This widget is intended to provide graphical display (lines, rectangles, icons,...) and direct manipulation services (select, move, resize,...) for Xt based applications. This widget is intended to be include in a Motif application, but you can generate an either Athena widget (though demos are only using Motif). The widget is shipped with an objects library based on a C object oriented model called Klone (use of the Xt object model would dramatically increase application load time and Klone provides garbage collection).