-DYNFUN void region_managed_activated(WRegion *reg, WRegion *sub);
-DYNFUN void region_managed_inactivated(WRegion *reg, WRegion *sub);
-DYNFUN void region_managed_notify(WRegion *reg, WRegion *sub, const char *how);
-DYNFUN bool region_managed_may_destroy(WRegion *mgr, WRegion *reg);
+DYNFUN void region_managed_notify(WRegion *reg, WRegion *sub, WRegionNotify how);
+DYNFUN WRegion *region_managed_disposeroot(WRegion *mgr, WRegion *reg);