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116 changes: 58 additions & 58 deletions docs/extensibility/debugger/event-sources-visual-studio-sdk.md
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Expand Up @@ -2,69 +2,69 @@
title: "Event Sources (Visual Studio SDK) | Microsoft Docs"
ms.date: "11/04/2016"
ms.topic: "conceptual"
helpviewer_keywords:
helpviewer_keywords:
- "debugging [Debugging SDK], event sources"
ms.assetid: b9ba0908-ae4c-4a64-aab1-bee453dd7a22
author: "gregvanl"
ms.author: "gregvanl"
manager: jillfra
ms.workload:
ms.workload:
- "vssdk"
---
# Event sources (Visual Studio SDK)
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.
```csharp
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
[Sending events](../../extensibility/debugger/sending-events.md)
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.

```csharp
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
[Sending events](../../extensibility/debugger/sending-events.md)