C#使用Twain调用扫描仪

c#通过Twain 直接调用扫描仪功能，vs版本2008以上可用，基本功能俱全

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Drawing.Imaging;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using Twain;
using ICSharpCode.SharpZipLib.Zip;
using System.Net;

namespace TwainDemo
{

    public partial class FrmDemo : Form
    {
        List lstImgPath = new List（）;//当前文件夹所有的图片信息
        public FrmDemo（）
        {
            InitializeComponent（）;
        }
        private int mImageIndex = 1;
        private string mRunPath = ““;
        private string mImagePath = ““;
        private Twain32 mTwain = new Twain32（）;
        private int index = -1;

        private void twEndXfer（object sender Twain32.EndXferEventArgs e）
        {
            string filename = string.Empty;
            //if （mImageIndex == 1）
            //{
            //    filename = “core“;
            //}
            //else
            //{
            //    filename = Guid.NewGuid（）.ToString（）;
            //}
            filename = Guid.NewGuid（）.ToString（）;
            string FileNm = mImagePath + filename + “.png“;
            e.Image.Save（FileNm ImageFormat.Png）;
            //mImageIndex++;
        }
        private void FrmDemo_Load（object sender EventArgs e）
        {
            mRunPath = System.IO.Directory.GetCurrentDirectory（） + “\\“;
            mImagePath = mRunPath + “Image\\“;

            if （Directory.Exists（mImagePath） == false）
            {
                Directory.CreateDirectory（mImagePath）;
            }

            mTwain.Language = TwLanguage.CHINESE_SINGAPORE;
            mTwain.IsTwain2Enable = false;
            mTwain.OpenDSM（）;
            List srclst = new List（）;
            for （int i = 0; i < mTwain.SourcesCount; i++）
            {
                srclst.Add（mTwain.GetSourceProductName（i））;
            }
            combo_Dev.DataSource = srclst;
            mTwain.EndXfer += twEndXfer;
        }

        private void btnScan_Click（object sender EventArgs e）
        {
            if （MessageBox.Show（“您要删除之前的扫描文件吗？“ “提示信息“ MessageBoxButtons.YesNo MessageBoxIcon.Information） == DialogResult.Yes）
            {
                #region 初始化删除所有文件
                foreach （Panel c in pnlImage.Controls）
                {
                    foreach （PictureBox pic in c.Controls）
                    {
                        pic.Image.Dispose（）;
                        pic.Image = null;
                    }
                }
                DirectoryInfo dir = new DirectoryInfo（mImagePath）;
                FileInfo[] inf = dir.GetFiles（）;
                foreach （FileInfo finf in inf）
                {
                    finf.Delete（）;
                }
                #endregion
            }
            float val = 150;// Convert.ToSingle（combo_DPI.Sel

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-09-12 13:54  CSharpTwainDemo\
     目录           0  2018-09-12 11:44  CSharpTwainDemo\.vs\
     目录           0  2018-10-22 09:20  CSharpTwainDemo\.vs\TwainDemo\
     目录           0  2018-10-22 09:20  CSharpTwainDemo\.vs\TwainDemo\v14\
     文件       93696  2018-11-08 17:08  CSharpTwainDemo\.vs\TwainDemo\v14\.suo
     目录           0  2018-09-12 11:44  CSharpTwainDemo\.vs\TwainDemo\v15\
     文件       84992  2019-04-12 09:39  CSharpTwainDemo\.vs\TwainDemo\v15\.suo
     目录           0  2018-09-12 11:44  CSharpTwainDemo\.vs\TwainDemo\v15\Server\
     目录           0  2018-09-12 11:44  CSharpTwainDemo\.vs\TwainDemo\v15\Server\sqlite3\
     文件           0  2018-09-12 11:44  CSharpTwainDemo\.vs\TwainDemo\v15\Server\sqlite3\db.lock
     文件        4096  2018-09-12 11:44  CSharpTwainDemo\.vs\TwainDemo\v15\Server\sqlite3\storage.ide
     文件       32768  2019-04-12 09:30  CSharpTwainDemo\.vs\TwainDemo\v15\Server\sqlite3\storage.ide-shm
     文件     2014712  2019-04-12 09:30  CSharpTwainDemo\.vs\TwainDemo\v15\Server\sqlite3\storage.ide-wal
     文件          16  2018-09-12 13:54  CSharpTwainDemo\Readme.txt
     目录           0  2018-11-12 18:53  CSharpTwainDemo\TwainDemo\
     文件         187  2016-06-28 14:04  CSharpTwainDemo\TwainDemo\App.config
     文件          60  2016-10-12 15:28  CSharpTwainDemo\TwainDemo\ClassDiagram1.cd
     文件       13047  2016-10-15 21:58  CSharpTwainDemo\TwainDemo\FrmDemo.Designer.cs
     文件       22840  2018-11-12 18:53  CSharpTwainDemo\TwainDemo\FrmDemo.cs
     文件        6022  2016-10-15 21:58  CSharpTwainDemo\TwainDemo\FrmDemo.resx
     文件         523  2016-06-28 14:04  CSharpTwainDemo\TwainDemo\Program.cs
     目录           0  2016-10-13 10:59  CSharpTwainDemo\TwainDemo\Properties\
     文件        1356  2016-06-28 14:04  CSharpTwainDemo\TwainDemo\Properties\AssemblyInfo.cs
     文件        6048  2016-10-13 10:59  CSharpTwainDemo\TwainDemo\Properties\Resources.resx
     文件        1096  2016-06-28 14:04  CSharpTwainDemo\TwainDemo\Properties\Settings.Designer.cs
     文件         249  2016-06-28 14:04  CSharpTwainDemo\TwainDemo\Properties\Settings.settings
     文件        2983  2016-10-12 18:28  CSharpTwainDemo\TwainDemo\Properties\app.manifest
     文件      153088  2016-06-29 16:05  CSharpTwainDemo\TwainDemo\Saraff.Twain.dll
     目录           0  2018-11-05 16:19  CSharpTwainDemo\TwainDemo\Twain\
     文件        2319  2016-06-30 11:24  CSharpTwainDemo\TwainDemo\Twain\DibToImage.cs
     文件       34774  2016-10-09 11:47  CSharpTwainDemo\TwainDemo\Twain\Tiff.cs
............此处省略56个文件信息