// low-level support for the add-on services typedef BOOL (FAR _cdecl *LOADPROC)( CMachine* pMachine ); //---------------------------------------------------- class CAddOnService : public CObject { public: // construction CAddOnService(); // destruction ~CAddOnService(); // Initialize the service. Loads the dll and makes sure // the callback we need is there BOOL FInitializeAddOnService( CString &szName ); // call into the dll to create a new service object that // gets connected to a machine object BOOL LoadService( CMachine* pMachine ); private: HINSTANCE m_library; LOADPROC m_proc; // BOOL (*m_proc) (); };