| Visual Basic (Declaration) | |
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Public Sub OnChanged( _ ByVal e As RasterImageChangedEventArgs _ )  | |
| Visual Basic (Usage) |  Copy Code | 
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| C# | |
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public void OnChanged( RasterImageChangedEventArgs e )  | |
| C++/CLI | |
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public: void OnChanged( RasterImageChangedEventArgs^ e )  | |
Parameters
- e
 - A RasterImageChangedEventArgs that contains the event data.
 
For an example, refer to Changed. 
Raising an event invokes the event handler through a delegate.
The OnChanged 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 OnChanged in a derived class, be sure to call the base class's OnChanged method so that registered delegates receive the event.
Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family