public static int Main(String[] args)
{
QApplication app = new QApplication(args);
QWidget window = new QWidget();
window.Resize(200, 120);
QPushButton quit = new QPushButton( "Quit", window );
quit.Font = new QFont( "Times", 18, (int) QFont.Weight.Bold );
quit.SetGeometry(10, 40, 180, 40);
QObject.Connect( quit, SIGNAL("clicked()"), app, SLOT("quit()") );
window.Show();
return QApplication.Exec();
}