private static extern void VisualTreeHelper_HitTestCallback(HandleRef reference, ref Point point, int callbacksId, Callback_HitTestFilter filter, Callback_HitTestResult result);
private static void HitTestCallbackHelper(Visual reference, Point point, int callbacksId, Callback_HitTestFilter filter, Callback_HitTestResult result)
{
VisualTreeHelper_HitTestCallback(Visual.getCPtr(reference), ref point, callbacksId, filter, result);
}