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Event sources (Visual Studio SDK)

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There are two sources of events: the debug engine (DE) and the Session Debug Manager (SDM). Events sent from a DE have a non-NULL engine, while events sent from the SDM have a NULL engine.

Example

The following example shows how to send the IDebugProgramCreateEvent2 from the DE to the SDM.

CDebugProgramCreateEvent* pProgramCreateEvent = new CDebugProgramCreateEvent();
if (FAILED(pCallback->Event(m_pEngine, NULL, m_pProgram, NULL, pProgramCreateEvent, IID_IDebugProgramCreateEvent2, EVENT_ASYNCHRONOUS)))
{
    // Handle failure here.
}
]

CEvent * pProgCreate = new CEvent(IID_IDebugProgramCreateEvent2, EVENT_ASYNCHRONOUS);
pProgCreate->SendEvent(pCallback, m_pEngine, (IDebugProgram2 *)this, NULL);

HRESULT CEvent::SendEvent(IDebugEventCallback2 *pCallback, IDebugEngine2 *pEngine, IDebugProgram2 *pProgram, IDebugThread2 *pThread) {
    HRESULT hr;

    if (m_dwAttrib & EVENT_STOPPING)
    {
        hr = SendStoppingEvent(pCallback, pEngine, pProgram, pThread);
    }
    else if (m_dwAttrib & EVENT_SYNCHRONOUS)
    {
        hr = SendSynchronousEvent(pCallback, pEngine, pProgram, pThread);
    }
    else
    {
        assert(m_dwAttrib == 0);
        hr = SendAsynchronousEvent(pCallback, pEngine, pProgram, pThread);
    }

    return hr;
}

HRESULT CEvent::SendAsynchronousEvent(IDebugEventCallback2 *pCallback, IDebugEngine2 *pEngine, IDebugProgram2 *pProgram, IDebugThread2 *pThread) {

    HRESULT hr;

    // Make sure the CEvent object running this code is not deleted until the code completes.
    AddRef();

    pCallback->Event(pEngine, NULL, pProgram, pThread, (IDebugEvent2 *)this, m_riid, m_dwAttrib);

    // No error recovery here.
    hr = S_OK;

    Release();
    return hr;
}

See also