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