private void InkPresenterOnStrokesErased(InkPresenter sender, InkStrokesErasedEventArgs args)
{
foreach (var stroke in args.Strokes.OrderByDescending(s => s.Id))
{
UndoStrokes.Push(stroke);
}
InkToShapeAssKicker.EraseStrokes(args.Strokes);
}
public InkOperator(InkCanvas inkCanvas)
{
InkCanvas = inkCanvas;
InkCanvas.InkPresenter.InputDeviceTypes = CoreInputDeviceTypes.Pen;
InkToShapeAssKicker = new InkToShapeAssKicker(inkCanvas);
UndoStrokes = new Stack <InkStroke>();
InkCanvas.InkPresenter.StrokesCollected += InkPresenterOnStrokesCollected;
InkCanvas.InkPresenter.StrokesErased += InkPresenterOnStrokesErased;
}