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; }