C++
virtual void undoSubcommandBack( int );
Description
This reactor method indicates that the UNDO command's BACK option is to be executed. The UNDO/BACK option undoes everything back to the most recent UNDO/MARK marker or back to the beginning of the undo file if no MARK markers exist.
Parameters
| Parameters | Description |
|---|---|
| activity | Passed in value always set to kStart (0) to indicate that this notification occurs before the actual operation is performed |