[Qt-interest] understanding QWSServer

[linux newbie]

Hi,

I read the documents related to QWSServer online and currently working
on it to get better understanding.

I created a application (-qws server), which installed Event Filter.
On pressing ALT+Fn keys, I want the server application window to come
foreground.
I invoked an example application (which wil act as client) in  my
embedded platform. currently this client window is in foreground.

I wrote the following code in Event Filter of server application in
order to bring it to foreground, but Event Filter routine is not
called( I believe any keypress, must comes to server and then moves to
client).

can anyone let me know, the mistake I made.

bool mainApp::eventFilter(QObject *obj, QEvent *event)
{
    if (event->type() == QEvent::KeyPress)
    {
        QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);

        if (keyEvent->modifiers() == Qt::ShiftModifier)
        {
          QList<QWSWindow*> windowList = QWSServer::instance()->clientWindows();

            if (keyEvent->key() == Qt::Key_F1)
            {

               	if (windowList.size() > 1)
                  {
		QWSWindow *win = windowList.at(0);
		win->show();

	   }
                return true;
            }
        }
    }

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