#include <gtk/gtk.h>

static int result;

static void
push_button_clicked (GtkWidget *window)
{
  static int my_result = 42;
  result = my_result++;
  gtk_widget_destroy (window);
  gtk_main_quit();
}

static void
pop_button_clicked (void)
{
  GtkWidget *win;
  GtkWidget *button;

  win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_modal (GTK_WINDOW (win), TRUE);
  button = gtk_button_new_with_label ("Push");
  gtk_container_add (GTK_CONTAINER (win), button);
  gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
			     GTK_SIGNAL_FUNC (push_button_clicked),
			     GTK_OBJECT (win));
  gtk_widget_show_all (win);
  gtk_main ();

  g_print ("result is now %d\n", result);
}


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

  gtk_init (&argc, &argv);

  win = gtk_window_new (GTK_WINDOW_TOPLEVEL);

  button = gtk_button_new_with_label ("Pop");
  gtk_container_add (GTK_CONTAINER (win), button);

  gtk_signal_connect (GTK_OBJECT (button), "clicked",
		      GTK_SIGNAL_FUNC (pop_button_clicked),
		      NULL);

  gtk_widget_show_all (win);

  gtk_main ();

  return 0;
}