Return Code	Significance
0	no error
1	no last widget can be activated

The last widget in the widget stack is displayed in the foreground of the screen.

You must call this function whenever a modal window has been deleted by the program and the previously active widget is to be reactivated.

If, for instance you opened a recursive widget for accepting master data at the selected record of a relation widget, you can use dal_wdg_set_lst to reactivate the calling relation record after accepting data and deleting the recursive widget.