WPF下System.Windows.Ink的手写识别可否达到工具栏中的tablet pc输入面板中的识别率？

// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF

// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO

// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A

// PARTICULAR PURPOSE.

//

// Copyright (c) Microsoft Corporation. All rights reserved.

//

//  File: InkRecognition.cs

//  Simple Ink Recognition Sample Application

//

//  This program demonstrates how one can build a basic handwriting 

//  recognition application using Microsoft Tablet PC Automation API. 

//  It first creates an InkCollector object to enable inking

//  in the window. Upon receiving the "Recognize!" command, fired

//  from the application's button, ToString() is invoked on the 

//  collected ink strokes to retrieve the best match using the

//  default recognizer.  The results are presented in a message box.

//

//  The features used are: InkCollector, Ink, Strokes, 

//  RecognizerContext, and RecognizerResult

//

//--------------------------------------------------------------------------



using System;

using System.Drawing;

using System.Windows.Forms;



// The Ink namespace, which contains the Tablet PC Platform API

using Microsoft.Ink;



namespace Microsoft.Samples.TabletPC.InkRecognition

{

    /// <summary>

    /// The InkRecognition Sample Application form class

    /// </summary>

    public class InkRecognition : System.Windows.Forms.Form

    {

        // Declare the Ink Collector object

        private InkCollector myInkCollector = null;



        // myRecognizers is used to retrieve the number of installed recognizers

        Recognizers myRecognizers;



        #region Standard Template Code

        private System.Windows.Forms.GroupBox gbInkArea;

        private System.Windows.Forms.Button btnRecognize;

        private System.Windows.Forms.TextBox txtResults;

        private System.ComponentModel.Container components = null;

        #endregion



        /// <summary>

        /// Initialize the form and ink collector

        /// </summary>

        public InkRecognition()

        {

            #region Standard Template Code

            //

            // Required for Windows Form Designer support

            //

            InitializeComponent();

            #endregion

           

        }



        #region Standard Template Code

        /// <summary>

        /// Clean up any resources being used.

        /// </summary>

        protected override void Dispose( bool disposing )

        {

            if( disposing )

            {

                if (components != null) 

                {

                    components.Dispose();

                }

                if (myInkCollector != null)

                {

                    myInkCollector.Dispose();

                }

            }

            base.Dispose( disposing );

        }

        #endregion



        #region Windows Form Designer generated code

        /// <summary>

        /// Required method for Designer support - do not modify

        /// the contents of this method with the code editor.

        /// </summary>

        private void InitializeComponent()

        {

            this.gbInkArea = new System.Windows.Forms.GroupBox();

            this.btnRecognize = new System.Windows.Forms.Button();

            this.txtResults = new System.Windows.Forms.TextBox();

            this.SuspendLayout();

            // 

            // gbInkArea

            // 

            this.gbInkArea.Location = new System.Drawing.Point(8, 0);

            this.gbInkArea.Name = "gbInkArea";

            this.gbInkArea.Size = new System.Drawing.Size(280, 136);

            this.gbInkArea.TabIndex = 0;

            this.gbInkArea.TabStop = false;

            this.gbInkArea.Text = "Ink Here";

            // 

            // btnRecognize

            // 

            this.btnRecognize.Location = new System.Drawing.Point(8, 144);

            this.btnRecognize.Name = "btnRecognize";

            this.btnRecognize.Size = new System.Drawing.Size(280, 23);

            this.btnRecognize.TabIndex = 1;

            this.btnRecognize.Text = "Recognize Ink";

            this.btnRecognize.Click += new System.EventHandler(this.btnRecognize_Click);

            // 

            // txtResults

            // 

            this.txtResults.BackColor = System.Drawing.SystemColors.Window;

            this.txtResults.ForeColor = System.Drawing.SystemColors.WindowText;

            this.txtResults.Location = new System.Drawing.Point(8, 176);

            this.txtResults.Name = "txtResults";

            this.txtResults.ReadOnly = true;

            this.txtResults.Size = new System.Drawing.Size(280, 20);

            this.txtResults.TabIndex = 2;

            this.txtResults.Text = "";

            // 

            // InkRecognition

            // 

            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);

            this.ClientSize = new System.Drawing.Size(292, 206);

            this.Controls.AddRange(new System.Windows.Forms.Control[] {

                                                                          this.txtResults,

                                                                          this.btnRecognize,

                                                                          this.gbInkArea});

            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;

            this.MaximizeBox = false;

            this.Name = "InkRecognition";

            this.Text = "Ink Recognition Sample";

            this.Load += new System.EventHandler(this.InkRecognition_Load);

            this.ResumeLayout(false);



        }

        #endregion



        #region Standard Template Code

        /// <summary>

        /// The main entry point for the application.

        /// </summary>

        [STAThread]

        static void Main() 

        {

            Application.Run(new InkRecognition());

        }

        #endregion



        /// <summary>

        /// Event Handler from Form Load Event

        /// Setup the ink collector for collection

        /// </summary>

        /// <param name="sender">The control that raised the event.</param>

        /// <param name="e">The event arguments.</param>

        private void InkRecognition_Load(object sender, System.EventArgs e)

        {

            // Create the recognizers collection

            myRecognizers = new Recognizers();



            // Create a new ink collector that uses the group box handle

            myInkCollector = new InkCollector(gbInkArea.Handle);



            // Turn the ink collector on

            myInkCollector.Enabled = true;          

     

        }



        /// <summary>

        /// Event Handle recognize button click event

        /// </summary>

        /// <param name="sender">The control that raised the event.</param>

        /// <param name="e">The event arguments.</param>

        private void btnRecognize_Click(object sender, System.EventArgs e)

        {

            // Check to ensure that the user has at least one recognizer installed

            // Note that this is a preventive check - otherwise, an exception will

            // occur during recognition.

            if (0 == myRecognizers.Count)

            {

                MessageBox.Show("There are no handwriting recognizers installed.  You need to have at least one in order to recognize ink.");

            }

            else

            {



                // Note that the Strokes' ToString() method is a 

                // shortcut  for retrieving the best match using the  

                // default recognizer.  The same result can also be 

                // obtained using the RecognizerContext.  For an 

                // example, uncomment the following lines of code:

                // 

                // using (RecognizerContext myRecoContext = new RecognizerContext())

                // {

                //     RecognitionStatus status;

                //     RecognitionResult recoResult;

                //

                //     myRecoContext.Strokes = myInkCollector.Ink.Strokes;

                //     recoResult = myRecoContext.Recognize(out status);

                //     txtResults.SelectedText = recoResult.TopString;

                // }

                txtResults.SelectedText = myInkCollector.Ink.Strokes.ToString();



                // If the mouse is pressed, do not perform the deletion - 

                // this prevents deleting a stroke that is still being drawn

                if (!myInkCollector.CollectingInk)

                {

                    // Once the strokes have been recognized, delete them

                    myInkCollector.Ink.DeleteStrokes();



                    // Repaint the drawing area

                    gbInkArea.Refresh();

                }

            }

        }

    }

}