Leadtools.Windows.Annotations Namespace > AnnFreehandHotspotObject Class : OnPictureChanged Method |
protected virtual void OnPictureChanged( RoutedPropertyChangedEventArgs<AnnPicture> e )
'Declaration Protected Overridable Sub OnPictureChanged( _ ByVal e As RoutedPropertyChangedEventArgs(Of AnnPicture) _ )
'Usage Dim instance As AnnFreehandHotspotObject Dim e As RoutedPropertyChangedEventArgs(Of AnnPicture) instance.OnPictureChanged(e)
protected virtual void OnPictureChanged( RoutedPropertyChangedEventArgs<AnnPicture> e )
function Leadtools.Windows.Annotations.AnnFreehandHotspotObject.OnPictureChanged( e )
protected: virtual void OnPictureChanged( RoutedPropertyChangedEventArgs<AnnPicture^>^ e )
Raising an event invokes the event handler through a delegate.
The OnPictureChanged 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 OnPictureChanged in a derived class, be sure to call the base class's OnPictureChanged 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