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com-ptr-t-attach.md

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description Learn more about: _com_ptr_t::Attach
title _com_ptr_t::Attach
ms.date 11/04/2016
f1_keywords
_com_ptr_t::Attach
helpviewer_keywords
COM interfaces, attach pointer
Attach method [C++]
ms.assetid 94c18e0a-06be-4ca7-bdaf-cd54ec0a645e

_com_ptr_t::Attach

Microsoft Specific

Encapsulates a raw interface pointer of this smart pointer's type.

Syntax

void Attach( Interface* pInterface ) throw( );
void Attach( Interface* pInterface, bool fAddRef ) throw( );

Parameters

pInterface
A raw interface pointer.

fAddRef
If it is true, then AddRef is called. If it is false, the _com_ptr_t object takes ownership of the raw interface pointer without calling AddRef.

Remarks

  • Attach( pInterface ) AddRef is not called. The ownership of the interface is passed to this _com_ptr_t object. Release is called to decrement the reference count for the previously encapsulated pointer.

  • Attach( pInterface , fAddRef ) If fAddRef is true, AddRef is called to increment the reference count for the encapsulated interface pointer. If fAddRef is false, this _com_ptr_t object takes ownership of the raw interface pointer without calling AddRef. Release is called to decrement the reference count for the previously encapsulated pointer.

END Microsoft Specific

See also

_com_ptr_t Class