Hi everyone,

I have quite a big problem here : I try to create a C++ COM add-in fo
Outlook 2000. My goal is to add an information to a mail, then to sig
the mail in a special way before it is sent.

I achieved adding the header to the mail, but I can't manage to catc
the event SendItem. Someone could help me please ?

There is parts of my code :

// Connect.h : Declaration of the CConnect

#pragma once
#include "resource.h"       // main symbols

extern _ATL_FUNC_INFO OnClickButtonInfo;
extern _ATL_FUNC_INFO OnMailSendInfo;

// CConnect
class ATL_NO_VTABLE CConnect :
    public CComObjectRootEx<CComSingleThreadModel>,
    public CComCoClass<CConnect, &CLSID_Connect>,
   
    public IDispatchImpl<AddInDesignerObjects::_IDTExtensibility2
&AddInDesignerObjects::IID__IDTExtensibility2
&AddInDesignerObjects::LIBID_AddInDesignerObjects, 1, 0>,
    public IDispEventSimpleImpl<1, CConnect
&__uuidof(Office::_CommandBarButtonEvents)>,
    public IDispEventSimpleImpl<2, CConnect
&__uuidof(Outlook::ApplicationEvents)>
{
public:
    typedef IDispEventSimpleImpl<1, CConnect
&__uuidof(Office::_CommandBarButtonEvents)> CommnandButton1Events;
    typedef IDispEventSimpleImpl<2, CConnect
&__uuidof(Outlook::ApplicationEvents)> Application2Events;
    CConnect()
    {
    }

DECLARE_REGISTRY_RESOURCEID(IDR_ADDIN)
DECLARE_NOT_AGGREGATABLE(CConnect)

BEGIN_COM_MAP(CConnect)
    COM_INTERFACE_ENTRY(IDispatch)
    COM_INTERFACE_ENTRY(AddInDesignerObjects::IDTExtensibility2)
END_COM_MAP()

BEGIN_SINK_MAP(CConnect)
    SINK_ENTRY_INFO(
        1,
        __uuidof(Office::_CommandBarButtonEvents),
        0x01,
        OnClickButton,
        &OnClickButtonInfo
    )
    SINK_ENTRY_INFO(
        2,
        __uuidof(Outlook::ApplicationEvents),
        0x01,
        OnMailSend,
        &OnMailSendInfo
    )
END_SINK_MAP()

    DECLARE_PROTECT_FINAL_CONSTRUCT()

    HRESULT FinalConstruct()
    {
        return S_OK;
    }
   
    void FinalRelease()
    {
    }

public:
    //IDTExtensibility2 implementation:
    STDMETHOD(OnConnection)(IDispatch * Application
AddInDesignerObjects::ext_ConnectMode ConnectMode, IDispatc
*AddInInst, SAFEARRAY **custom);
    STDMETHOD(OnDisconnection)(AddInDesignerObjects::ext_DisconnectMod
RemoveMode, SAFEARRAY **custom );
    STDMETHOD(OnAddInsUpdate)(SAFEARRAY **custom );
    STDMETHOD(OnStartupComplete)(SAFEARRAY **custom );
    STDMETHOD(OnBeginShutdown)(SAFEARRAY **custom );

    void __stdcall OnClickButton(IDispatch * Ctrl,VARIANT_BOOL
CancelDefault);
    void __stdcall OnMailSend(IDispatch * Ctrl,VARIANT_BOOL
CancelDefault);

   
private :
    CComQIPtr <Outlook::_Application> spApp;
    IDispatch *spApplication;
    CComPtr<Office::_CommandBarButton> m_spButton;
};

OBJECT_ENTRY_AUTO(__uuidof(Connect), CConnect)

////////////
and there is the cpp file :

// Connect.cpp : Implementation of CConnect
#include "stdafx.h"
#include "AddIn.h"
#include "Connect.h"

#include "fenetreLabel.h"

extern CAddInModule _AtlModule;

_ATL_FUNC_INFO OnClickButtonInf
={CC_STDCALL,VT_EMPTY,2,{VT_DISPATCH,VT_BYREF | VT_BOOL}};
_ATL_FUNC_INFO OnMailSendInf
={CC_STDCALL,VT_EMPTY,2,{VT_DISPATCH,VT_BYREF | VT_BOOL}};

// When run, the Add-in wizard prepared the registry for the Add-in.
// At a later time, if the Add-in becomes unavailable for reasons suc
as:
//   1) You moved this project to a computer other than which is wa
originally created on.
//   2) You chose 'Yes' when presented with a message asking if yo
wish to remove the Add-in.
//   3) Registry corruption.
// you will need to re-register the Add-in by building th
MyAddin21Setup project
// by right clicking the project in the Solution Explorer, the
choosing install.

// CConnect
STDMETHODIMP CConnect::OnConnection(IDispatch *pApplication
AddInDesignerObjects::ext_ConnectMode ConnectMode, IDispatc
*pAddInInst, SAFEARRAY ** /*custom*/ )
{
    spApplication = pApplication;

    CComPtr <Office::_CommandBars> spCmdBars;
    CComPtr <Office::CommandBar> spCmdBar;
   

    CComQIPtr <Outlook::_Application> spApp(pApplication);
    ATLASSERT(spApp);

    CComPtr<Outlook::_Explorer> spExplorer;
    spExplorer = spApp->ActiveExplorer();
   
    HRESULT hr = spExplorer->get_CommandBars(&spCmdBars);
    if (FAILED(hr)) {
        return hr;
    }

    ATLASSERT(spCmdBars);

    CComVariant vName("My nice add-in");
    CComPtr <Office::CommandBar> spNewCmdBar;

    CComVariant vPos(1);

    CComVariant vTemp(VARIANT_TRUE);
    CComVariant vEmpty(DISP_E_PARAMNOTFOUND, VT_ERROR);

    spCmdBars->Add(vName, vPos, vEmpty, vTemp, &spNewCmdBar);
   

    CComPtr <Office::CommandBarControls> spBarControls;
    spNewCmdBar->get_Controls(&spBarControls);
    ATLASSERT(spBarControls);

    CComVariant vToolBarType(1);
    CComVariant vShow(VARIANT_TRUE);

    CComPtr <Office::CommandBarControl> spNewBar;
   
    spBarControls->Add(vToolBarType, vEmpty, vEmpty, vEmpty, vShow,
&spNewBar);
    ATLASSERT(spNewBar);

    CComQIPtr <Office::_CommandBarButton> spCmdButton(spNewBar);
    ATLASSERT(spCmdButton);

    HBITMAP hBmp = (HBITMAP)::LoadImage(_AtlModule.GetResourceInstance(),
MAKEINTRESOURCE(IDB_BITMAP_ICONE_LABEL), IMAGE_BITMAP, 0, 0,
LR_LOADMAP3DCOLORS);

    ::OpenClipboard(NULL);
    ::EmptyClipboard();
    ::SetClipboardData(CF_BITMAP, (HANDLE)hBmp);
    ::CloseClipboard();
    ::DeleteObject(hBmp);

    spCmdButton->put_Style(Office::msoButtonIconAndCaption);

    hr = spCmdButton->PasteFace();
    if (FAILED(hr)) {
        return hr;
    }

    spCmdButton->put_Visible(VARIANT_TRUE);
    spCmdButton->put_Caption(OLESTR("Mail with header"));
    spCmdButton->put_Enabled(VARIANT_TRUE);
    spCmdButton->put_TooltipText(OLESTR("Adds a special header to a
mail"));
    spCmdButton->put_Tag(OLESTR("Marked mail !!"));
   
    spNewCmdBar->put_Visible(VARIANT_TRUE);

    m_spButton = spCmdButton;
   
       
    CommnandButton1Events::DispEventAdvise((IDispatch*)m_spButton);

    ////////////////////////////
   
    Application2Events::DispEventAdvise((IDispatch*)spApp);
   

    return S_OK;
}

STDMETHODIMP
CConnect::OnDisconnection(AddInDesignerObjects::ext_DisconnectMode
/*RemoveMode*/, SAFEARRAY ** /*custom*/ )
{

    CommnandButton1Events::DispEventUnadvise((IDispatch*)m_spButton);
    Application2Events::DispEventUnadvise((IDispatch*)spApp);

    return S_OK;
}

STDMETHODIMP CConnect::OnAddInsUpdate (SAFEARRAY ** /*custom*/ )
{
    return S_OK;
}

STDMETHODIMP CConnect::OnStartupComplete (SAFEARRAY ** /*custom*/ )
{
    return S_OK;
}

STDMETHODIMP CConnect::OnBeginShutdown (SAFEARRAY ** /*custom*/ )
{
    return S_OK;
}

void __stdcall CConnect::OnClickButton(IDispatch* Ctrl,VARIANT_BOOL *
CancelDefault) {
   
    PluginOutlookCpp::fenetreLabel * fLabel;
    fLabel = new PluginOutlookCpp::fenetreLabel(spApplication);
   
    fLabel->ouvrir();
   
   
   
}

void __stdcall CConnect::OnMailSend(IDispatch* Ctrl,VARIANT_BOOL *
CancelDefault) {
   
    MessageBox(NULL, "Mail is being sent !","Advertisement", MB_OK);
   
   
   
}

Thanks a lot for your help !!!