Gavin Gear's Tech Blog

// Basic Shape Recognition Application

// using the InkAnalysis API, part of the

// Tablet PC Platform SDK 1.75 Input Supplement

// Gavin Gear

// 01/2007

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;

namespace ShapeReco

{

    public partial class Form1 : Form

    {

        private InkOverlay overlay_;

        public Form1()

        {

            InitializeComponent();

        }

        private void Form1_Load(object sender, EventArgs e)

        {

            this.overlay_ = new InkOverlay(this);

            this.overlay_.Enabled = true;

        }

        private void buttonRecoShapes_Click(object sender, EventArgs e)

        {

            // Create a new InkAnalyzer referencing the strokes from

            // our InkOverlay's Ink object, and synchronized to the main Form

            InkAnalyzer analyzer = new InkAnalyzer(this.overlay_.Ink, this);

            analyzer.AddStrokes(this.overlay_.Ink.Strokes);

            if (status.Successful == true)

            {

                ContextNodeCollection DrawingNodes = analyzer.FindNodesOfType(ContextNodeType.InkDrawing);

                string shapeString = "Shapes Found:" + Environment.NewLine;

                foreach (InkDrawingNode node in DrawingNodes)

                {

                    shapeString += node.GetShapeName() + Environment.NewLine;

                }

                MessageBox.Show(shapeString, "Recognized Shapes");

            }

            else

            {

                MessageBox.Show("Analysis failed, exiting");

                Application.Exit();

            }

        }

    }

}