Sets a value indicating whether the undo buffer is active or not.

Introduced: X18.

<void> TXTextControl.setAllowUndo(<boolean> allowUndo, [<EmptyRequestCallback> callback], [<ErrorCallback> errorCallback])

Parameters

Parameter Description
allowUndo Specifies whether the undo buffer is active or not.
callback Optional. Is called when the operation completed.
errorCallback Optional. Is called when the operation failed with an error.