public class Main
{
  public static int main (string[] args)
  {
    Gtk.init (ref args);

    Gtk.Window window = new Gtk.Window (Gtk.WindowType.TOPLEVEL);
    window.set_default_size (300, 200);
    window.destroy += Gtk.main_quit;
    window.add (new Gtk.Label ("Hello World!"));

    window.show_all ();
    Gtk.main ();
    return 0;
  }
}

