Re: ATL Compiler Error When Adding Events

Thu, 1 May 2008 21:29:23 -0700 (PDT)
On May 1, 10:26 pm, "Igor Tandetnik" <> wrote:

<> wrote in message

I'm really new to the ATL and I running into an issue when trying to
add event capabilities to a ATL component library.

The error that I got is: error C2039: "OnTrigger": is not a member of

Show the code that calls OnTrigger. Was it generated by the wizard? For
a dispinterface, the wizard should have generated a call to
IDispatch::Invoke instead.

However the Generated file CTIXControl1.h that contains the generated
definition of the interface does not show this method

   ICTIXEvents: public IDispatch

This is normal for a dispinterface. Dispinterface methods are not real
methods, they are simply contracts on what DISPIDs are valid for
IDispatch::Invoke call and what parameters should accompany each DISPID.
With best wishes,
    Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not
necessarily a good idea. It is hard to be sure where they are going to
land, and it could be dangerous sitting under them as they fly
overhead. -- RFC 1925

Thanks very much Igor,

That is good to know, however the compiler is complaining that the
onTriger() does not exist on that interface.

The offending line is hr = pConnection->OnTrigger( Line, EventType);
which is located in the Fire_onTrigger method from the
CProxyICTIEvents class, and this method was generated by the "add
connection point" wizard from Visual Studio.

    HRESULT Fire_OnTrigger( short Line, TxEventTypes EventType)
        HRESULT hr = S_OK;
        T * pThis = static_cast<T *>(this);
        int cConnections = m_vec.GetSize();

        for (int iConnection = 0; iConnection < cConnections; iConnection++)
            CComPtr<IUnknown> punkConnection = m_vec.GetAt(iConnection);

            ICTIXEvents * pConnection = static_cast<ICTIXEvents

            if (pConnection)
                hr = pConnection->OnTrigger(Line, EventType); // <-------
offending line.
        return hr;

I'm really confused now since you said that it is normal for the
dispinterface to be be empty. do you know what could be causing this?


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