Gavin Gear's Tech Blog

//

// Basic Ink enabled Windows Forms application with

// handwriting recognition using RecognizerContext

// Gavin Gear - http://blogs.msdn.com/gavingear

// 08/2006

//

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using Microsoft.Ink; // The managed Tablet PC API

namespace BasicInkApplication

{

    public partial class BasicInkApplication : Form

    {

        // The InkOverlay that we'll attach to our Form

        private InkOverlay inkOverlay;

        public BasicInkApplication()

        {

            InitializeComponent();

            // Create an InkOverlay object that's attached to the Form

            this.inkOverlay = new InkOverlay(this);

            // Enable the InkOverlay (default is Enabled == false)

            this.inkOverlay.Enabled = true;

            // The InkOverlay needs to be disposed due to unmanaged resources

            // used by the InkOverlay

            this.FormClosing += new FormClosingEventHandler(BasicInkApplication_FormClosing);

        }

        void BasicInkApplication_FormClosing(object sender, FormClosingEventArgs e)

        {

            this.inkOverlay.Dispose();

        }

        private void buttonRecognize_Click(object sender, EventArgs e)

        {

            if (this.inkOverlay.Ink.Strokes.Count > 0)

            {

                // Instantiate a RecognizerContext object

                RecognizerContext context = new RecognizerContext();

                // Add the strokes collected by our InkOverlay

                context.Strokes = this.inkOverlay.Ink.Strokes;

                // Perform recognition, pass a RecognitionStatus object

                // that will give the status of the recognition

                RecognitionStatus status;

                RecognitionResult result = context.Recognize(out status);

                RecognitionAlternates alternates = result.GetAlternatesFromSelection();

                string alternatesString = "";

                foreach (RecognitionAlternate alternate in alternates)

                {

                    alternatesString += alternate.ToString() + Environment.NewLine;

                }

                MessageBox.Show(alternatesString, "Alternates from recognition");

                context.Dispose(); // Free the unmanaged resources

            }

        }

    }

}