/// <summary> /// Called when the <see cref="E:System.Windows.UIElement.ManipulationDelta" /> event occurs. /// </summary> /// <param name="e">The data for the event.</param> protected override void OnManipulationDelta(ManipulationDeltaEventArgs e) { base.OnManipulationDelta(e); if (e.Handled) { return; } e.Handled = this.ActualController.HandleTouchDelta(this, e.ToTouchEventArgs(this)); }