#include <Xm/List.h> void XmListDeselectItem( Widget widget, XmString item);
XmListDeselectItem unhighlights and removes from the selected list the first item in the list that matches item.
Specifies the ID of the List from whose list an item is deselected.
Specifies the item to be deselected from the list. If item appears more than once in the List, only the first occurrence is matched.
For a complete definition of List and its associated resources, see XmList(3).