Man Linux: Main Page and Category List 
NAME
       XmListDeleteAllItems  — A List function that deletes all items from the
       list


SYNOPSIS
       #include <Xm/List.h>
       void XmListDeleteAllItems(
       Widget widget);


DESCRIPTION
       XmListDeleteAllItems deletes all items from the list.

       widget    Specifies the ID of the List from whose list  the  items  are
                 deleted

       For  a  complete  definition  of List and its associated resources, see
       XmList(3).


RELATED
       XmList(3).

                                            XmListDeleteAllItems(library call)