IltmmConvert::get_EnableStillCapture Example for C

// This function would be called before start the conversion process 
LPOLESTR T2OLE(LPCTSTR lpt) 
{ 
   static OLECHAR lpw[512]; 
 
   if(!lpt) 
      return NULL; 
 
   lpw[0] = L'\0'; 
 
   MultiByteToWideChar(CP_ACP, 0, lpt, -1, lpw, 512); 
 
   return lpw; 
} 
 
void BeforeConversion(IltmmConvert* pConvert) 
{ 
   long lWnd = 0;  
   ltmmSizeMode lSizeMode;  
   long lVideoH, lVideoW, lWndLeft, lWndTop, lWndW, lWndH;  
   long lLimit;  
   VARIANT_BOOL vb;  
   BSTR bstrLog;  
 
   IltmmConvert_get_VideoWindowHandle (pConvert, &lWnd);  
   if (lWnd)  
   { 
 
      IltmmConvert_get_VideoWidth (pConvert, &lVideoW);  
      IltmmConvert_get_VideoHeight (pConvert, &lVideoH);  
      IltmmConvert_get_VideoWindowWidth (pConvert, &lWndW);  
      IltmmConvert_get_VideoWindowHeight (pConvert, &lWndH);  
      IltmmConvert_get_VideoWindowLeft (pConvert, &lWndLeft);  
      IltmmConvert_get_VideoWindowTop (pConvert, &lWndTop);  
 
      IltmmConvert_get_VideoWindowSizeMode (pConvert, &lSizeMode);  
      if (((lVideoW > lWndW) && (lVideoH > lWndH)) && (lSizeMode != ltmmFit))  
         IltmmConvert_put_VideoWindowSizeMode (pConvert, ltmmFit);  
      else if ((lVideoW < lWndW) && (lVideoH < lWndH))  
         IltmmConvert_put_VideoWindowSizeMode (pConvert, ltmmStretch);  
 
      IltmmConvert_SetVideoWindowPos (pConvert, lWndLeft, lWndTop, lWndW, lWndH);  
   } 
 
   IltmmConvert_put_EnableStillCapture (pConvert, VARIANT_TRUE);  
   IltmmConvert_get_StillCaptureLimit (pConvert, &lLimit);  
   if (lLimit <= 1000)  
      IltmmConvert_put_StillCaptureLimit (pConvert, 10000);  
 
 
   IltmmConvert_get_FullScreenMode (pConvert, &vb);  
   if (vb == VARIANT_TRUE)  
   { 
      // Just to show how to use put_FullScreenMode 
      IltmmConvert_ToggleFullScreenMode (pConvert);  
 
      // Use put_FullScreenMode(VARIANT_FALSE) to turn off the full screen mode 
      IltmmConvert_put_FullScreenMode (pConvert, VARIANT_FALSE);  
   } 
 
   bstrLog = SysAllocString((OLECHAR*)MAKE_MEDIA_PATH("convert.log")); 
   IltmmConvert_OpenLogFile (pConvert, bstrLog, ltmmLogFile_GeneralInfo);  
   SysFreeString(bstrLog);  
} 
 
// This function would be called after the conversion process is finished.  
void EndConversion(IltmmConvert* pConvert) 
{ 
   IltmmConvert_CloseLogFile (pConvert);  
} 
 
// This function would be called to saves a snapshot from the running stream to a file 
void IltmmConvert_get_EnableStillCapture_Example (IltmmConvert* pConvert) 
{ 
   static int i = 0;  
   VARIANT_BOOL vb;  
 
   IltmmConvert_get_EnableStillCapture (pConvert, &vb);  
   if (vb == VARIANT_TRUE)  
   { 
      WCHAR wszFileName[100];  
      wsprintf(wszFileName, MAKE_MEDIA_PATH("SnapShot%d.cmp"), i++); 
 
      IltmmConvert_SaveStillBitmap (pConvert, wszFileName, ltmmConvert_StillFormat_CMP, 2, 0, -1);  
   } 
}