TImageEnVect.ObjClearUndo
 
Declaration
procedure ObjClearUndo;
Description
Clears the last undo buffer (group of saved objects).
Note: If you are using 
ObjUndoMode = ieumShared to share object and image undo, do not use 
ObjClearUndo. Use 
ClearUndo instead.
Transition Information
If you are transitioning your code to 
TImageEnView Layers, instead of ObjClearUndo, use: 
TImageEnProc.ClearUndo
ImageEnView1.Proc.ClearUndo();