检测Qt中的右shift键

#include <QApplication>
#include <QKeyEvent>
#include <QDebug>

class EventFilter : public QObject
{
    Q_OBJECT
public:
    bool eventFilter(QObject* obj, QEvent* event) override
    {
        if (event->type() == QEvent::KeyPress)
        {
            QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
            if (keyEvent->key() == Qt::Key_Shift && keyEvent->modifiers() == Qt::ShiftModifier)
            {
                qDebug() << "Right Shift key pressed";
            }
        }
        else if (event->type() == QEvent::KeyRelease)
        {
            QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
            if (keyEvent->key() == Qt::Key_Shift && keyEvent->modifiers() == Qt::NoModifier)
            {
                qDebug() << "Right Shift key released";
            }
        }

        return QObject::eventFilter(obj, event);
    }
};

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    EventFilter eventFilter;
    app.installEventFilter(&eventFilter);

    // 运行你的Qt应用程序

    return app.exec();
}