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