ref-cpp.md

title	ms.date	f1_keywords	helpviewer_keywords	ms.assetid
ref (C++ COM Attribute)	10/02/2018	vc-attr.ref	ref attribute	67e82d3e-07d9-4ef8-bf2b-0a4491d12557

ref (C++)

Identifies a reference pointer.

Syntax

[ref]

Remarks

The ref C++ attribute has the same functionality as the ref MIDL attribute.

Example

The following code shows how to use the ref attribute:

// cpp_attr_ref_ref.cpp
// compile with: /LD
#include <windows.h>
[module(name="ATLFIRELib")];
[dispinterface, uuid("00000000-0000-0000-0000-000000000001")]
__interface IFireTabCtrl
{
   [id(1), unique] char * GetFirstName([in, ref] char * pszFullName );
};

Requirements

Attribute Context

Applies to	typedef, interface parameter, interface method
Repeatable	No
Required attributes	None
Invalid attributes	None

For more information about the attribute contexts, see Attribute Contexts.

See also

IDL Attributes
Typedef, Enum, Union, and Struct Attributes
Parameter Attributes