Get the main Gtk struct
the main Gtk struct as a void*
Loads a loadable icon. For the asynchronous version of this function, see g_loadable_icon_load_async().
Loads an icon asynchronously. To finish this function, see g_loadable_icon_load_finish(). For the synchronous, blocking version of this function, see g_loadable_icon_load().
Finishes an asynchronous icon load started in g_loadable_icon_load_async().