How to implement an outgoing interface on a sink object (C++)

Question

I have a predefined TLB file, with IS8SimulationEvents wrapper method implementations, for instance:

inline HRESULT IS8SimulationEvents::S8SimulationReset ( ) {
    HRESULT _result = 0;
    _com_dispatch_method(this, 0x1, DISPATCH_METHOD, VT_ERROR, (void*)&_result, NULL);
    return _result;
}

Using Oleview, I can see the IConnectionPointContainer interface attached to the COM object.

Question:

• How do I implement the outgoing interface on a sink object, for the client to receive event notification from the COM object

Without:

• ATL
• MFC

Answer 1

This article explain how to implement connections points sources/sinks in plain C http://www.codeproject.com/KB/COM/com_in_c5.aspx

Probably the whole series of articles "COM in plain C" by Jeff Glatt are more than recommended if you want to understand COM at the low level.

PD: Lambdasoft Comet is a framework that implement COM wrappers that doesn't make use of ATL/MFC, it is pretty dated but if you want something simple it worth to take a look http://www.lambdasoft.dk/comet/.