How To Determine if File Extension Should Be Shown for a File

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Sample Code

   LPTSTR lpszTitle;
   WORD cbBuf;
   short nErr;

   // Find the length needed for the title (including null terminator).
   // lpszFile should contain the name and location of the file.
   cbBuf = GetFileTitle(lpszFile,NULL,0);
   if (cbBuf < 0) {
      // There was an error with lpszFile.
   }
   lpszTitle = (LPTSTR) GlobalAlloc(GPTR, sizeof(TCHAR)* cbBuf);

   if (lpszTitle) {
      nErr =  GetFileTitle(lpszFile,lpszTitle,cbBuf);
      if (0 == nErr) {
         // lpszTitle now has the appropriate display name of the
         // file, including or excluding the extension per the
         // user's preferences.
         DoStuffWithTheTitle(lpszTitle);
      } else {
         // There was an error.
         if (nErr < 0) {
            // error in lpszFile's format.
         } else {
            // nErr > 0 means lpszTitle was too small a buffer.
         }
      }
      GlobalFree(lpszTitle);
   }