IltmmPlay::ToggleCloseCaptioning Example for C++

void TogglePlayerCloseCaptioning(IltmmPlay *pPlay) 
{ 
   VARIANT_BOOL vrtClose; 
   // turn off closed captioning 
   pPlay->put_CloseCaptioning(VARIANT_FALSE); 
 
   // toggle it now 
   pPlay->ToggleCloseCaptioning(); 
 
   // get the current settting and check it. 
   pPlay->get_CloseCaptioning(&vrtClose); 
 
   if (vrtClose == VARIANT_TRUE) 
      MessageBox(NULL, TEXT("Close captioning rendering is enabled"), TEXT("Toggle Closed Captioning"), MB_OK); 
   else 
      MessageBox(NULL, TEXT("Close captioning rendering is disabled"), TEXT("Toggle Closed Captioning"), MB_OK); 
} 
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