Represents the method that handles the OnExtentUpdated event.

[Visual Basic .NET]
Public Delegate Sub OnExtentUpdatedEventHandler ( _
    ByVal displayTransformation As Object, _
    ByVal sizeChanged As Boolean, _
    ByVal newEnvelope As Object _
)

[C#]
public delegate void OnExtentUpdatedEventHandler (
    object displayTransformation,
    bool sizeChanged,
    object newEnvelope
);