private string DoBarcodeInner(string strImgID, Int64 iFormat, string strSessionID)
        {
            string strReturnValue = "";
            string strResult      = "";

            try
            {
                string strBarcodeInfo = BarcodeMode.Barcode(strImgID, iFormat, strSessionID, ref strResult);
                strReturnValue = "OK;" + strBarcodeInfo + ";" + strResult;
            }

            catch (Exception exp)
            {
                strReturnValue = "EXP;" + exp.Message.ToString() + ";" + strResult;
            }
            finally
            {
            }
            return(strReturnValue);
        }