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