Hello,

I followed the instructions on
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/c
allnetfrcom.asp
to call .NET class methods from the ActiveX Test Container
(tstcon32.exe) and I can load my control, but there aren't any methods
I can invoke.

However, in ActiveXplorer I can view the methods on the component
(screenshot:
http://idaho.cybernited.be/upload/televic/ActiveXplorer.JPG), but this
tool doesn't support invoking them.

Am I forgetting somehting ?

Any help appreciated.

Here's my code:

the interface:

using System;
using System.Collections.Generic;
using System.Text;

namespace COMVisibleMethods
{
   public interface ICOMCallable
   {
       int SumOfTwo(int a, int b);
       string GetCurrentDateTime();
   }
}

the code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Reflection;
using Microsoft.Win32;

namespace COMVisibleMethods
{
   public partial class Math : UserControl, ICOMCallable
   {
       public Math()
       {
           InitializeComponent();
       }

       public string GetCurrentDateTime()
       {
           return DateTime.Now.ToLongDateString() + " " +
DateTime.Now.ToLongTimeString();
       }

       public int SumOfTwo(int a, int b)
       {
           return a + b;
       }

       [ComRegisterFunction()]
       public static void RegisterClass(string key)
       {
           // Strip off HKEY_CLASSES_ROOT\ from the passed key as I
don't need it
           StringBuilder sb = new StringBuilder(key);
           sb.Replace(@"HKEY_CLASSES_ROOT\", "");

           // Open the CLSID\{guid} key for write access
           RegistryKey k =
Registry.ClassesRoot.OpenSubKey(sb.ToString(), true);

           // And create the 'Control' key - this allows it to show
up in
           // the ActiveX control container
           RegistryKey ctrl = k.CreateSubKey("Control");
           ctrl.Close();

           // Next create the CodeBase entry - needed if not string
named and GACced.
           RegistryKey inprocServer32 =
k.OpenSubKey("InprocServer32", true);
           inprocServer32.SetValue("CodeBase",
Assembly.GetExecutingAssembly().CodeBase);
           inprocServer32.Close();

           // Finally close the main key
           k.Close();
       }

       [ComUnregisterFunction()]
       public static void UnregisterClass(string key)
       {
           StringBuilder sb = new StringBuilder(key);
           sb.Replace(@"HKEY_CLASSES_ROOT\", "");

           // Open HKCR\CLSID\{guid} for write access
           RegistryKey k =
Registry.ClassesRoot.OpenSubKey(sb.ToString(), true);

           // Delete the 'Control' key, but don't throw an exception
if it does not exist
           k.DeleteSubKey("Control", false);

           // Next open up InprocServer32
           RegistryKey inprocServer32 =
k.OpenSubKey("InprocServer32", true);

           // And delete the CodeBase key, again not throwing if
missing
           k.DeleteSubKey("CodeBase", false);

           // Finally close the main key
           k.Close();
       }
   }
}

-
JB