Instance Method


Performs the undo operations in the last undo group (whether top-level or nested), recording the operations on the redo stack as a single group.


- (void)undoNestedGroup;


Raises an NSInternalInconsistencyException if any undo operations have been registered since the last enableUndoRegistration message.

This method posts an NSUndoManagerCheckpointNotification and NSUndoManagerWillUndoChangeNotification before it performs the undo operation, and it posts an NSUndoManagerDidUndoChangeNotification after it performs the undo operation.

See Also

Performing Undo and Redo

- undo

Closes the top-level undo group if necessary and invokes undoNestedGroup.

- redo

Performs the operations in the last group on the redo stack, if there are any, recording them on the undo stack as a single group.