取得鍵盤輸入文字

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.Windows;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {         
            // Create a TextBox control.
            TextBox tb = new TextBox();
            this.Controls.Add(tb);
            //將此改為windows視窗物件
            //https://msdn.microsoft.com/zh-tw/library/system.windows.window(v=vs.110).aspx
            tb.KeyPress += new KeyPressEventHandler(keypressed);
        }
        private void keypressed(Object o, KeyPressEventArgs e)
        {
            //判斷按鍵的 Keychar
            char Key_Char = e.KeyChar;
            MessageBox.Show(((int)(Key_Char)).ToString());
        }


    }
}