@return @true on success, @false if something goes wrong (invalid @a service).
*/
- bool Service(unsigned short service);
+ bool Service(unsigned short service) = 0;
/**
Returns the current service.
*/
- unsigned short Service();
+ unsigned short Service() const = 0;
};
/**
Returns the current service.
*/
- virtual unsigned short Service();
+ virtual unsigned short Service() const;
};