    deferred class
    	EV_PRIMITIVE

    Ancestors
    	EV_TOOLTIPABLE*
    	EV_WIDGET*

    Descendants
    	EV_BUTTON
    	EV_DRAWING_AREA
    	EV_GAUGE*
    	EV_HEADER
    	EV_LABEL
    	EV_LIST_ITEM_LIST*
    	EV_MULTI_COLUMN_LIST
    	EV_PIXMAP
    	EV_SEPARATOR*
    	EV_TEXT_COMPONENT*
    	EV_TOOL_BAR
    	EV_TREE

    Clients
    	EV_BUTTON
    	EV_DRAWING_AREA
    	EV_GAUGE*
    	EV_HEADER
    	EV_LABEL
    	EV_LIST_ITEM_LIST*
    	EV_MULTI_COLUMN_LIST
    	EV_PRIMITIVE*
    	EV_TEXT_COMPONENT*
    	EV_TOOL_BAR
    	EV_TREE

    Suppliers
    	BOOLEAN
    	EV_PRIMITIVE*
    	EV_TOOLTIPABLE*
    	EV_WIDGET*