How to Read Barcodes from Images using LEADTOOLS

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

using Leadtools;
using Leadtools.Barcode;
using Leadtools.Codecs;
using Leadtools.Forms;

namespace LEADTOOLSBarcodeTutorial
{
   public partial class Form1 : Form
   {
      public Form1()
      {
         /* Uncomment this and add your license file and developer key
         //string licenseFilePath = "Replace this with the path to the LEADTOOLS license file";
         //string developerKey = "Replace this with your developer key";
         //RasterSupport.SetLicense(licenseFilePath, developerKey); */

         InitializeComponent();
      }

      private void btnLoad_Click(object sender, EventArgs e)
      {
         using (OpenFileDialog ofd = new OpenFileDialog())
         {
            ofd.Filter = "TIFF|*.tif|JPEG|*.jpg|PNG|*.png|BMP|*.bmp|All Files|*.*";
            if (ofd.ShowDialog() == DialogResult.OK)
            {
               using (RasterCodecs codecs = new RasterCodecs())
               {
                  // Load first page into the viewer
                  rasterImageViewer1.Image = codecs.Load(ofd.FileName, 0, CodecsLoadByteOrder.BgrOrGray, 1, 1);
               }
            }
         }
      }

      private void btnRead_Click(object sender, EventArgs e)
      {
         // Create a Barcode engine
         BarcodeEngine engine = new BarcodeEngine();

         // Ignore errors in case there are corrupted ones on the image.
         engine.Reader.ErrorMode = BarcodeReaderErrorMode.IgnoreAll;

         // Read all barcodes with default options. For a tutorial on how to change the options, for example, read barcodes in both horizontal and vertical directions
         // see http://www.leadtools.com/help/leadtools/v175/DH/BA/Leadtools.Barcode~Leadtools.Barcode.BarcodeReadOptions.html
         BarcodeData[] barcodes = engine.Reader.ReadBarcodes(rasterImageViewer1.Image, LogicalRectangle.Empty, 0, null);

         // Print out the barcodes we found
         StringBuilder results = new StringBuilder();
         results.AppendFormat("{0} barcodes found.\r\n\r\n", barcodes.Length);
         for (int i = 0; i < barcodes.Length; i++)
         {
            BarcodeData barcode = barcodes[i];
            results.AppendFormat("  {0} - {1} - {2}\r\n", i + 1, barcode.Symbology, barcode.Value);
         }

         txtResults.Text = results.ToString();
      }
   }
}