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(); }