Freezes the Undo/Redo mechanism.
Role: This method flushes the Undo and Redo stacks and locks transactions.
The Undo/Redo mechanism is freezed until
CATAfrUnlockUndoRedoTransactions is called. Modifications done while the Undo/Redo mechanism is freezed will not be undoable.
Parameters:
iWarning
If TRUE, displays a warning message to the user.
Returns:
S_OK
The Undo/Redo mechanism has been freezed
S_FALSE
The Undo/Redo mechanism cannot be freezed during Undo or Redo actions
This object is included in the file: CATAfrUndoRedoServices.h