Object's visibility state changed, the event value is the new state.
Since 1.22
visibility,changed: bool;
EFL_GFX_ENTITY_EVENT_VISIBILITY_CHANGED(Eina_Bool)
static void on_efl_gfx_entity_event_visibility_changed(void *data, const Efl_Event *event) { Eina_Bool info = event->info; Eo *obj = event->object; Data *d = data; /* event hander code */ } static void setup_event_handler(Eo *obj, Data *d) { efl_event_callback_add(obj, EFL_GFX_ENTITY_EVENT_VISIBILITY_CHANGED, on_efl_gfx_entity_event_visibility_changed, d); }