deferred class
	EV_CHECK_BUTTON_I

Ancestors
	EV_TOGGLE_BUTTON_I*

Descendants
	EV_CHECK_BUTTON_IMP

Clients
	EV_CHECK_BUTTON_I*
	EV_CHECK_BUTTON_IMP

Suppliers
	EV_CHECK_BUTTON_I*
	EV_TEXT_ALIGNMENT_CONSTANTS