IMAPIAdviseSink Problem

[Quell]

Hey.
I have the following code:
Header;

#pragma once
#include <cemapi.h>
#include <mapiutil.h>
#include <mapidefs.h>

class CIMAPIAdviseSink : public IMAPIAdviseSink
{
public:
	CIMAPIAdviseSink(void);
	virtual ~CIMAPIAdviseSink();
	
	STDMETHODIMP			QueryInterface(REFIID riid, LPVOID * ppvObj);
	STDMETHODIMP_(ULONG)	AddRef();
	STDMETHODIMP_(ULONG)	Release();
	
	STDMETHODIMP_(ULONG)	OnNotify (ULONG cNotify, LPNOTIFICATION lpNotifications);

private :	
	LONG		m_cRef;
};

Source

#include "StdAfx.h"
#include "CustomImapi.h"

CIMAPIAdviseSink::CIMAPIAdviseSink(void)
{
}
CIMAPIAdviseSink::~CIMAPIAdviseSink()
{
};


STDMETHODIMP CIMAPIAdviseSink::QueryInterface(REFIID riid, LPVOID * ppvObj)
{
	*ppvObj = 0;
	if (riid == IID_IMAPIAdviseSink ||	riid == IID_IUnknown)
	{
		*ppvObj = (LPVOID)this;
		AddRef();
		return S_OK;
	}
	return E_NOINTERFACE;
};

STDMETHODIMP_(ULONG) CIMAPIAdviseSink::AddRef() 
{
	LONG lCount = InterlockedIncrement(&m_cRef);
	return lCount; 
};

STDMETHODIMP_(ULONG) CIMAPIAdviseSink::Release() 
{
	LONG lCount = InterlockedDecrement(&m_cRef);
	if (!lCount)  delete this; 
	return lCount;
};

STDMETHODIMP_(ULONG) CIMAPIAdviseSink::OnNotify (ULONG cNotify, LPNOTIFICATION lpNotifications)
{
	HRESULT			hRes = S_OK;

	
	try
	{
		for (ULONG i=0 ; i<cNotify ; i++)
		{
			hRes = S_OK;
			if (fnevNewMail == lpNotifications[i].ulEventType)
			{
			}
			else if (fnevTableModified == lpNotifications[i].ulEventType)
			{
				switch(lpNotifications[i].info.tab.ulTableEvent)
				{
				case(TABLE_ERROR):
				case(TABLE_CHANGED):
				case(TABLE_RELOAD):
					//EC_H((HRESULT)::SendMessage(m_hWndParent,WM_MFCMAPI_REFRESHTABLE,(WPARAM) m_hTreeParent,0));
					break;
				case(TABLE_ROW_ADDED):
					/*EC_H((HRESULT)::SendMessage(
						m_hWndParent,
						WM_MFCMAPI_ADDITEM,
						(WPARAM) &lpNotifications[i].info.tab,
						(LPARAM) m_hTreeParent));*/
					break;
				case(TABLE_ROW_DELETED):
					/*EC_H((HRESULT)::SendMessage(
						m_hWndParent,
						WM_MFCMAPI_DELETEITEM,
						(WPARAM) &lpNotifications[i].info.tab,
						(LPARAM) m_hTreeParent));*/
					break;
				case(TABLE_ROW_MODIFIED):
					/*EC_H((HRESULT)::SendMessage(
						m_hWndParent,
						WM_MFCMAPI_MODIFYITEM,
						(WPARAM) &lpNotifications[i].info.tab,
						(LPARAM) m_hTreeParent));*/
					break;
				}
			}
		}
	}
	catch(...)
	{
		/*ErrDialog(__FILE__,__LINE__,
			_T("Exception encountered in CAdviseSink."));*/
	}
	return 0;
}

When i attempt to compile it i get:

error LNK2001: unresolved external symbol IID_IMAPIAdviseSink

Any ideas why? I get go to the definition of the GUID easily.
I included cemapi.lib in the linker options (Smart Device Deploymnet), but i got no idea why i am getting that error.
Thx in advance.

[Quell]

Okey,
I think i figured out the compilation error. I forgot a definition before the object. However i am still having some problems with the code

#define INITGUID
#define USES_IID_IMAPIAdviseSink
#include <initguid.h>
#include <MAPIguid.h>
#include <cemapi.h>
class CMapiAdviseSink : public IMAPIAdviseSink
{
protected:
    LPNOTIFCALLBACK m_pfnCallback;
    LPVOID m_lpvContext;
    LONG m_cRef;

public:
    CMapiAdviseSink( LPNOTIFCALLBACK pfnCallback, LPVOID lpvContext )
    : m_pfnCallback( pfnCallback )
    , m_lpvContext( lpvContext )
    , m_cRef( 0 )
    {
    }

public:// IUnknown
    STDMETHOD(QueryInterface)( REFIID riid, LPVOID FAR * ppvObj )
    {
        if( IID_IUnknown == riid || IID_IMAPIAdviseSink == riid )
        {
            *ppvObj = this;
            AddRef();
            return S_OK;
        }
        return E_NOINTERFACE;
    }
    STDMETHOD_(ULONG, AddRef)()
    {
        return InterlockedIncrement( &m_cRef );
    }
    STDMETHOD_(ULONG, Release)()
    {
        ULONG ul = InterlockedDecrement( &m_cRef );

        if( 0 == ul )
            delete this;

        return ul;
    }

public:// IMAPIAdviseSink
    STDMETHOD_(ULONG, OnNotify)( ULONG cNotif,
        LPNOTIFICATION lpNotifications )
    {
        if( m_pfnCallback )
            m_pfnCallback( m_lpvContext, cNotif, lpNotifications );

        return S_OK;
    }
}; 
STDAPI HrAllocAdviseSink( LPNOTIFCALLBACK lpfnCallback, LPVOID lpvContext, LPMAPIADVISESINK* lppAdviseSink )
{
    if( NULL == lppAdviseSink )
        return E_INVALIDARG;

    *lppAdviseSink = new CMapiAdviseSink( lpfnCallback, lpvContext );

    if( NULL == *lppAdviseSink )
        return E_OUTOFMEMORY;

    (*lppAdviseSink)->AddRef();
    return S_OK;
} 
ULONG __stdcall CallBack (LPVOID lpvContext,  ULONG cNotification,  LPNOTIFICATION lpNotifications  )
{
	MessageBox(0,_T("tesT"),0,0);
	return 0;
}

and use:

DWORD dwContext = 0;
	CMapiAdviseSink *lppAdviseSink = new CMapiAdviseSink((LPNOTIFCALLBACK)&CallBack, &dwContext );
lppAdviseSink);
	(*lppAdviseSink).AddRef();

Anyways, i tried getting any notifications but i am not breaking anywhere.
Note that htis is running on a Win Ce device, but this should be no different from a desktop environment
Any ideas where the mistake is?
Thx in advance.