Hello all, I have a feeling this may be off the topic of Boost, so if anyone can point me in the direction of a better place to ask please do (a templates mailing list?). However, I post it here because I think Boost::Bind does something similar internally to what I want to do, so someone may be able to advise. I have a couple of templated class which implement a simple observer pattern (yes I know Boost has signals, but it's not thread safe). It uses a virtual function to make a call in to the observer from the subject. My own observer then derive from this class and implement the notify function. However, I would like to 'template' the name of the function, so that different instances of the template can make calls to different named function. Now in Boost:bind you specify the name of the function in the class to be called, but I don't know how to implement that in my own template class. class observer<typename T> { virtual void Notify(T&); // This is the function I want to rename according to the template } so I might want, in a different instance, the Notify function to be called, Shutdown(). Following code is NOT valid C++, but gives an idea of what I am trying to implement, but don't know enough yet to do so!! class observer<typename T, typename functionname> { virtual void <functionname>(T&) } Is there a way I can use templates to do this? Boost:bind can call a particular member function passed in as part of the template defn, how do I that? I hope that is vaguely clear... James