*/
template< class T, typename P1, typename P2, typename P3, typename R >
inline CallbackBase* MakeCallback( T* object, R(T::*function)(P1,P2,P3) )
*/
template< class T, typename P1, typename P2, typename P3, typename R >
inline CallbackBase* MakeCallback( T* object, R(T::*function)(P1,P2,P3) )