Need help in writing Event Sink in COM

[mooni]

Hi all,

I am trying to create a class that will act as event sink to a COM object. Just to tell you the COM object is SoftUSBEndpoint which is part of Device Simulation Framework.

Anyways its outbound interface is ISoftUSBEndpoin tEevents which implements IUnknown interface. It is shown below

ISoftUSBEndpoin tEvents : public IUnknown
{
...........
.........
};

I tried to implement my EventSink class using IDispEventSimpl eImpl but its not working for me.
Is it because IDispEventSimpl eImpl provides implementation of IDispatch which is not in my hierarchy? If this is so, then how to build non COM event sink class

By the way it worked fine when I implemented my event sink class as a COM class as shown below

class ATL_NO_VTABLE CLoopbackDevice :
public CComObjectRootE x<CComSingleThr eadModel>,
public CComCoClass<CLo opbackDevice, &CLSID_Loopback Device>,
public ISoftUSBEndpoin tEvents,
public IDispatchImpl<I LoopbackDevice, &IID_ILoopbackD evice, &LIBID_SoftUSBL oopbackLib, /*wMajor =*/ 1, /*wMinor =*/ 0>
{

Any clue??

[sicarie]

Bumping .