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Defining the ProcAmp Control Device Class

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Use the following example code to define the ProcAmp control device class:

// ProcAmp control device class.
struct DXVA_ProcAmpControlDeviceClass : public DXVA_DeviceBaseClass
{
    DXVA_VideoDesc  m_VideoDesc;
    // Uses the base class's constructor.
    DXVA_ProcAmpControlDeviceClass(const GUID& guid, DXVA_DeviceType Type) :
        DXVA_DeviceBaseClass(guid, Type)
    {}
    // The following three functions are part of the 
     // ProcAmp Control DDI.
    HRESULT ProcAmpControlOpenStream(LPDXVA_VideoDesc lpVideoDescription);
    HRESULT ProcAmpControlCloseStream();
    HRESULT ProcAmpControlBlt(
                           LPVOID lpDDSDstSurface,
                           LPVOID lpDDSSrcSurface,
                           DXVA_ProcAmpControlBlt* pCcBlt);
};