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QT捕获全局windows消息

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int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();
    a.installNativeEventFilter(&w);
    return a.exec();
}

在类中继承QAbstractNativeEventFilter ，实现 virtual bool nativeEventFilter(const QByteArray &eventType, void message, long result) override 接口
代码如下：

//处理windows消息
bool MainWindow::nativeEventFilter(const QByteArray &eventType, void *message, long *)
{
    if(eventType == "windows_generic_MSG" || eventType == "windows_dispatcher_MSG")
    {
        MSG* pMsg = reinterpret_cast<MSG*>(message);
        if(pMsg->message  == WM_DEVICECHANGE)  //消息
        {
           //TODO
        }
    }
    return false;
}

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本文最后更新于2022年06月13日，已超过954天没有更新，若内容或图片失效，请留言反馈。

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