Release 10.1A: OpenEdge Development:
Progress 4GL Reference

FIRST-CHILD attribute

The handle of the first widget created in the container widget or the current session.

Data type: WIDGET-HANDLE

Access: Readable

Applies to: DIALOG-BOX widget, FIELD-GROUP widget, FRAME widget, MENU widget, SUB-MENU widget, WINDOW widget, SESSION system handle

You can use the FIRST-CHILD attribute to find the first entry in a list of all frames and dialog boxes in a window, all field groups in a frame or dialog box, all widgets in a field group, all menu items in a menu or submenu, or all windows in an OpenEdge session. After finding the first entry, you can find the remaining entries in the list by using each widget’s NEXT-SIBLING attribute.