New API's to retrieve Media objects from F98MODAT is not working

we are using below sample code to retrieve the media objects data but API is not creating any output file .

  jdeStrcpy(szQueueName, lpDS->szQueueName);

   jdeStrcpy(szFileName, lpDS->szGTFileName);

   jdeStrcpy(szTargetFileName, lpDS->szOutputFileName);

jderetcode = JDB_SelectMediaObjectFile(hUser, szQueueName, szFileName, szTargetFileName);

//szQueueName - F98MODAT queue name field value

//szFileName    - F98MODAT file name field value

Please share your insights If anyone has used this API's

Thanks In Advance