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