private void                                OnEnhancedChanged(object sender, EventArgs e)
 {
     Enhanced = MouseWheel.GetEnhanced(sender as DependencyObject);
 }
 protected virtual void                      OnLoading()
 {
     _enhanced = MouseWheel.GetEnhanced(Controller.Element);
     MouseWheel.EnhancedProperty.AddValueChanged(Controller.Element, OnEnhancedChanged);
 }