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

namespace WindowsForms
{
    public partial class Form1 : Form
    {
        SpeechRecognitionEngine recEngine = new SpeechRecognitionEngine();
        public Form1()
        {
            InitializeComponent();
        }

        private void btnEnable_Click(object sender, EventArgs e)
        {

            recEngine.RecognizeAsync(RecognizeMode.Multiple);
            btnDisable.Enabled = true;

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            Choices preCmd = new Choices();
            preCmd.Add(new string[] { "name", "age" });

            GrammarBuilder gb = new GrammarBuilder();
            gb.Append(preCmd);
            Grammar gr = new Grammar(gb);
            recEngine.LoadGrammarAsync(gr);
            recEngine.SetInputToDefaultAudioDevice();
            recEngine.SpeechHypothesized += RecEngine_SpeechHypothesized;


        }

        private void RecEngine_SpeechHypothesized(object sender, SpeechHypothesizedEventArgs e)
        {
            switch (e.Result.Text)
            {
                case "name":
                    txtList.Text += "\nDarren";
                    break;
                case "age":
                    txtList.Text += "\n永遠(yuǎn)21";
                    break;
                default:
                    break;
            }
        }

        private void btnDisable_Click(object sender, EventArgs e)
        {
            recEngine.RecognizeAsyncStop();
            btnDisable.Enabled = false;
        }
    }
}