#include <gtk/gtk.h>

int main(int argc, char *argv[])
{
   GtkWidget *window, *button;

   gtk_init(&argc, &argv);

   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
   gtk_widget_set_uposition (window, 500, 500);

   button = gtk_button_new_with_label ("Hello, world!");
   gtk_container_add (GTK_CONTAINER (window), button);
   gtk_widget_show (button);
   gtk_signal_connect (GTK_OBJECT (button), "clicked",
		       GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
   
   gtk_widget_realize (window);
   gdk_window_set_decorations (window->window,
                               GDK_DECOR_BORDER | GDK_DECOR_TITLE);
   gdk_window_set_functions (window->window, 0);

   gtk_widget_show (window);
   while (gtk_events_pending ())
      gtk_main_iteration ();
   gdk_pointer_grab (window->window, TRUE, 0, window->window, NULL,
                     GDK_CURRENT_TIME);
   
   gtk_main ();
   return 0;
}