Hi Herb.

>> My problem is that I am unable to determine the active control, given that it may be on a form, a page on a page frame or in a nested container object. <<

The only time that this is a problem is if the activeControl is a cell in a grid. Try something like:

IF TYPE('_Screen.ActiveForm.ActiveControl.Name') = 'C'
   IF UPPER(_Screen.ActiveForm.ActiveControl.BaseClass) = 'GRID'
   *** Drill down into the grid for the active cell
   ELSE
      _Screen.ActiveForm.ActiveControl.SetFocus()
   ENDIF
ENDIF

Marcia