Undo Method of the FRPage Object
This method undoes the latest command which was called from the FineReader Engine API. The command which was called with the help of one of the methods that can modify the page (for example, methods of the FRPage or the ImageDocument object) can be undone only if it was previously added to the undo stack with the help of the IFRPage::Update method. The method can be executed if the value of the IFRPage::CanUndo property is TRUE.
Visual Basic .NET
This method has no specific return values. It returns the standard return values of ABBYY FineReader Engine functions.