Leadtools.Windows.Annotations Namespace > AnnCrossProductObject Class : OnIntersectionPointChanged Method |
protected virtual void OnIntersectionPointChanged( RoutedPropertyChangedEventArgs<Point> e )
'Declaration Protected Overridable Sub OnIntersectionPointChanged( _ ByVal e As RoutedPropertyChangedEventArgs(Of Point) _ )
'Usage Dim instance As AnnCrossProductObject Dim e As RoutedPropertyChangedEventArgs(Of Point) instance.OnIntersectionPointChanged(e)
protected: virtual void OnIntersectionPointChanged( RoutedPropertyChangedEventArgs<Point>^ e )
Raising an event invokes the event handler through a delegate.
The OnIntersectionPointChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors: When overriding OnIntersectionPointChanged in a derived class, be sure to call the base class's OnIntersectionPointChanged method so that registered delegates receive the event.