deferred class EV_PROGRESS_BAR_I Ancestors EV_GAUGE_I* Descendants EV_HORIZONTAL_PROGRESS_BAR_I* EV_PROGRESS_BAR_IMP* EV_VERTICAL_PROGRESS_BAR_I* Clients EV_PROGRESS_BAR* EV_PROGRESS_BAR_I* Suppliers BOOLEAN EV_PROGRESS_BAR_I*