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