Hi,

I have 3 objects which have same properties and methods and
same implementation.

Is there a way to make something like deriving class from base class
in C++? I mean, how to make equivalent in ATL 3.0(COM)?

Have I to have implementation for methods and properties in
"derived" class or I can use something like "virtual" properties?

Some example would solve my problem.

Thank you very much, Zoran.