    deferred class
    	EV_BOX

    Ancestors
    	EV_DOCKABLE_TARGET*
    	EV_WIDGET_LIST*

    Descendants
    	DV_BOX*
    	EV_HORIZONTAL_BOX
    	EV_VERTICAL_BOX

    Clients
    	DV_BOX*
    	EV_BOX*
    	EV_BOX_I*
    	EV_BOX_IMP*
    	EV_DOCKABLE_SOURCE_I*
    	EV_SHARED_TRANSPORT_I
    	MULTIPLE_SPLIT_AREA

    Suppliers
    	BOOLEAN
    	EV_BOX*
    	EV_BOX_I*
    	EV_WIDGET_LIST*
    	INTEGER_32