    deferred class
    	EV_BOX_IMP

    Ancestors
    	EV_BOX_I*
    	EV_DOCKABLE_TARGET_IMP*
    	EV_WEL_CONTROL_CONTAINER_IMP*
    	EV_WIDGET_LIST_IMP*

    Descendants
    	EV_HORIZONTAL_BOX_IMP
    	EV_VERTICAL_BOX_IMP

    Clients
    	EV_BOX_IMP*
    	EV_DOCKABLE_SOURCE_I*
    	EV_HORIZONTAL_BOX_IMP
    	EV_VERTICAL_BOX_IMP

    Suppliers
    	ACTION_SEQUENCE [EVENT_DATA -> TUPLE create default_create end]
    	ARRAYED_LIST [G]
    	BOOLEAN
    	EV_BOX*
    	EV_BOX_IMP*
    	EV_NEW_ITEM_ACTION_SEQUENCE
    	EV_POS_INFO
    	EV_WIDGET*
    	EV_WIDGET_IMP*
    	EV_WIDGET_LIST_IMP*
    	INTEGER_32
    	WEL_RECT