1  #include <gio/gio.h>
       2  #include <stdlib.h>
       3  #include <string.h>
       4  
       5  
       6  static gint
       7  handle_local_options (GApplication      *application,
       8                        GVariantDict      *options,
       9                        gpointer           user_data)
      10  {
      11    guint32 count;
      12  
      13    /* Deal (locally) with version option */
      14    if (g_variant_dict_lookup (options, "version", "b", &count))
      15      {
      16        g_print ("This is example-cmdline4, version 1.2.3\n");
      17        return EXIT_SUCCESS;
      18      }
      19  
      20    return -1;
      21  
      22  }
      23  
      24  static gint
      25  command_line (GApplication                *application,
      26                GApplicationCommandLine     *cmdline,
      27                gpointer                     user_data)
      28  {
      29    guint32 count;
      30  
      31    GVariantDict *options = g_application_command_line_get_options_dict (cmdline);
      32  
      33    /* Deal with arg option */
      34    if (g_variant_dict_lookup (options, "flag", "b", &count))
      35      {
      36        g_application_command_line_print (cmdline, "flag is set\n");
      37      }
      38  
      39    return EXIT_SUCCESS;
      40  }
      41  
      42  
      43  int
      44  main (int argc, char **argv)
      45  {
      46    GApplication *app;
      47    int status;
      48  
      49    GOptionEntry entries[] = {
      50      /* A version flag option, to be handled locally */
      51      { "version", 'v', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, NULL, "Show the application version", NULL },
      52  
      53      /* A dummy flag option, to be handled in primary */
      54      { "flag", 'f', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, NULL, "A flag argument", NULL },
      55  
      56      G_OPTION_ENTRY_NULL
      57    };
      58  
      59    app = g_application_new ("org.gtk.TestApplication",
      60                             G_APPLICATION_HANDLES_COMMAND_LINE);
      61  
      62    g_application_add_main_option_entries (app, entries);
      63  
      64    g_application_set_option_context_parameter_string (app, "- a simple command line example");
      65    g_application_set_option_context_summary (app,
      66                                              "Summary:\n"
      67                                              "This is a simple command line --help example.");
      68    g_application_set_option_context_description (app,
      69                                                  "Description:\n"
      70                                                  "This example illustrates the use of "
      71                                                  "g_application command line --help functionalities "
      72                                                  "(parameter string, summary, description). "
      73                                                  "It does nothing at all except displaying information "
      74                                                  "when invoked with --help argument...\n");
      75  
      76    g_signal_connect (app, "handle-local-options", G_CALLBACK (handle_local_options), NULL);
      77    g_signal_connect (app, "command-line", G_CALLBACK (command_line), NULL);
      78  
      79    /* This application does absolutely nothing, except if a command line is given */
      80    status = g_application_run (app, argc, argv);
      81  
      82    g_object_unref (app);
      83  
      84    return status;
      85  }