void api_activate_window(char const *appid, char const *role, char const *drawing_area, const reply_func &reply);
void api_deactivate_window(char const *appid, char const *role, const reply_func &reply);
void api_enddraw(char const *appid, char const *role);
+ json_object* api_get_area_list();
+ void api_change_area_size(ChangeAreaReq &areas);
bool api_subscribe(afb_req_t req, EventType event_id);
result<json_object *> api_get_display_info();
result<json_object *> api_get_area_info(char const *role);