// Create the system device enumerator
    CComPtr <ICreateDevEnum> pDevEnum =NULL;

    hr = CoCreateInstance (CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC,
        IID_ICreateDevEnum, (void ** ) &pDevEnum);
    if (FAILED(hr))
    {
        Msg(TEXT("Couldn't create system enumerator!  hr=0x%x"), hr);
        return hr;
    }

    // Create an enumerator for the video capture devices
    CComPtr <IEnumMoniker> pClassEnum = NULL;

    hr = pDevEnum->CreateClassEnumerator (CLSID_VideoInputDeviceCategory, &pClassEnum, 0);
    if (FAILED(hr))
    {
        Msg(TEXT("Couldn't create class enumerator!  hr=0x%x"), hr);
        return hr;
    }
   // First Cap Device
    if (S_OK == (pClassEnum->Next (1, &pMoniker1, &cFetched)))
    {
        // Bind Moniker to a filter object
        hr = pMoniker1->BindToObject(0,0,IID_IBaseFilter, (void**)&pCapture1);
        if (FAILED(hr))
        {
            Msg(TEXT("Couldn't bind moniker to filter object1!  hr=0x%x"), hr);
            return hr;
        }
    }
    else
    {
        Msg(TEXT("Unable to access video capture device 1 !"));   
        return E_FAIL;
    }
   // Second Cap device
    if (S_OK == (pClassEnum->Next (1, &pMoniker2, &cFetched)))
    {
        // Bind Moniker to a filter object
        hr = pMoniker2->BindToObject(0,0,IID_IBaseFilter, (void**)&pCapture2);
        if (FAILED(hr))
        {
            Msg(TEXT("Couldn't bind moniker to filter object2!  hr=0x%x"), hr);
            return hr;
        }
    }
    else
    {
        Msg(TEXT("Unable to access video capture device 2 !"));   
        return E_FAIL;
    }