Leadtools.Windows.Controls Namespace > RasterImageViewer Class : OnImageChanged Method |
protected virtual void OnImageChanged( RoutedPropertyChangedEventArgs<RasterImage> e )
'Declaration Protected Overridable Sub OnImageChanged( _ ByVal e As RoutedPropertyChangedEventArgs(Of RasterImage) _ )
'Usage Dim instance As RasterImageViewer Dim e As RoutedPropertyChangedEventArgs(Of RasterImage) instance.OnImageChanged(e)
protected virtual void OnImageChanged( RoutedPropertyChangedEventArgs<RasterImage> e )
function Leadtools.Windows.Controls.RasterImageViewer.OnImageChanged( e )
protected: virtual void OnImageChanged( RoutedPropertyChangedEventArgs<RasterImage^>^ e )
Raising an event invokes the event handler through a delegate.
The OnImageChanged 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 OnImageChanged in a derived class, be sure to call the base class's OnImageChanged method so that registered delegates receive the event.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2