Programming with LEADTOOLS Multimedia > C++ Code > IltmmCaptureSubTypes::get_Count Example for C++

IltmmCaptureSubTypes::get_Count Example for C++

void GetNearestCaptureInputSelection(IltmmCapture *pCapture) 
{ 
   IltmmCaptureSubTypes* pVideoCapSubTypes; 
   IltmmCaptureSubType*  pCapSubType; 
   long lCount, lSel, i; 
   VARIANT_BOOL bVar; 
   BSTR bstrName = NULL, bstrFriendlyName = NULL; 
   pCapture->get_VideoCaptureSubTypes(&pVideoCapSubTypes); 
   pVideoCapSubTypes->get_Count(&lCount); 
   if (lCount > 0) 
   { 
      for (i = 0; i < lCount; i++) 
      { 
         pVideoCapSubTypes->Item(i, &pCapSubType); 
         // get the desired subtype 
         // we'll just take the first one for this example 
         if (i == 1) 
         { 
            pCapSubType->get_Name(&bstrName); 
            pCapSubType->get_FriendlyName(&bstrFriendlyName); 
            pCapSubType->get_Selected(&bVar); 
            // unselect it for demonstration purposes 
            if (bVar == VARIANT_TRUE) 
               pCapSubType->put_Selected(VARIANT_FALSE); 
         } 
         // release the capture subtype object 
         pCapSubType->Release(); 
      } 
      // get the current selection (should be -1 or not 1) 
      pVideoCapSubTypes->get_Selection(&lSel); 
      // this should be true 
      if (lSel != 1 && NULL != bstrName) 
      { 
         pVideoCapSubTypes->Find(bstrName, &lSel); 
         pVideoCapSubTypes->put_Selection(lSel); 
      } 
      // free the bstrs 
      SysFreeString(bstrName); 
      SysFreeString(bstrFriendlyName); 
   } 
   // release the capture subtypes object 
   pVideoCapSubTypes->Release(); 
}