CODEWITHSUNDEEP
c++comatl
rsp
rsp

Reputation: 649

Getting compile error in atlbase 'GetThreadLocale': identifier not found

I am trying to build some COM code from this article - https://www.codeproject.com/Articles/9190/Understanding-The-COM-Single-Threaded-Apartment-Pa I am trying to use code in \SimpleCOMObject2 folder. I am not sure how to use legacy dsw project files so I have created new project in VS 2022 and added all source files to it.

It is giving weird error -

1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.36.32532\atlmfc\include\atlbase.h(3462,15): error C3861: 'GetThreadLocale': identifier not found
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.36.32532\atlmfc\include\atlbase.h(3462,30): message : 'GetThreadLocale': function declaration must be available as none of the arguments depend on a template parameter
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.36.32532\atlmfc\include\atlbase.h(3496,2): message : see reference to class template instantiation 'ATL::CAtlDllModuleT<T>' being compiled

Project contains following files that I think are creating problem.

stdafx.h

// stdafx.h : include file for standard system include files,
//      or project specific include files that are used frequently,
//      but are changed infrequently

#if !defined(AFX_STDAFX_H__E44A71C1_F36D_4C5D_8FA0_7FCCA7BD0E95__INCLUDED_)
#define AFX_STDAFX_H__E44A71C1_F36D_4C5D_8FA0_7FCCA7BD0E95__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#define STRICT
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0400
#endif
#define _ATL_APARTMENT_THREADED

#include <Windows.h>
#include <winnls.h>
#include <atlbase.h>
//You may derive a class from CComModule and use it if you want to override
//something, but do not change the name of _Module
extern CComModule _Module;
#include <atlcom.h>

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_STDAFX_H__E44A71C1_F36D_4C5D_8FA0_7FCCA7BD0E95__INCLUDED)

stdafx.cpp

#include "stdafx.h"

#ifdef _ATL_STATIC_REGISTRY
#include <statreg.h>
#include <statreg.cpp>
#endif

SimpleCOMObject2.cpp

#include "stdafx.h"
#include <initguid.h>
#include "SimpleCOMObject2.h"

#include "SimpleCOMObject2_impl.h"

CComModule _Module;

...

STDAPI DllCanUnloadNow(void)
{
    return (_Module.GetLockCount() == 0) ? S_OK : S_FALSE;
}

...

Upvotes: 0

Views: 720

Answers (1)

selbie
selbie

Reputation: 104464

In stdafx.h. Remove this line:

#define _WIN32_WINNT 0x0400

The default value of 0x0A00 will get picked up naturally after you do that. And then GetThreadLocale will not be excluded by the preprocessor when winnls.h is included.

Upvotes: 2

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