#include <gtk/gtk.h>

static gboolean delete_event( GtkWidget *widget, GdkEvent  *event,
                              gpointer   data )
{
    g_print ("delete event occurred\n");
    return FALSE;
}

static void destroy( GtkWidget *widget, gpointer   data )
{
    gtk_main_quit ();
}

int main( int   argc, char *argv[] )
{
    GtkWidget *window;
    GtkWidget *button;
    gtk_init (&argc, &argv);
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    g_signal_connect (G_OBJECT (window), "delete_event",
		      G_CALLBACK (delete_event), NULL);
    g_signal_connect (G_OBJECT (window), "destroy",
		      G_CALLBACK (destroy), NULL);
    gtk_container_set_border_width (GTK_CONTAINER (window), 10);
    button = gtk_button_new_with_label ("Hello World");    
    gtk_widget_show (window);    
    gtk_main ();
    return 0;
}