Can't catch TapAndHoldGesture

[AlaaM]

I grabGesture()ed one of my buttons:

buttons[0]->grabGesture(Qt::TapAndHoldGesture);

in the constructor, and declared:

bool event(QEvent *event);

in protected slots, and implemented it like this:

bool MyClass::event(QEvent *event)
{
    if (event->type() == QEvent::Gesture){
        QGestureEvent *gestevent = static_cast<QGestureEvent *>(event);
        if (QGesture *gest = gestevent->gesture(Qt::TapAndHoldGesture)){
            QTapAndHoldGesture *tapgest = static_cast<QTapAndHoldGesture *>(gestevent->gesture(Qt::TapAndHoldGesture));
            cout << "grabbed a gesture event" << endl;
        }
        return true;
    }
    cout << "not a gesture event" << endl;
    return QWidget::event(event);
}

and I keep getting "not a gesture event" printed to screen.

What I'm trying to do is a long key press (from the keyboard)