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