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title restricted | Microsoft Docs
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ms.date 11/04/2016
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ms.technology
cpp-windows
ms.tgt_pltfrm
ms.topic language-reference
f1_keywords
vc-attr.restricted
dev_langs
C++
helpviewer_keywords
restricted attribute
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author mikeblome
ms.author mblome
manager ghogen
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restricted

Specifies that a member of a module, interface, or dispinterface cannot be called arbitrarily.

Syntax

  
      [ restricted(  
   interfaces  
) ]

Parameters

interfaces
One or more interfaces that may not be called arbitrarily on a COM object. This parameter is only valid when applied to a class.

Remarks

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

Example

The following code shows how to use the restricted attribute:

// cpp_attr_ref_restricted.cpp  
// compile with: /LD  
#include "windows.h"  
#include "unknwn.h"  
[module(name="MyLib")];  
  
[object, uuid("00000000-0000-0000-0000-000000000001")]  
__interface a  
{  
};  
  
[object, uuid("00000000-0000-0000-0000-000000000002")]  
__interface b  
{  
};  
  
[coclass, restricted(a,b), uuid("00000000-0000-0000-0000-000000000003")]  
class c : public a, public b  
{  
};

Requirements

Attribute Context
Applies to Interface method, interface, class, struct
Repeatable No
Required attributes coclass (when applied to class or struct)
Invalid attributes None

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

See Also

IDL Attributes
Interface Attributes
Method Attributes