ScanClient/code/HXX.Scanner.Biz/twain32/events/twain32_events_SetupFileXferEvent.cs

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

using Saraff.Twain;
using HXX.Scanner.Common;
using HXX.Scanner.Biz.Socket;

namespace HXX.Scanner.Biz
{
    public partial class twain32_events
    {
        /// <summary>
        /// 文件已经扫描，但尚未生成文件，用于赋予文件名
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public static void _twain32_SetupFileXferEvent(object sender, Saraff.Twain.Twain32.SetupFileXferEventArgs e)
        {
            //if (config_environment.use_source_ui && config_environment.first_page)
            //{
            //    biz_engine_prepare.prepare();
            //    config_environment.first_page = false;
            //}

            if (checkCancel(e))
            {
                //设置马上要保存的文件名
                try
                {
                    if (config_environment.scan_type == ScanType.Test_Panel_1_Side || config_environment.scan_type == ScanType.Test_Panel_2_Sides)
                    {
                        //e.FileName = config_manager.Get("dataDir") + "\\" + string.Format(@"测试{0}.{1}", DateTime.Now.ToString("MMddHHmmssfff"), engine.Capabilities.ImageFileFormat.GetCurrent().ToString().ToLower());
                        //e.FileName = config_manager.Get("dataDir") + "\\" + string.Format(@"测试{0}.{1}", DateTime.Now.ToString("MMddHHmmssfff"), "jpeg");
                        e.FileName = config_manager.Get("dataDir") + "\\" + string.Format(@"测试{0}.{1}", DateTime.Now.ToString("MMddHHmmssfff"), "bmp");
                    }
                    else
                    {
                        var fileInfo = file_manager.get_file_info(engine);

                        e.FileName = fileInfo.file_full_name; 
                    }
                }
                catch (Exception ex)
                {
                    LogManager.WriteLog(ex);
                }
            }
        }  

        /// <summary>
        /// 检查扫描是否被取消，取消扫描的操作通常在这里操作
        /// </summary>
        /// <param name="e"></param>
        /// <returns></returns>
        private static Boolean checkCancel(Twain32.SerializableCancelEventArgs e)
        {
            if (!config_environment.scan_state)
            {
                try
                {
                    e.Cancel = true;

                    biz_scanHistory.end_new();
                    biz_scanFinishBatch.Work(2, true);
                    //config_environment.stop_status = 2;
                    biz_scanFinish.Work(null, new ResponseEntity<response_http_uploadImg2>() { Status = 0, Message = "扫描被中止" });
                }
                catch (Exception ex)
                {
                    LogManager.WriteLog(ex);
                }
            }

            return config_environment.scan_state;
        }
    }
}