XFS CEN not update printer status of ATM -

i want atm journal printer status using wfsgetinfo() xf api function. returns status not updated.

hresult resultexec= wfsgetinfo( hser,wfs_inf_ptr_status,null,wfs_indefinite_wait,&lp);         printf("\n printer  result deviceasync===> %d \n", ((lpwfsptrstatus)lp->lpbuffer)->fwdevice);          switch(((lpwfsptrstatus)lp->lpbuffer)->fwdevice)         {         case wfs_ptr_devonline :             printf("\n printer  result wfs_ptr_devonline : device online. \n");             break;         case wfs_stat_devhwerror:             printf("\n printer  result wfs_stat_devhwerror : device inoperable due hardware error.\n");             break;         case wfs_ptr_devnodevice:             printf("\n printer  result wfs_ptr_devnodevice : there no device intended there; e.g. type of self service machine not contain such device or internally not configured.\n");             break;                   case wfs_ptr_devoffline:             printf("\n printer  result wfs_ptr_devoffline : device offline \n");             break;                   case wfs_ptr_devpoweroff :             printf("\n printer  result wfs_ptr_devpoweroff  : device powered off or physically not connected.\n");             break;                           case wfs_ptr_devusererror :             printf("\n printer  result wfs_ptr_devusererror : device present person preventing proper device operation.\n");             break;                   case wfs_ptr_devbusy :             printf("\n printer  result wfs_ptr_devbusy : device busy , unable process execute command @ time.\n");             break;                   case wfs_ptr_devfraudattempt:             printf("\n printer  result wfs_ptr_devfraudattempt : device present inoperable because has detected fraud attempt.\n");             break;                   case wfs_ptr_devpotentialfraud:             printf("\n printer  result wfs_ptr_devpotentialfraud : device has detected potential fraud attempt , capable of remaining in service. in case application should make decision whether take device offline.\n");             break;                            } 

anyone know why?