A user interface receives objects that implement the UndoItem interface through the UIMessage.ActiveXData property of a UIMsg_PushUndoItem UI Message. A user interface uses the UndoItem.EditedFile property to find an appropriate UndoStack to push the undo item onto.

You can also use the UndoItem interface to make an edit to a TestStand file undoable if the UndoItemCreator does not provide enough functionality to undo an edit. To do this, create a COM object that implements the UndoItem interface and send an instance of the object to the sequence editor using a UIMsg_PushUndoItem UI Message.

Properties

Methods

See Also

EditedFile

UIMessage.ActiveXData

UIMessageCodes

UndoItemCreator