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