The handle of the last widget created in the container widget or the current session.
You can use the LAST-CHILD option to find the last 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 ABL session (SESSION system handle). After finding the last entry, you can find the remaining entries in the list by using each widget's
PREV-SIBLING attribute.