(IFWINDOW('windowname'))
Returns 1 if a form with the windowname is open, 0 if not. Windowname is the name given to the instance of an MDI form started with the "AS alias" option when using the ENTER, EDIT USING, or BROWSE USING commands.
(IFWINDOW('windowname'))
Returns 1 if a form with the windowname is open, 0 if not. Windowname is the name given to the instance of an MDI form started with the "AS alias" option when using the ENTER, EDIT USING, or BROWSE USING commands.