For the latest documentation on Visual Studio 2017 RC, see Visual Studio 2017 RC Documentation.

Lets you pass a locale identifier to a function.


The lcid C++ attribute implements the functionality of the lcid MIDL attribute. If you want to implement locale for a library block, use the lcid=lcid parameter to the module attribute.

// cpp_attr_ref_lcid.cpp  
// compile with: /LD  
#include <unknwn.h>  
typedef long HRESULT;  
[dual, uuid("2F5F63F1-16DA-11d2-9E7B-00C04FB926DA")]  
__interface IStatic {  
   HRESULT MyFunc([in, lcid] long LocaleID, [out, retval] BSTR * ReturnVal);  

Attribute Context

Applies toInterface parameter
Required attributesNone
Invalid attributesNone

For more information, see Attribute Contexts.

IDL Attributes
Parameter Attributes
Attributes Samples