void CL_Callback_v2< P1, P2 >::set( void(*)(P1, P2) function); void CL_Callback_v2< P1, P2 >::set( void(*)(P1, P2, UserData) function, const UserData & user_data); void CL_Callback_v2< P1, P2 >::set( InstanceClass * instance, void(InstanceClass::*)(P1, P2) function); void CL_Callback_v2< P1, P2 >::set( InstanceClass * instance, void(InstanceClass::*)(P1, P2, UserData) function, const UserData & user_data);