Re: How to advise in C++ on an event in c# ?

I created an interface in c# and I tryied to import the tlb in c++ and to
advise me on the event in the interface.

I use the following sample but it's base on a VB client.

http://msdn2.microsoft.com/en-us/library/dd8bf0x3.aspx

Here is the code c# of the interface
using System;
using System.Runtime.InteropServices;
namespace EventSource
{
   public delegate void ClickDelegate(int x, int y);
   public delegate void ResizeDelegate();
   public delegate void PulseDelegate();

   // Step 1: Defines an event sink interface (ButtonEvents) to be
   // implemented by the COM sink.
   [GuidAttribute("1A585C4D-3371-48dc-AF8A-AFFECC1B0967") ]
   [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIDispatch)]
   public interface ButtonEvents
   {
       void Click(int x, int y);
       void Resize();
       void Pulse();
   }
   // Step 2: Connects the event sink interface to a class
   // by passing the namespace and event sink interface
   // ("EventSource.ButtonEvents, EventSrc").
   [ComSourceInterfaces(GetType(ButtonEvents))]
   public class Button
   {
       public event ClickDelegate Click;
       public event ResizeDelegate Resize;
       public event PulseDelegate Pulse;

       public Button()
       {
       }
       public void CauseClickEvent(int x, int y)
       {
           Click(x, y);
       }
       public void CauseResizeEvent()
       {
           Resize();
       }
       public void CausePulse()
       {
           Pulse();
       }
   }
}

I need to follow the same step as the VB code bellow but in C++.

' COM client (event sink)
' This Visual Basic 6.0 client creates an instance of the Button class and
' implements the event sink interface. The WithEvents directive
' registers the sink interface pointer with the source.
Public WithEvents myButton As Button

Private Sub Class_Initialize()
   Dim o As Object
   Set o = New Button
   Set myButton = o
End Sub
' Events and methods are matched by name and signature.
Private Sub myButton_Click(ByVal x As Long, ByVal y As Long)
   MsgBox "Click event"
End Sub

Private Sub myButton_Resize()
   MsgBox "Resize event"
End Sub

Private Sub myButton_Pulse()
End Sub

In the interface ButtonEvents, i try to use event declaration instead of
void method declaration and the generated file created by the tlb include
methos wrapper like Click_add and Click_remove but i don't know how to use
it.

Thanks you