asyncbase-start-method.md

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AsyncBase::Start Method | Microsoft Docs		11/04/2016			cpp-windows		reference	async/Microsoft::WRL::AsyncBase::Start	C++	Start method	67405c9d-0d1a-4c1e-8ea4-6ba01c1f90d9	3	mikeblome	mblome	ghogen

AsyncBase::Start Method

Starts the asynchronous operation.

Syntax

STDMETHOD(  
   Start  
)(void);  

Return Value

S_OK if the operation starts or is already started; otherwise, E_ILLEGAL_STATE_CHANGE.

Remarks

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.

Requirements

Header: async.h

Namespace: Microsoft::WRL

See Also

AsyncBase Class