CRÉATION D'UN ACTIVEX EN UTILSANT UN USERCONTROL DOTNET CSHARP

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;

// Add references
using System.Runtime.InteropServices;
using System.IO;
using System.Reflection;
using Microsoft.Win32;


namespace CsharpWindowsActiveX
{

    [ProgId("CsharpWindowsActiveX.ActiveXUserControl")]
    [ClassInterface(ClassInterfaceType.AutoDual), ComSourceInterfaces(typeof(UserControlEvents))]
    public partial class ActiveXUserControl : UserControl
    {
        public ActiveXUserControl()
        {
            InitializeComponent();
        }

        // register COM ActiveX object
        [ComRegisterFunction()]
        public static void RegisterClass(string key)
        {
            StringBuilder skey = new StringBuilder(key);
            skey.Replace(@"HKEY_CLASSES_ROOT\", "");

            // récupérer GUID depuis ProgID="CsharpWindowsActiveX.ActiveXUserControl"
            Type myType1 = Type.GetTypeFromProgID("CsharpWindowsActiveX.ActiveXUserControl");
            Console.WriteLine("ProgID=CsharpWindowsActiveX.ActiveXUserControl GUID={0}.", myType1.GUID);

            // ecrire GUID dans un fichier txt
            TextWriter tw;
            tw = File.CreateText("guid.txt");
            tw.WriteLine(skey.ToString());
            tw.WriteLine(myType1.GUID.ToString());
            tw.Close();

            RegistryKey regKey = Registry.ClassesRoot.OpenSubKey(skey.ToString(), true);
            RegistryKey ctrl = regKey.CreateSubKey("Control");
            ctrl.Close();
            RegistryKey inprocServer32 = regKey.OpenSubKey("InprocServer32", true);
            inprocServer32.SetValue("CodeBase", Assembly.GetExecutingAssembly().CodeBase);
            inprocServer32.Close();
            regKey.Close();
        }


        // Unregister COM ActiveX object
        [ComUnregisterFunction()]
        public static void UnregisterClass(string key)
        {
            StringBuilder skey = new StringBuilder(key);
            skey.Replace(@"HKEY_CLASSES_ROOT\", "");
            RegistryKey regKey = Registry.ClassesRoot.OpenSubKey(skey.ToString(), true);
            regKey.DeleteSubKey("Control", false);
            RegistryKey inprocServer32 = regKey.OpenSubKey("InprocServer32", true);
            regKey.DeleteSubKey("CodeBase", false);
            regKey.Close();
        }


        // ActiveX properties (Get/Set) //////////////////////////////////////////////////////////////////
        private int ptextVal;

        public int TextVal
        {
            get 
            {
                ptextVal = (int)(numericUpDown1.Value);
                return ptextVal; 
            }
            set
            {
                ptextVal = value;
                numericUpDown1.Value = ptextVal;
            }
        }




        // ActiveX methods/functions //////////////////////////////////////////////////////////////////
        public interface ICOMCallable
        {
            int GetTextBoxValue();
        }

        public int GetTextBoxValue()
        {
            int i = (int)(numericUpDown1.Value);
            MessageBox.Show("ActiveX method: GetTextBoxValue " + i.ToString());
            return (i);
        }


        // Eventhandler interface  //////////////////////////////////////////////////////////////////
        public delegate void ControlEventHandler(int NumVal);

        [Guid("0A415E38-372F-45fb-813B-D9558C787EA0")]
        [InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]
        public interface UserControlEvents
        {
            [DispId(0x60020001)]
            void OnButtonClick(int NumVal);
        }

        public event ControlEventHandler OnButtonClick;


        private void buttonOK_Click(object sender, EventArgs e)
        {
            int NumVal;

            if (OnButtonClick != null)
            {
                NumVal = (int)(numericUpDown1.Value);
                OnButtonClick(NumVal);
            }
        }

                       
        // //////////////////////////////////////////////////////////////////



 
    }
}