[Boost-users] shared_ptr and signals

Is it possible to use a shared_ptr object in a signal? I want something like struct A{ ... void operator()(){ ... } ... }; typedef boost::signal Signal; Signal mySignal; boost::shared_ptr<A> a( new A() ); mySignal.connect(a); The trouble seems to be getting the signal to dereference the pointer when the callback is made... Any tips? James