扫描多页 [英] scanning multiple page

问题描述

Hello All，



我已经完成了扫描代码，当我们将单个文档放在扫描仪上时，它工作正常。如果我们放置多个文档，那么我们如何做它自动扫描所有？我的代码是

Hello All,

I have done code for scanning and it work fine when we put single document on scanner.If we put multiple document so how we do that it scan automatically all? My code is

// Scanner selected?
           var device = Devices.SelectedItem as Scanner;
           if (device == null)
           {
               MessageBox.Show("Please select a device.", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
               return;
           }
           // Scan
           var images = device.Scan();
           //Save the image
           strFinalImagename = txtPolicyno.Text + "_" + ddlDept.SelectedItem + "." + ddlFormat.SelectedItem;

           string strImagename = "test.jpg";
           string path = System.Configuration.ConfigurationSettings.AppSettings["Path"] + strImagename;
           if (File.Exists(path))
           {
               File.Delete(path);
           }
           System.IO.Directory.CreateDirectory(System.Configuration.ConfigurationSettings.AppSettings["Path"]);

           images.SaveFile(path);

           string ImageText = txtPolicyno.Text + "_" + ddlDept.SelectedItem;

           //System.Drawing.Bitmap bitMapImage = new System.Drawing.Bitmap(path);
           //System.Drawing.Graphics graphicImage = System.Drawing.Graphics.FromImage(bitMapImage);
           //graphicImage.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
           //graphicImage.DrawArc(new System.Drawing.Pen(System.Drawing.Color.White, 3), 90, 235, 150, 50, 0, 360);
           //graphicImage.DrawString(ImageText, new System.Drawing.Font("Arial", 15, System.Drawing.FontStyle.Regular), System.Drawing.SystemBrushes.WindowText, new System.Drawing.Point(550, 20));

           ////bitMapImage.Save(@"D:\" + strFinalImagename, System.Drawing.Imaging.ImageFormat.Jpeg);
           //bitMapImage.Save(System.Configuration.ConfigurationSettings.AppSettings["Path"] + strFinalImagename, System.Drawing.Imaging.ImageFormat.Jpeg);
           //graphicImage.Dispose();
           //bitMapImage.Dispose();

           using (var src = new System.Drawing.Bitmap(path))
           using (var bmp = new System.Drawing.Bitmap(1000, 1000, System.Drawing.Imaging.PixelFormat.Format32bppPArgb))
           using (var gr = System.Drawing.Graphics.FromImage(bmp))
           {
               gr.Clear(System.Drawing.Color.Blue);
               gr.DrawImage(src, new System.Drawing.Rectangle(0, 0, bmp.Width, bmp.Height));
               gr.DrawString(ImageText, new System.Drawing.Font("Arial", 15, System.Drawing.FontStyle.Regular), System.Drawing.SystemBrushes.WindowText, new System.Drawing.Point(550, 20));
               bmp.Save(System.Configuration.ConfigurationSettings.AppSettings["Path"] + strFinalImagename, System.Drawing.Imaging.ImageFormat.Png);
           }

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