GUI Windows Form C#

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
public class InternationalText : System.Windows.Forms.Form {
    internal System.Windows.Forms.Label lblInternationalText;
    internal System.Windows.Forms.Label lblCharCode;
    private System.Windows.Forms.TextBox textBox1;
    public InternationalText() {
        this.lblInternationalText = new System.Windows.Forms.Label();
        this.lblCharCode = new System.Windows.Forms.Label();
        this.textBox1 = new System.Windows.Forms.TextBox();
        this.SuspendLayout();
        this.lblInternationalText.Location = new System.Drawing.Point(8, 64);
        this.lblInternationalText.Size = new System.Drawing.Size(288, 23);
        this.lblCharCode.Location = new System.Drawing.Point(8, 96);
        this.lblCharCode.Size = new System.Drawing.Size(88, 23);
        this.textBox1.Location = new System.Drawing.Point(8, 24);
        this.textBox1.Size = new System.Drawing.Size(288, 20);
        this.textBox1.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.textBox1_KeyPress);
        this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
        this.ClientSize = new System.Drawing.Size(304, 134);
        this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                      this.textBox1,
                                                                      this.lblCharCode,
                                                                      this.lblInternationalText});
        this.MaximizeBox = false;
        this.ResumeLayout(false);
    }
    [STAThread]
    static void Main() {
        Application.Run(new InternationalText());
    }
    protected override void OnInputLanguageChanged(InputLanguageChangedEventArgs e) {
        MessageBox.Show(e.InputLanguage.Culture.Name);
    }
    protected override void OnInputLanguageChanging(InputLanguageChangingEventArgs e) {
        MessageBox.Show(e.InputLanguage.Culture.Name);
    }
    private void textBox1_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) {
        lblInternationalText.Text += e.KeyChar.ToString();
        lblCharCode.Text = ((int)e.KeyChar).ToString();
    }
}