finish quick demo

Zhao Yuhang

2023-12-18 6500aae0d32383a988aff9fb680d58a851012a14

 src/widgets/widgetwindowagent_win.cpp

@@ -64,6 +64,7 @@
        }

        bool eventFilter(QObject *obj, QEvent *event) override {
            Q_UNUSED(obj)
            switch (event->type()) {
                case QEvent::Paint: {
                    if (widget->windowState() & (Qt::WindowMinimized | Qt::WindowMaximized | Qt::WindowFullScreen))