#include #include #include #include int main(int argc, char *argv[]) { QApplication app(argc, argv); QWidget window; window.resize(200,120); QPushButton quit("Quit", &window); quit.setFont (QFont ("Times", 18, QFont::Bold)); quit.setGeometry(10,40,180,40); QObject::connect(&quit, SIGNAL(released()), &app, SLOT(quit())); window.show(); return app.exec(); }