private void action()
{
  HOperatorSetX Op = new HOperatorSetX();
  HTupleX Tuple = new HTupleX();
  object hv_BarCodeDescr, hv_WindowHandle=null;
  ...
  HUntypedObjectX ho_Image=null, ho_image=null, ho_CodeRegion=null;

  Op.GenEmptyObj(out ho_Image); Op.GenEmptyObj(out ho_image); 
  ...
  Op.Gen1DBarCodeDescr("2/5 Industrial",6,10,out hv_BarCodeDescr);
  Op.OpenFramegrabber("DirectShow",1,1,0,0,0,0,"default",-1,"default",...);
  for (hv_i=1; (int)hv_i<=4; hv_i = (int)hv_i + 1)
  {
    Marshal.ReleaseComObject(ho_Image);
    Op.GrabImage(out ho_Image,hv_FGHandle);
    Marshal.ReleaseComObject(ho_CodeRegion);
    Op.Find1DBarCode((IHObjectX)ho_image,out ho_CodeRegion,hv_BarCodeDescr,...);
    Op.Decode1DBarCode(hv_BarCode,hv_BarCodeDescr,out hv_Characters,...);
    Op.SetTposition(hv_COMDefWinHandle,24,12);
    Op.WriteString(hv_COMDefWinHandle,Tuple.TupleLastN(...));
    Op.WriteString(hv_COMDefWinHandle,Tuple.TupleSelect(...));
  }
}