通过

Event sources (Visual Studio SDK)

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Applies to: yesVisual Studio noVisual Studio for Mac

Note

This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here

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