C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using tessnet2;

namespace OCR
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            string path = @"D:\timessquaretif.tif";
            Bitmap image = new Bitmap(path);
            Tesseract ocr = new Tesseract();
            ocr.SetVariable("tessedit_char_whitelist", "0123456789"); // If digit only
            ocr.Init(@"C:\TEMP\tessdata\tessdata", "eng", false); // To use correct tessdata
            List<tessnet2.Word> result = ocr.DoOCR(image, Rectangle.Empty);
            foreach (tessnet2.Word word in result)
                //Console.WriteLine("{0} : {1}", word.Confidence, word.Text);
            listBox1.Items.Add(string.Format("{0} : {1}", word.Confidence, word.Text));
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }
    }
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Runtime.InteropServices;
using System.Drawing.Imaging;

namespace SearchLiveCameras
{
    public partial class Form1 : Form
    {
        StreamWriter w;

        public Form1()
        {
            InitializeComponent();

            w = new StreamWriter(@"d:\ocrErrors.txt");

            // Load Image from File
            Bitmap BWImage = new Bitmap(@"d:\timessquare1.bmp");
            // Lock destination bitmap in memory
            System.Drawing.Imaging.BitmapData BWLockImage = BWImage.LockBits(new Rectangle(0, 0, BWImage.Width, BWImage.Height), System.Drawing.Imaging.ImageLockMode.WriteOnly, PixelFormat.Format1bppIndexed);

            // Copy image data to binary array
            int imageSize = BWLockImage.Stride * BWLockImage.Height;
            byte[] BWImageBuffer = new byte[imageSize];
            Marshal.Copy(BWLockImage.Scan0, BWImageBuffer, 0, imageSize);
            DoOCR(BWLockImage, BWImageBuffer, tmpPosRect, false);
        }

        // Do the OCR with this function
        public string DoOCR(System.Drawing.Imaging.BitmapData BWLockImage, byte[] BWImageBuffer, Rectangle iAusschnitt, bool isNumber)
        {
            MODI.Document _MODIDocument = new MODI.Document();
            Bitmap tmpImage = Bildausschnitt1bpp(BWLockImage, BWImageBuffer, iAusschnitt);
            string file = Path.GetTempFileName();
            string tmpResult = "";
            try
            {
                tmpImage.Save(file, ImageFormat.Tiff);
                _MODIDocument.Create(file);
                // Modi parameter erstellen
                _MODIDocument.OCR(MODI.MiLANGUAGES.miLANG_ENGLISH, false, false);

                MODI.IImage myImage = (MODI.IImage)_MODIDocument.Images[0]; //first page in file
                MODI.ILayout myLayout = (MODI.ILayout)myImage.Layout;
                tmpResult = myLayout.Text;
            }
            catch
            {
                if (_MODIDocument != null)
                {
                    _MODIDocument.Close(false); //Closes the document and deallocates the memory.
                    _MODIDocument = null;
                }
                // Bild freigeben
                tmpImage.Dispose();
                tmpImage = null;
                // Garbage Collector ausführen
                GC.Collect();
                // Bilddatei löschen
                File.Delete(file);
            }
            return tmpResult;
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }
    }
}

private void test()
        {
            MODI.Document md = new MODI.Document();
            md.Create("D:\\trying1.tif");
            md.OCR(MODI.MiLANGUAGES.miLANG_ENGLISH, false, false);
            md.Close(false);
            MODI.Image image = (MODI.Image)md.Images[0];
            MODI.Layout layout = image.Layout;
            f = layout.Text;
        }