ScanClient/code/HXX.Scanner.Biz/biz/biz_twainException.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

using Saraff.Twain;

namespace HXX.Scanner.Biz
{
    /// <summary>
    /// tw异常相关
    /// </summary>
    public class biz_twainException
    {
        /// <summary>
        /// 根据tw异常参数，获取文字表达
        /// </summary>
        /// <param name="te"></param>
        /// <returns></returns>
        public static string get_TwainException_msg(TwainException te)
        {
            String errorMsg = "";

            if (te.ConditionCode.Equals(TwCC.Bummer))
            {
                errorMsg = "扫描仪出现未知错误[Bummer]";
            }
            else if (te.ConditionCode.Equals(TwCC.LowMemory))
            {
                errorMsg = "扫描仪内存不足[LowMemory]";
            }
            else if (te.ConditionCode.Equals(TwCC.NoDS))
            {
                errorMsg = "扫描仪不在线，未找到设备[NoDS]";
            }
            else if (te.ConditionCode.Equals(TwCC.MaxConnections))
            {
                errorMsg = "扫描仪连接满了，请关闭其他扫描应用[MaxConnections]";
            }
            else if (te.ConditionCode.Equals(TwCC.OperationError))
            {
                errorMsg = "无纸，卡纸或扫描仪操作错误[OperationError]";
            }
            else if (te.ConditionCode.Equals(TwCC.BadCap))
            {
                errorMsg = "扫描仪属性不支持[BadCap]";
            }
            else if (te.ConditionCode.Equals(TwCC.BadProtocol))
            {
                errorMsg = "驱动错误[BadProtocol]";
            }
            else if (te.ConditionCode.Equals(TwCC.SeqError))
            {
                errorMsg = "驱动错误[SeqError]";
            }
            else if (te.ConditionCode.Equals(TwCC.PaperJam))
            {
                errorMsg = "扫描仪卡纸[PaperJam]";
            }
            else
            {
                errorMsg = te.Message;
            }

            return errorMsg;
        }
    }
}