/// <summary> /// Event handler for stroke's drawing attributes changes. /// </summary> /// <param name="sender"></param> /// <param name="args"></param> private void OnStrokeDrawingAttributesChanged(object sender, PropertyDataChangedEventArgs args) { // Only enforce rehittesting of the whole stroke when the DrawingAttribute change may affect hittesting if (DrawingAttributes.IsGeometricalDaGuid(args.PropertyGuid)) { Invalidate(); } }