HRESULT GetCaptureVideoFormatCount(IltmmCapture *pCapture)
{
HRESULT hr;
long lMin, lMax, lSteppingDelta, lDefault, lCapsFlags;
long lFlags, lVal;
IltmmVideoProcAmp* pVidProcAmp = NULL;
// try to get the capture object's VideoProAmp object
hr = pCapture->get_VideoProcAmp(&pVidProcAmp);
if (FAILED(hr))
return hr;
// try to get the range info for the proc amp
hr = pVidProcAmp->GetRange(ltmmVideoProcAmp_Brightness,
&lMin, &lMax, &lSteppingDelta,
&lDefault, &lCapsFlags);
if (FAILED(hr))
{
// release the video proc amp object
pVidProcAmp->Release();
return hr;
}
// try to get the brightness value and (auto or manual) settings
hr = pVidProcAmp->Get(ltmmVideoProcAmp_Brightness,
&lVal, &lFlags);
if (FAILED(hr))
{
// release the video proc amp object
pVidProcAmp->Release();
return hr;
}
// set the brightness value to a manual setting of current+10
lVal = min(lVal + 10, lMax);
hr = pVidProcAmp->Set(ltmmVideoProcAmp_Brightness,
lVal, ltmmVideoProcAmp_Flags_Manual);
if (FAILED(hr))
{
// release the video proc amp object
pVidProcAmp->Release();
return hr;
}
// release the video proc amp object
pVidProcAmp->Release();
return S_OK;
}
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