Missing TouchEvent

Dosfried

Hi,
i need some help regarding touch events.
I created a QWindow and reimplemented the touchEvent function.
My problem is when i use more than one finger on the touchpad, i only get 1 TouchEnd notification.

Bugreport

I implemented a custom QAbstractNativeEventFilter which sends a QTouchEvent to my window which looks like this:

class TouchEventFilter : public QAbstractNativeEventFilter
{

public:

    virtual bool nativeEventFilter(const QByteArray &eventType, void* message, long*) Q_DECL_OVERRIDE
    {
        if (eventType == "windows_generic_MSG")
        {
            MSG* msg = static_cast<MSG*>(message);
            if (msg->message == WM_POINTERUP)
            {
                if ((WId)(msg->hwnd) == window->winId())
                {
                    QList<QTouchEvent::TouchPoint> touchPoints;
                    QTouchEvent::TouchPoint point;
                    QPointF position(GET_X_LPARAM(msg->lParam), GET_Y_LPARAM(msg->lParam));
                    point.setPos(position);
                    point.setId(?????); // <---
                    touchPoints.push_back(point);

                    QTouchEvent te(QEvent::TouchEnd, nullptr, 0, Qt::TouchPointReleased, touchPoints);

                    QApplication::sendEvent(window, &te);

                    return true;
                }
            }
        }
        return false;
    }

    QWindow* window;
};

My problem is that i have to assign the right id to the TouchPoint object, otherwise i cannot distinguish it from the other touch inputs i received in my application.
Any help would be appreciated.

Dosfried