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