fix bug windows sometimes don't work in Win7 (#9)

zhuzichu

2023-12-22 6dea61fb21756cb43ec1f065a4395410e60570e8

 src/widgets/widgetwindowagent_win.cpp

@@ -67,7 +67,8 @@
            Q_UNUSED(obj)
            switch (event->type()) {
                case QEvent::Paint: {
                    if (widget->windowState() & (Qt::WindowMinimized | Qt::WindowMaximized | Qt::WindowFullScreen))
                    if (widget->windowState() &
                        (Qt::WindowMinimized | Qt::WindowMaximized | Qt::WindowFullScreen))
                        break;

                    auto paintEvent = static_cast<QPaintEvent *>(event);