gtk-init.c

/*
 * Compile with:
 * gcc $(pkg-config --cflags gtk+-3.0) *.c $(pkg-config --libs gtk+-3.0) -lm
 *
 * When Gtk is initialized through option group, launching the interactive
 * debugger doesn't work.
 * To test, just comment/uncomment the `#define USE_GTK_INIT`, rebuild, run:
 *
 *     GTK_DEBUG=interactive ./a.out
 */

#include <stdlib.h>
#include <glib.h>
#include <gtk/gtk.h>

//#define USE_GTK_INIT

int
main(int argc, char *argv[])
{
#ifdef USE_GTK_INIT
        /* Initialize using gtk_init() */
        gtk_init(&argc, &argv);

#else
        /* Initialize through option group */
        GOptionContext *context      = g_option_context_new("context");
        GOptionGroup   *option_group = gtk_get_option_group(TRUE);

        g_option_context_add_group(context, option_group);

        if (!g_option_context_parse(context, &argc, &argv, NULL)) {
                g_print("Failed to parse options\n");
                exit(EXIT_FAILURE);
        }
#endif

        /* Print Gtk version */
        printf("Running against GTK+ %u.%u.%u\n",
                gtk_get_major_version(),
                gtk_get_minor_version(),
                gtk_get_micro_version());

        /* Run */
        gtk_main();

        return EXIT_SUCCESS;
}