HRESULT DVBSourceBDA::InitialiseTuningSpace()
{
    HRESULT hr = S_OK;

    if FAILED(hr = m_pTuningSpace.CoCreateInstance(CLSID_DVBTuningSpace))
    {
 ErrorMessageBox("Could not create DVBTuningSpace");
 return E_FAIL;
    }

    CComQIPtr <IDVBTuningSpace2> piDVBTuningSpace(m_pTuningSpace);
    if (!piDVBTuningSpace)
    {
 m_pTuningSpace.Release();
 ErrorMessageBox("Could not QI TuningSpace");
 return E_FAIL;
    }
    if (FAILED(hr = piDVBTuningSpace->put_SystemType(DVB_Terrestrial)))
    {
 piDVBTuningSpace.Release();
 m_pTuningSpace.Release();
 ErrorMessageBox("Could not put SystemType");
 return E_FAIL;
    }
    CComBSTR bstrNetworkType = "{216C62DF-6D7F-4E9A-8571-05F14EDB766A}";
    if (FAILED(hr = piDVBTuningSpace->put_NetworkType(bstrNetworkType)))
    {
 piDVBTuningSpace.Release();
 m_pTuningSpace.Release();
 ErrorMessageBox("Could not put NetworkType");
 return E_FAIL;
    }
    piDVBTuningSpace.Release();

    return hr;
}

HRESULT DVBSourceBDA::newRequest(LONG lFrequency, LONG lBandwidth, ITuneRequest* &pExTuneRequest)
{
    HRESULT hr = S_OK;

    if (m_pTuningSpace == NULL)
    {
       ErrorMessageBox("Tuning Space is NULL");
       return E_FAIL;
    }

    //Get an interface to the TuningSpace
    CComQIPtr <IDVBTuningSpace2> piDVBTuningSpace(m_pTuningSpace);
   if (!piDVBTuningSpace)
    {
       ErrorMessageBox("Can't Query Interface for an IDVBTuningSpace2");
       return E_FAIL;
   }

    //Get new TuneRequest from tuning space
    //CComPtr <ITuneRequest> pTuneRequest;
    hr = piDVBTuningSpace->CreateTuneRequest(&pExTuneRequest);
    piDVBTuningSpace.Release();
   if (FAILED(hr))
    {
 ErrorMessageBox("Failed to create Tune Request");
 return E_FAIL;
    }

    //Get interface to the TuneRequest
    CComQIPtr <IDVBTuneRequest> piDVBTuneRequest(pExTuneRequest);
    if (!piDVBTuneRequest)
    {
 pExTuneRequest->Release();
       ErrorMessageBox("Can't Query Interface for an IDVBTuneRequest.");
       return E_FAIL;
    }

    //
    // Start
    //
    CComPtr <IDVBTLocator> pDVBTLocator;
    hr = pDVBTLocator.CoCreateInstance(CLSID_DVBTLocator);
    switch (hr)
    {
    case REGDB_E_CLASSNOTREG:
 pExTuneRequest->Release();
 piDVBTuneRequest.Release();
 ErrorMessageBox("The DVBTLocator class isn't registered in the registration database.");
 return E_FAIL;
    case CLASS_E_NOAGGREGATION:
 pExTuneRequest->Release();
 piDVBTuneRequest.Release();
 ErrorMessageBox("The DVBTLocator class can't be created as part of an aggregate.");
 return E_FAIL;
    }

    if (FAILED(hr = pDVBTLocator->put_CarrierFrequency(lFrequency)))
    {
 pDVBTLocator.Release();
 pExTuneRequest->Release();
 piDVBTuneRequest.Release();
 ErrorMessageBox("Can't set Frequency on Locator.");
 return E_FAIL;
    }
    if(FAILED(hr = pDVBTLocator->put_SymbolRate(lBandwidth)))
    {
 pDVBTLocator.Release();
 pExTuneRequest->Release();
 piDVBTuneRequest.Release();
 ErrorMessageBox("Can't set Bandwidth on Locator.");
 return E_FAIL;
    }
    //
    //End
    //

    // Bind the locator to the tune request.
    
   if(FAILED(hr = piDVBTuneRequest->put_Locator(pDVBTLocator))) {
 pDVBTLocator.Release();
 pExTuneRequest->Release();
 piDVBTuneRequest.Release();
       ErrorMessageBox("Cannot put the locator on DVB Tune Request");
       return E_FAIL;
   }

    //hr = pTuneRequest.QueryInterface(pExTuneRequest);

    pDVBTLocator.Release();
    piDVBTuneRequest.Release();

    return hr;
}