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