在QT中如何在QApplication中攔截X11 的事件

1. 繼承 QApplication, 並改寫 x11EventFilter virtual function .


class NewApplication : public QApplication
{
Q_OBJECT

public:
NewApplication(int& argc, char ** argv);

virtual bool x11EventFilter(XEvent *event);

private:

};



bool NewApplication::x11EventFilter(XEvent *event)
{
switch (event->type) {
case ButtonPress:
{
if (event->xbutton.button == 2) {
// 攔截中鍵 ... 寫你要的動作
}
}
case ButtonRelease:
case KeyPress:
case KeyRelease:
case MotionNotify:
};

return NewApplication::x11EventFilter(event);
}


2. 在mail裡面把建立QApplication改成建立NewApplication

QApplication app(argc, argv);

改成

NewApplication app(argc, argv);


3. start app

app.exec();