Leadtools.Windows.Annotations Namespace > AnnRectangleObject Class : OnRectChanged Method |
protected virtual void OnRectChanged( RoutedPropertyChangedEventArgs<Rect> e )
'Declaration Protected Overridable Sub OnRectChanged( _ ByVal e As RoutedPropertyChangedEventArgs(Of Rect) _ )
'Usage Dim instance As AnnRectangleObject Dim e As RoutedPropertyChangedEventArgs(Of Rect) instance.OnRectChanged(e)
protected: virtual void OnRectChanged( RoutedPropertyChangedEventArgs<Rect>^ e )
Raising an event invokes the event handler through a delegate.
The OnRectChanged 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 OnRectChanged in a derived class, be sure to call the base class's OnRectChanged method so that registered delegates receive the event.