Re: ATL/COM with Exchange Client Extensions

Hello All,
I am trying to implement 3 dual interfaces i.e
_IDTExtensibility2
IRibbonExtensibility and their callback interface
ICallbackInterface

and 3 Exchange Client Extensions interfaces i.e
IExchExt,
IExchExtSessionEvents,
IExchExtMessageEvents

into the same class. This is actually an Outlook COM Addin
implementing exchange client extensions functionality also for giving
support in office 2002 and 2003.

The problem which I am facing is, I do not know how to implement them
all together.

Wizard generated code implement dual interface's IDispatch with the
help of IDispatchImpl<> class. In this case the the interfaces
IExchExt like this have no definition of QueryInterface() for them.
Dual interfaces get the implementation of QueryInterface()
automatically with the help of BEGIN_COM_MAP() functionality but what
about Exchange Client Interfaces like, IExchExt?

When I try to define all IUnknown and IDispatch functions on my own
then it gives me error that QueryInterface(), AddRef(), ReleaseRef()
functions are already declared and when I define them without
declaring then it doesn't give me error but it calls some already
written QueryInterface() function without calling my own.

Kindly help me in integrating all the interfaces in one class.

Thanks,
Devansh Mittal