[GTK 2.0] [C++] Pełny ekran programu

#include <gtk/gtk.h>

int main( int argc, char * argv[] )
{
    /*** The Widgets we'll be using ***/
    GtkWidget * win = NULL;
    GtkWidget * close = NULL;
   
    /*** Initialize GTK+ ***/
    g_log_set_handler( "Gtk", G_LOG_LEVEL_WARNING,( GLogFunc ) gtk_false, NULL );
    gtk_init( & argc, & argv );
    g_log_set_handler( "Gtk", G_LOG_LEVEL_WARNING, g_log_default_handler, NULL );
   
    /*** Make that Window!!! ***/
    win = gtk_window_new( GTK_WINDOW_TOPLEVEL );
    gtk_container_set_border_width( GTK_CONTAINER( win ), 10 );
    gtk_widget_realize( win );
    gtk_window_fullscreen( win );
   
    /*** this is a button that'll help us close the window ***/
    close = gtk_button_new_with_label( "Close Window" );
    gtk_container_add( win, close );
   
    /*** Callbacks ***/
    g_signal_connect( close, "clicked", gtk_main_quit, NULL );
    g_signal_connect( win, "destroy", gtk_main_quit, NULL );
   
    /*** Enter the main loop ***/
    gtk_widget_show_all( win );
    gtk_main();
   
    return 0;
}

gtk_window_fullscreen( GTK_WINDOW( win ) );

gtk_container_add( GTK_CONTAINER( win ), close );