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