_func_t ()"><span class="type">hb_paint_custom_palette_color_func_t</span></a> func</code></em>,
<em class="parameter"><code><span class="type">void</span> *user_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>);</pre>
<p>Sets the custom-palette-color callback on the paint functions struct.</p>
<div class="refsect3">
<a name="hb-paint-funcs-set-custom-palette-color-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>A paint functions struct</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>The custom-palette-color callback. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="This parameter is a 'user_data', for callbacks; many bindings can pass NULL here."><span class="acronym">closure</span></acronym> user_data][<acronym title="This parameter is a 'destroy_data', for callbacks."><span class="acronym">destroy</span></acronym> destroy][<acronym title="The callback is valid until the GDestroyNotify argument is called."><span class="acronym">scope notified</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>Data to pass to <em class="parameter"><code>func</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>Function to call when <em class="parameter"><code>user_data</code></em>
is no longer needed. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-push-transform"></a><h3>hb_paint_push_transform ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_push_transform (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><span class="type">float</span> xx</code></em>,
<em class="parameter"><code><span class="type">float</span> yx</code></em>,
<em class="parameter"><code><span class="type">float</span> xy</code></em>,
<em class="parameter"><code><span class="type">float</span> yy</code></em>,
<em class="parameter"><code><span class="type">float</span> dx</code></em>,
<em class="parameter"><code><span class="type">float</span> dy</code></em>);</pre>
<p>Perform a "push-transform" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-push-transform.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>xx</p></td>
<td class="parameter_description"><p>xx component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>yx</p></td>
<td class="parameter_description"><p>yx component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>xy</p></td>
<td class="parameter_description"><p>xy component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>yy</p></td>
<td class="parameter_description"><p>yy component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dx</p></td>
<td class="parameter_description"><p>dx component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>dy</p></td>
<td class="parameter_description"><p>dy component of the transform matrix</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-pop-transform"></a><h3>hb_paint_pop_transform ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_pop_transform (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>);</pre>
<p>Perform a "pop-transform" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-pop-transform.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-color-glyph"></a><h3>hb_paint_color_glyph ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
hb_paint_color_glyph (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t" title="hb_font_t"><span class="type">hb_font_t</span></a> *font</code></em>);</pre>
<p>Perform a "color-glyph" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-color-glyph.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>glyph</p></td>
<td class="parameter_description"><p>the glyph ID</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>font</p></td>
<td class="parameter_description"><p>the font</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-8-2-0.html#api-index-8.2.0">8.2.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-push-clip-glyph"></a><h3>hb_paint_push_clip_glyph ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_push_clip_glyph (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t" title="hb_font_t"><span class="type">hb_font_t</span></a> *font</code></em>);</pre>
<p>Perform a "push-clip-glyph" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-push-clip-glyph.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>glyph</p></td>
<td class="parameter_description"><p>the glyph ID</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>font</p></td>
<td class="parameter_description"><p>the font</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-push-clip-rectangle"></a><h3>hb_paint_push_clip_rectangle ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_push_clip_rectangle (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><span class="type">float</span> xmin</code></em>,
<em class="parameter"><code><span class="type">float</span> ymin</code></em>,
<em class="parameter"><code><span class="type">float</span> xmax</code></em>,
<em class="parameter"><code><span class="type">float</span> ymax</code></em>);</pre>
<p>Perform a "push-clip-rect" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-push-clip-rectangle.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>xmin</p></td>
<td class="parameter_description"><p>min X for the rectangle</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>ymin</p></td>
<td class="parameter_description"><p>min Y for the rectangle</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>xmax</p></td>
<td class="parameter_description"><p>max X for the rectangle</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>ymax</p></td>
<td class="parameter_description"><p>max Y for the rectangle</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-pop-clip"></a><h3>hb_paint_pop_clip ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_pop_clip (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>);</pre>
<p>Perform a "pop-clip" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-pop-clip.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-color"></a><h3>hb_paint_color ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_color (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="type">hb_bool_t</span></a> is_foreground</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-color.html#hb-color-t" title="hb_color_t"><span class="type">hb_color_t</span></a> color</code></em>);</pre>
<p>Perform a "color" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-color.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>is_foreground</p></td>
<td class="parameter_description"><p>whether the color is the foreground</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color</p></td>
<td class="parameter_description"><p>The color to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-image"></a><h3>hb_paint_image ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_image (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-blob.html#hb-blob-t" title="hb_blob_t"><span class="type">hb_blob_t</span></a> *image</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> width</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> height</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> format</code></em>,
<em class="parameter"><code><span class="type">float</span> slant</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-glyph-extents-t" title="hb_glyph_extents_t"><span class="type">hb_glyph_extents_t</span></a> *extents</code></em>);</pre>
<p>Perform a "image" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-image.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>image</p></td>
<td class="parameter_description"><p>image data</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>width</p></td>
<td class="parameter_description"><p>width of the raster image in pixels, or 0</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>height</p></td>
<td class="parameter_description"><p>height of the raster image in pixels, or 0</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>format</p></td>
<td class="parameter_description"><p>the image format as a tag</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>slant</p></td>
<td class="parameter_description"><p>the synthetic slant ratio to be applied to the image during rendering</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>extents</p></td>
<td class="parameter_description"><p>the extents of the glyph. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed as the value in, out, in-out; or as a return value."><span class="acronym">nullable</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-linear-gradient"></a><h3>hb_paint_linear_gradient ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_linear_gradient (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> *color_line</code></em>,
<em class="parameter"><code><span class="type">float</span> x0</code></em>,
<em class="parameter"><code><span class="type">float</span> y0</code></em>,
<em class="parameter"><code><span class="type">float</span> x1</code></em>,
<em class="parameter"><code><span class="type">float</span> y1</code></em>,
<em class="parameter"><code><span class="type">float</span> x2</code></em>,
<em class="parameter"><code><span class="type">float</span> y2</code></em>);</pre>
<p>Perform a "linear-gradient" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-linear-gradient.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color_line</p></td>
<td class="parameter_description"><p>Color information for the gradient</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x0</p></td>
<td class="parameter_description"><p>X coordinate of the first point</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y0</p></td>
<td class="parameter_description"><p>Y coordinate of the first point</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x1</p></td>
<td class="parameter_description"><p>X coordinate of the second point</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y1</p></td>
<td class="parameter_description"><p>Y coordinate of the second point</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x2</p></td>
<td class="parameter_description"><p>X coordinate of the third point</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y2</p></td>
<td class="parameter_description"><p>Y coordinate of the third point</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-radial-gradient"></a><h3>hb_paint_radial_gradient ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_radial_gradient (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> *color_line</code></em>,
<em class="parameter"><code><span class="type">float</span> x0</code></em>,
<em class="parameter"><code><span class="type">float</span> y0</code></em>,
<em class="parameter"><code><span class="type">float</span> r0</code></em>,
<em class="parameter"><code><span class="type">float</span> x1</code></em>,
<em class="parameter"><code><span class="type">float</span> y1</code></em>,
<em class="parameter"><code><span class="type">float</span> r1</code></em>);</pre>
<p>Perform a "radial-gradient" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-radial-gradient.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color_line</p></td>
<td class="parameter_description"><p>Color information for the gradient</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x0</p></td>
<td class="parameter_description"><p>X coordinate of the first circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y0</p></td>
<td class="parameter_description"><p>Y coordinate of the first circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>r0</p></td>
<td class="parameter_description"><p>radius of the first circle</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x1</p></td>
<td class="parameter_description"><p>X coordinate of the second circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y1</p></td>
<td class="parameter_description"><p>Y coordinate of the second circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>r1</p></td>
<td class="parameter_description"><p>radius of the second circle</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-sweep-gradient"></a><h3>hb_paint_sweep_gradient ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_sweep_gradient (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a> *color_line</code></em>,
<em class="parameter"><code><span class="type">float</span> x0</code></em>,
<em class="parameter"><code><span class="type">float</span> y0</code></em>,
<em class="parameter"><code><span class="type">float</span> start_angle</code></em>,
<em class="parameter"><code><span class="type">float</span> end_angle</code></em>);</pre>
<p>Perform a "sweep-gradient" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-sweep-gradient.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color_line</p></td>
<td class="parameter_description"><p>Color information for the gradient</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>x0</p></td>
<td class="parameter_description"><p>X coordinate of the circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>y0</p></td>
<td class="parameter_description"><p>Y coordinate of the circle's center</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>start_angle</p></td>
<td class="parameter_description"><p>the start angle</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>end_angle</p></td>
<td class="parameter_description"><p>the end angle</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-push-group"></a><h3>hb_paint_push_group ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_push_group (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>);</pre>
<p>Perform a "push-group" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-push-group.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-pop-group"></a><h3>hb_paint_pop_group ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
hb_paint_pop_group (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-composite-mode-t" title="enum hb_paint_composite_mode_t"><span class="type">hb_paint_composite_mode_t</span></a> mode</code></em>);</pre>
<p>Perform a "pop-group" paint operation.</p>
<div class="refsect3">
<a name="hb-paint-pop-group.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>mode</p></td>
<td class="parameter_description"><p>the compositing mode to use</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-custom-palette-color"></a><h3>hb_paint_custom_palette_color ()</h3>
<pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
hb_paint_custom_palette_color (<em class="parameter"><code><a class="link" href="harfbuzz-hb-paint.html#hb-paint-funcs-t" title="hb_paint_funcs_t"><span class="type">hb_paint_funcs_t</span></a> *funcs</code></em>,
<em class="parameter"><code><span class="type">void</span> *paint_data</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> color_index</code></em>,
<em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-color.html#hb-color-t" title="hb_color_t"><span class="type">hb_color_t</span></a> *color</code></em>);</pre>
<p>Gets the custom palette color for <em class="parameter"><code>color_index</code></em>
.</p>
<div class="refsect3">
<a name="hb-paint-custom-palette-color.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>funcs</p></td>
<td class="parameter_description"><p>paint functions</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>paint_data</p></td>
<td class="parameter_description"><p>associated data passed by the caller</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color_index</p></td>
<td class="parameter_description"><p>color index</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>color</p></td>
<td class="parameter_description"><p>fetched color. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="hb-paint-custom-palette-color.returns"></a><h4>Returns</h4>
<p> <code class="literal">true</code> if found, <code class="literal">false</code> otherwise</p>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
</div>
<div class="refsect1">
<a name="harfbuzz-hb-paint.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="hb-paint-funcs-t"></a><h3>hb_paint_funcs_t</h3>
<pre class="programlisting">typedef struct hb_paint_funcs_t hb_paint_funcs_t;
</pre>
<p>Glyph paint callbacks.</p>
<p>The callbacks assume that the caller maintains a stack
of current transforms, clips and intermediate surfaces,
as evidenced by the pairs of push/pop callbacks. The
push/pop calls will be properly nested, so it is fine
to store the different kinds of object on a single stack.</p>
<p>Not all callbacks are required for all kinds of glyphs.
For rendering COLRv0 or non-color outline glyphs, the
gradient callbacks are not needed, and the composite
callback only needs to handle simple alpha compositing
(<a class="link" href="harfbuzz-hb-paint.html#HB-PAINT-COMPOSITE-MODE-SRC-OVER:CAPS"><span class="type">HB_PAINT_COMPOSITE_MODE_SRC_OVER</span></a>).</p>
<p>The paint-image callback is only needed for glyphs
with image blobs in the CBDT, sbix or SVG tables.</p>
<p>The custom-palette-color callback is only necessary if
you want to override colors from the font palette with
custom colors.</p>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="HB-PAINT-IMAGE-FORMAT-PNG:CAPS"></a><h3>HB_PAINT_IMAGE_FORMAT_PNG</h3>
<pre class="programlisting">#define HB_PAINT_IMAGE_FORMAT_PNG HB_TAG('p','n','g',' ')
</pre>
<p>Tag identifying PNG images in <a class="link" href="harfbuzz-hb-paint.html#hb-paint-image-func-t" title="hb_paint_image_func_t ()"><span class="type">hb_paint_image_func_t</span></a> callbacks.</p>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="HB-PAINT-IMAGE-FORMAT-SVG:CAPS"></a><h3>HB_PAINT_IMAGE_FORMAT_SVG</h3>
<pre class="programlisting">#define HB_PAINT_IMAGE_FORMAT_SVG HB_TAG('s','v','g',' ')
</pre>
<p>Tag identifying SVG images in <a class="link" href="harfbuzz-hb-paint.html#hb-paint-image-func-t" title="hb_paint_image_func_t ()"><span class="type">hb_paint_image_func_t</span></a> callbacks.</p>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="HB-PAINT-IMAGE-FORMAT-BGRA:CAPS"></a><h3>HB_PAINT_IMAGE_FORMAT_BGRA</h3>
<pre class="programlisting">#define HB_PAINT_IMAGE_FORMAT_BGRA HB_TAG('B','G','R','A')
</pre>
<p>Tag identifying raw pixel-data images in <a class="link" href="harfbuzz-hb-paint.html#hb-paint-image-func-t" title="hb_paint_image_func_t ()"><span class="type">hb_paint_image_func_t</span></a> callbacks.
The data is in BGRA pre-multiplied sRGBA color-space format.</p>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-color-line-t"></a><h3>hb_color_line_t</h3>
<pre class="programlisting">typedef struct hb_color_line_t hb_color_line_t;
</pre>
<p>A struct containing color information for a gradient.</p>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-color-stop-t"></a><h3>hb_color_stop_t</h3>
<pre class="programlisting">typedef struct {
float offset;
hb_bool_t is_foreground;
hb_color_t color;
} hb_color_stop_t;
</pre>
<p>Information about a color stop on a color line.</p>
<p>Color lines typically have offsets ranging between 0 and 1,
but that is not required.</p>
<p>Note: despite <em class="parameter"><code>color</code></em>
being unpremultiplied here, interpolation in
gradients shall happen in premultiplied space. See the OpenType spec
<a class="ulink" href="https://learn.microsoft.com/en-us/typography/opentype/spec/colr" target="_top">COLR</a>
section for details.</p>
<div class="refsect3">
<a name="hb-color-stop-t.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="struct_member_name"><p><span class="type">float</span> <em class="structfield"><code><a name="hb-color-stop-t.offset"></a>offset</code></em>;</p></td>
<td class="struct_member_description"><p>the offset of the color stop</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="type">hb_bool_t</span></a> <em class="structfield"><code><a name="hb-color-stop-t.is-foreground"></a>is_foreground</code></em>;</p></td>
<td class="struct_member_description"><p>whether the color is the foreground</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a class="link" href="harfbuzz-hb-ot-color.html#hb-color-t" title="hb_color_t"><span class="type">hb_color_t</span></a> <em class="structfield"><code><a name="hb-color-stop-t.color"></a>color</code></em>;</p></td>
<td class="struct_member_description"><p>the color, unpremultiplied</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-extend-t"></a><h3>enum hb_paint_extend_t</h3>
<p>The values of this enumeration determine how color values
outside the minimum and maximum defined offset on a <a class="link" href="harfbuzz-hb-paint.html#hb-color-line-t" title="hb_color_line_t"><span class="type">hb_color_line_t</span></a>
are determined.</p>
<p>See the OpenType spec <a class="ulink" href="https://learn.microsoft.com/en-us/typography/opentype/spec/colr" target="_top">COLR</a>
section for details.</p>
<div class="refsect3">
<a name="hb-paint-extend-t.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-EXTEND-PAD:CAPS"></a>HB_PAINT_EXTEND_PAD</p></td>
<td class="enum_member_description">
<p>Outside the defined interval,
the color of the closest color stop is used.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-EXTEND-REPEAT:CAPS"></a>HB_PAINT_EXTEND_REPEAT</p></td>
<td class="enum_member_description">
<p>The color line is repeated over
repeated multiples of the defined interval</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-EXTEND-REFLECT:CAPS"></a>HB_PAINT_EXTEND_REFLECT</p></td>
<td class="enum_member_description">
<p>The color line is repeated over
repeated intervals, as for the repeat mode.
However, in each repeated interval, the ordering of
color stops is the reverse of the adjacent interval.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
<hr>
<div class="refsect2">
<a name="hb-paint-composite-mode-t"></a><h3>enum hb_paint_composite_mode_t</h3>
<p>The values of this enumeration describe the compositing modes
that can be used when combining temporary redirected drawing
with the backdrop.</p>
<p>See the OpenType spec <a class="ulink" href="https://learn.microsoft.com/en-us/typography/opentype/spec/colr" target="_top">COLR</a>
section for details.</p>
<div class="refsect3">
<a name="hb-paint-composite-mode-t.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-CLEAR:CAPS"></a>HB_PAINT_COMPOSITE_MODE_CLEAR</p></td>
<td class="enum_member_description">
<p>clear destination layer (bounded)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-SRC:CAPS"></a>HB_PAINT_COMPOSITE_MODE_SRC</p></td>
<td class="enum_member_description">
<p>replace destination layer (bounded)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-DEST:CAPS"></a>HB_PAINT_COMPOSITE_MODE_DEST</p></td>
<td class="enum_member_description">
<p>ignore the source</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-SRC-OVER:CAPS"></a>HB_PAINT_COMPOSITE_MODE_SRC_OVER</p></td>
<td class="enum_member_description">
<p>draw source layer on top of destination layer
(bounded)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-DEST-OVER:CAPS"></a>HB_PAINT_COMPOSITE_MODE_DEST_OVER</p></td>
<td class="enum_member_description">
<p>draw destination on top of source</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-SRC-IN:CAPS"></a>HB_PAINT_COMPOSITE_MODE_SRC_IN</p></td>
<td class="enum_member_description">
<p>draw source where there was destination content
(unbounded)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-DEST-IN:CAPS"></a>HB_PAINT_COMPOSITE_MODE_DEST_IN</p></td>
<td class="enum_member_description">
<p>leave destination only where there was
source content (unbounded)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-SRC-OUT:CAPS"></a>HB_PAINT_COMPOSITE_MODE_SRC_OUT</p></td>
<td class="enum_member_description">
<p>draw source where there was no destination
content (unbounded)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-DEST-OUT:CAPS"></a>HB_PAINT_COMPOSITE_MODE_DEST_OUT</p></td>
<td class="enum_member_description">
<p>leave destination only where there was no
source content</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-SRC-ATOP:CAPS"></a>HB_PAINT_COMPOSITE_MODE_SRC_ATOP</p></td>
<td class="enum_member_description">
<p>draw source on top of destination content and
only there</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-DEST-ATOP:CAPS"></a>HB_PAINT_COMPOSITE_MODE_DEST_ATOP</p></td>
<td class="enum_member_description">
<p>leave destination on top of source content
and only there (unbounded)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-XOR:CAPS"></a>HB_PAINT_COMPOSITE_MODE_XOR</p></td>
<td class="enum_member_description">
<p>source and destination are shown where there is only
one of them</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-PLUS:CAPS"></a>HB_PAINT_COMPOSITE_MODE_PLUS</p></td>
<td class="enum_member_description">
<p>source and destination layers are accumulated</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-SCREEN:CAPS"></a>HB_PAINT_COMPOSITE_MODE_SCREEN</p></td>
<td class="enum_member_description">
<p>source and destination are complemented and
multiplied. This causes the result to be at least as light as the lighter
inputs.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-OVERLAY:CAPS"></a>HB_PAINT_COMPOSITE_MODE_OVERLAY</p></td>
<td class="enum_member_description">
<p>multiplies or screens, depending on the
lightness of the destination color.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-DARKEN:CAPS"></a>HB_PAINT_COMPOSITE_MODE_DARKEN</p></td>
<td class="enum_member_description">
<p>replaces the destination with the source if it
is darker, otherwise keeps the source.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-LIGHTEN:CAPS"></a>HB_PAINT_COMPOSITE_MODE_LIGHTEN</p></td>
<td class="enum_member_description">
<p>replaces the destination with the source if it
is lighter, otherwise keeps the source.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-COLOR-DODGE:CAPS"></a>HB_PAINT_COMPOSITE_MODE_COLOR_DODGE</p></td>
<td class="enum_member_description">
<p>brightens the destination color to reflect
the source color.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-COLOR-BURN:CAPS"></a>HB_PAINT_COMPOSITE_MODE_COLOR_BURN</p></td>
<td class="enum_member_description">
<p>darkens the destination color to reflect
the source color.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-HARD-LIGHT:CAPS"></a>HB_PAINT_COMPOSITE_MODE_HARD_LIGHT</p></td>
<td class="enum_member_description">
<p>Multiplies or screens, dependent on source
color.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-SOFT-LIGHT:CAPS"></a>HB_PAINT_COMPOSITE_MODE_SOFT_LIGHT</p></td>
<td class="enum_member_description">
<p>Darkens or lightens, dependent on source
color.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-DIFFERENCE:CAPS"></a>HB_PAINT_COMPOSITE_MODE_DIFFERENCE</p></td>
<td class="enum_member_description">
<p>Takes the difference of the source and
destination color.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-EXCLUSION:CAPS"></a>HB_PAINT_COMPOSITE_MODE_EXCLUSION</p></td>
<td class="enum_member_description">
<p>Produces an effect similar to difference, but
with lower contrast.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-MULTIPLY:CAPS"></a>HB_PAINT_COMPOSITE_MODE_MULTIPLY</p></td>
<td class="enum_member_description">
<p>source and destination layers are multiplied.
This causes the result to be at least as dark as the darker inputs.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-HSL-HUE:CAPS"></a>HB_PAINT_COMPOSITE_MODE_HSL_HUE</p></td>
<td class="enum_member_description">
<p>Creates a color with the hue of the source
and the saturation and luminosity of the target.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-HSL-SATURATION:CAPS"></a>HB_PAINT_COMPOSITE_MODE_HSL_SATURATION</p></td>
<td class="enum_member_description">
<p>Creates a color with the saturation
of the source and the hue and luminosity of the target. Painting with
this mode onto a gray area produces no change.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-HSL-COLOR:CAPS"></a>HB_PAINT_COMPOSITE_MODE_HSL_COLOR</p></td>
<td class="enum_member_description">
<p>Creates a color with the hue and saturation
of the source and the luminosity of the target. This preserves the gray
levels of the target and is useful for coloring monochrome images or
tinting color images.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="HB-PAINT-COMPOSITE-MODE-HSL-LUMINOSITY:CAPS"></a>HB_PAINT_COMPOSITE_MODE_HSL_LUMINOSITY</p></td>
<td class="enum_member_description">
<p>Creates a color with the luminosity of
the source and the hue and saturation of the target. This produces an
inverse effect to <em class="parameter"><code>HB_PAINT_COMPOSITE_MODE_HSL_COLOR</code></em>
.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-7-0-0.html#api-index-7.0.0">7.0.0</a></p>
</div>
</div>
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