Handle Events of a Dll In VC++ Project

See more:

C#

DLL

VisualC++

event-handler

Hi,
I want to use a dll in my VC++ project. The Dll, have some functions and some events. how do i handle events of dll in my project?

name of event is: TestEvent(int i , string msg) when i call test() function of Dll, the event will be called.

The Dll is written by C# whit this code:

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

namespace My_Managed
{
    using System.Collections;

    // A delegate type for hooking up change notifications.
    public delegate void TestDelegate(int i , string msg);

    public class Class1
    {
        public event TestDelegate TestEvent;

        public virtual void OnTestEvent(int i , string msg)
        {
            if (TestEvent != null)
                OnTestEvent(i, msg);
        }
    }
}

// Interface declaration.
public interface MY_Interface
{
    bool test();
};

// Interface implementation.
public class MY_Class : MY_Interface
{
    MY_Managed.Class1 c = new MY_Managed.Class1();

    public MY_Class()
    {
    }

    public bool test()
    {
        c.OnTestEvent(99, "ok Test");
        return true;
    }
}

I register the Dll and use .tlb of it in my VC++ Project:

#import "..\..\MY_Managed.tlb" raw_interfaces_only
using namespace MY_Managed;

void CVCTestDlg::OnBnClickedButton1()
{
    try
    {
        MY_InterfacePtr pos(__uuidof(MY_Class));

        VARIANT_BOOL b;
        pos->test(&b);
    }
    catch(CException* ex)
    {
        WCHAR wch[1024];
        ex->GetErrorMessage(wch, 1024);
        AfxMessageBox(wch);
    }
}

Now, how do I Handle 'TestEvent' in VC++ Project? how do I hook it? Please help me.