asyncbase-close-method.md

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AsyncBase::Close Method | Microsoft Docs		11/04/2016			cpp-windows		reference	async/Microsoft::WRL::AsyncBase::Close	C++	Close method	a52b1124-754b-4393-b491-64aae0c22f1c	3	mikeblome	mblome	ghogen

AsyncBase::Close Method

Closes the asynchronous operation.

Syntax

STDMETHOD(  
   Close  
)(void) override;  

Return Value

S_OK if the operation closes or is already closed; otherwise, E_ILLEGAL_STATE_CHANGE.

Remarks

Close() is a default implementation of IAsyncInfo::Close, and does no actual work. To actually close an asynchronous operation, override the OnClose() pure virtual method.

Requirements

Header: async.h

Namespace: Microsoft::WRL

See Also

AsyncBase Class