X11EventFilter() could find it, but x11Event() can't, WHY??????????

[dzh1121]

Dear All,

Sorry, this is an old question, still unsolved.

In main.cpp file, I have

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

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

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In the related SubQApplication, I just inherit from QApplication, and reimplement the X11EventFilter() as follows:

bool SubQApplication::x11EventFilter(XEvent *e){
// http://doc.trolltech.com/4.1/qapplication.html#x11EventFilter
	if(e->type == GenericEvent){
		printf("!!!!!!!!!!!!!!!!!!GenericEvent   finded !!!!!!!!!!!!!\n");
	}
	return false;
}

bool SubQApplication::x11EventFilter(XEvent *e){
// http://doc.trolltech.com/4.1/qapplication.html#x11EventFilter
	if(e->type == GenericEvent){
		printf("!!!!!!!!!!!!!!!!!!GenericEvent   finded !!!!!!!!!!!!!\n");
	}
	return false;
}

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And the Class class MainWindow : public QMainWindow { and implement the bool x11Event(XEvent *e); as follows:

bool MainWindow::x11Event(XEvent * e){
	XEvent ev = *e;
	XGenericEventCookie *cookie = &ev.xcookie; //&e->xcookie;
	if(cookie->type != GenericEvent || cookie->extension != xi_opcode || !XGetEventData(dpy, cookie) ){
		printf("No GenericEvent  Type is found in X11Event,   return   ******************* \n");
		return false;
	}
	printf("EVENT TYPE %d  hahahahahaha---!!!!GenericEvent!!!!!!!!! \n", cookie->evtype);
      return flase;
}

bool MainWindow::x11Event(XEvent * e){
	XEvent ev = *e;
	XGenericEventCookie *cookie = &ev.xcookie; //&e->xcookie;
	if(cookie->type != GenericEvent || cookie->extension != xi_opcode || !XGetEventData(dpy, cookie) ){
		printf("No GenericEvent  Type is found in X11Event,   return   ******************* \n");
		return false;
	}
	printf("EVENT TYPE %d  hahahahahaha---!!!!GenericEvent!!!!!!!!! \n", cookie->evtype);
      return flase;
}

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So, the weired thing is that:
In X11EventFilter, GenericEvent type could be found, but can never be found in X11Event().
i.e, printf("EVENT TYPE %d hahahahahaha---!!!!GenericEvent!!!!!!!!! ) is never excuted!!!!!!!!!

WHY?
Can anybody tell me?

Thanks a million beforehand.

[dzh1121]

Nobody knows it?
Sad

[dzh1121]

Please help.
Thanks