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