| title | AsyncBase::Start Method | Microsoft Docs | |
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| ms.custom | ||
| ms.date | 11/04/2016 | |
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| ms.tgt_pltfrm | ||
| ms.topic | reference | |
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| ms.assetid | 67405c9d-0d1a-4c1e-8ea4-6ba01c1f90d9 | |
| caps.latest.revision | 3 | |
| author | mikeblome | |
| ms.author | mblome | |
| manager | ghogen |
Starts the asynchronous operation.
STDMETHOD(
Start
)(void);
S_OK if the operation starts or is already started; otherwise, E_ILLEGAL_STATE_CHANGE.
Start() is a default implementation of IAsyncInfo::Start, and does no actual work. To actually start an asynchronous operation, override the OnStart() pure virtual method.
Header: async.h
Namespace: Microsoft::WRL