Undoes the operation.
[Visual Basic 6.0]
Sub Undo
[Visual Basic .NET]
Public Sub Undo ( _
)
[C#] public void Undo ( );
[Java] public void undo ( ) throws IOException, AutomationException
[C++]
HRESULT Undo(
void
);
Undo the operation to reset the action from the Do method. Use the CanUndo property to determine whether the operation can be un-done.