rem: return new BeDecorator(rect,wlook,wfeel,wflags);
add: return new BeDecorator(rect,title, wlook,wfeel,wflags,ddriver);
context: extern "C" Decorator *instantiate_decorator(BRect rect, int32 wlook, int32 wfeel, int32 wflags){	return new BeDecorator(rect,wlook,wfeel,wflags);}