how to know if CLSID_CColorConvertDMO supports hardware acceleration

So i created CLSID_CColorConvertDMO using:

IMediaObject pMediaObject;
pMediaObject.CoCreateInstance(CLSID_CColorConvertDMO);

Now I want to check if it will do that using Hardware (GPU) or not. If it will not do that using GPU then i do not want to use it. I read about MF_SA_D3D11_AWARE and on MFT_ENUM_HARDWARE_URL_Attribute They should tell if it is Hardware accelerated supported. But to check that I need access to IMFAttributes. So I tried this:

IMFTransform* oIMFTransform = NULL;IMFAttributes* pAttributes = NULL;
    HRESULT  hr = pMediaObject->QueryInterface(IID_IMFTransform,(void**)&oIMFTransform);

    hr = oIMFTransform->GetAttributes(0,&pAttributes);if(SUCCEEDED(hr)){
        UINT32 bD3DAware =MFGetAttributeUINT32(pAttributes, MF_SA_D3D_AWARE, FALSE);
        bD3DAware++;
        pAttributes->Release();}

But hr that came from hr = oIMFTransform->GetAttributes(&pAttributes); is always E_NOTIMPL So how i can tell if on this PC it will do the color conversion using Hardware or not?

Thanks!