| Name | Description | |
|---|---|---|
 | CloseOpenUndo | Close and open Undo protocol. Call this method to mark step in Undo action list. |
| CloseUndo | Close Undo protocol. After call this method Undo action is not possible. |
| Dispose | Virtual deterministic destructor. |
| DoUndo | Overloaded. Make Undo action - reverse all operations up to last CloseOpenUndo call or initalization of UndoStep object. |
| SetUndoDescription | Set description of Undo action. |