Example #1
0
/*****************************Private*Routine******************************\
* OnSetDDrawDevice
*
\**************************************************************************/
HRESULT
CMpegMovie::OnSetDDrawDevice(
    LPDIRECTDRAW7 pDD,
    HMONITOR hMon
    )
{
    HRESULT hr = S_OK;

    RELEASE(m_pddsRenderT);
    RELEASE(m_pddsPriText);
    RELEASE(m_pddsPrimary);

    __try
    {

        DDSURFACEDESC2 ddsd;  // A surface description structure
        INITDDSTRUCT(ddsd);
        ddsd.dwFlags = DDSD_CAPS;
        ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;

        CHECK_HR(hr = pDD->EnumSurfaces(DDENUMSURFACES_DOESEXIST |
            DDENUMSURFACES_ALL,
            &ddsd,
            &m_pddsPrimary,
            DDSurfEnumFunc));
        if(!m_pddsPrimary)
        {
            hr = E_FAIL;
            __leave;
        }

        MONITORINFOEX miInfoEx;
        miInfoEx.cbSize = sizeof(miInfoEx);
        GetMonitorInfo(hMon, &miInfoEx);

        INITDDSTRUCT(ddsd);
        ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
        ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
        ddsd.dwWidth = (miInfoEx.rcMonitor.right - miInfoEx.rcMonitor.left);
        ddsd.dwHeight = (miInfoEx.rcMonitor.bottom - miInfoEx.rcMonitor.top);

        CHECK_HR(hr = pDD->CreateSurface(&ddsd, &m_pddsPriText, NULL));
        CHECK_HR(hr = pDD->CreateSurface(&ddsd, &m_pddsRenderT, NULL));

    }
    __finally
    {
        if(FAILED(hr))
        {
            RELEASE(m_pddsRenderT);
            RELEASE(m_pddsPriText);
            RELEASE(m_pddsPrimary);
        }
    }

    return hr;
}