/// <summary> /// Called when the mouse wheel is scrolled. /// </summary> /// <param name="args">An instance that contains the event data.</param> protected override void OnMouseScrolled(MouseScrolledEventArgs args) { base.OnMouseScrolled(args); if (args.Handled) return; args.Handled = ActualController.HandleMouseWheel(this, args.ToOxyMouseWheelEventArgs()); }