Release 10.1A: OpenEdge Development:
ADM Reference

confirmUndo

Procedure that, if called with a FALSE argument, publishes confirmUndo all data-targets to determine whether any are Modified or in AddMode. Returns TRUE if the undo should be cancelled. The visual objects (visual.p) warns the user that unsaved changes will be cancelled.

Location: query.p

Parameters:

INPUT-OUTPUT pioCancel AS LOGICAL

Returns TRUE if the data-targets agree that undo can proceed.

Notes: If called with a TRUE argument, the routine does nothing.