IltmmAnalogVideoDecoder::put_TVFormat Example for C

HRESULT IltmmAnalogVideoDecoder_put_TVFormat_Example (IltmmCapture* pCapture) 
{ 
   HRESULT        hr; 
   long           lSupportFormats, lTVFormat, lLines;  
   VARIANT_BOOL   vLocked, vVCRLocked, vEnable;  
   IltmmAnalogVideoDecoder* pAnVidDec = NULL;  
 
   hr = IltmmCapture_get_AnalogVideoDecoder(pCapture, &pAnVidDec);  
   if (FAILED(hr))  
   return hr;  
 
   hr = IltmmAnalogVideoDecoder_get_AvailableTVFormats(pAnVidDec, &lSupportFormats);  
   if (FAILED(hr))  
   { 
	   IltmmAnalogVideoDecoder_Release(pAnVidDec);  
	   pAnVidDec = NULL;  
	   return hr;  
   } 
 
   hr = IltmmAnalogVideoDecoder_get_TVFormat(pAnVidDec, &lTVFormat);  
   if (FAILED(hr))  
   { 
	   IltmmAnalogVideoDecoder_Release(pAnVidDec);  
	   pAnVidDec = NULL;  
	   return hr;  
   } 
 
   if ((lTVFormat != AnalogVideo_NTSC_M ) && (lSupportFormats & AnalogVideo_NTSC_M))  
   { 
	   hr = IltmmAnalogVideoDecoder_put_TVFormat(pAnVidDec, AnalogVideo_NTSC_M);  
	   if (FAILED(hr))  
	   { 
		   IltmmAnalogVideoDecoder_Release(pAnVidDec);  
		   pAnVidDec = NULL;  
		   return hr;  
	   } 
   } 
   hr = IltmmAnalogVideoDecoder_get_HorizontalLocked(pAnVidDec, &vLocked);  
   if (FAILED(hr))  
   { 
	   IltmmAnalogVideoDecoder_Release(pAnVidDec);  
	   pAnVidDec = NULL;  
	   return hr;  
   } 
 
   hr = IltmmAnalogVideoDecoder_get_VCRHorizontalLocking(pAnVidDec, &vVCRLocked);  
   if (FAILED(hr))  
   { 
	   IltmmAnalogVideoDecoder_Release(pAnVidDec);  
	   pAnVidDec = NULL;  
	   return hr;  
   } 
   if (vVCRLocked == VARIANT_FALSE)  
   { 
	   hr = IltmmAnalogVideoDecoder_put_VCRHorizontalLocking(pAnVidDec, VARIANT_TRUE);  
	   if (FAILED(hr))  
	   { 
		   IltmmAnalogVideoDecoder_Release(pAnVidDec);  
		   pAnVidDec = NULL;  
		   return hr;  
	   } 
   } 
 
   hr = IltmmAnalogVideoDecoder_get_NumberOfLines(pAnVidDec, &lLines);  
   if (FAILED(hr))  
   { 
	   IltmmAnalogVideoDecoder_Release(pAnVidDec);  
	   pAnVidDec = NULL;  
	   return hr;  
   } 
 
   hr = IltmmAnalogVideoDecoder_get_OutputEnable(pAnVidDec, &vEnable);  
   if (FAILED(hr))  
   { 
	   IltmmAnalogVideoDecoder_Release(pAnVidDec);  
	   pAnVidDec = NULL;  
	   return hr;  
   } 
   if (vEnable == VARIANT_FALSE)  
   { 
	   hr = IltmmAnalogVideoDecoder_put_OutputEnable (pAnVidDec, VARIANT_TRUE);  
	   if (FAILED(hr))  
	   { 
		   IltmmAnalogVideoDecoder_Release(pAnVidDec);  
		   pAnVidDec = NULL;  
		   return hr;  
	   } 
   } 
 
   IltmmAnalogVideoDecoder_Release(pAnVidDec);  
   pAnVidDec = NULL;  
 
   return S_OK; 
}