如何正确地包含windows.h并将最低版本设置为XP [英] How to properly include windows.h and set minimum version to XP

问题描述

我正在构建一个C ++ DLL，而且我在这个主要的DLL .cpp 文件的顶部。这当前正在导致警告警告C4005：'_WIN32_WINNT'：宏重定义。我做错了什么？

I'm currently building a C++ DLL, and I have this at the top of the main DLL .cpp file. This currently is causing the warning "Warning C4005: '_WIN32_WINNT' : macro redefinition". What have I done wrong?

我需要包含 windows.h ， SDKDDKVer。 h 并将最低Windows版本设置为XP。如何更正我的代码？

I need to include windows.h, SDKDDKVer.h and set the minimum windows version to XP. How do I correct my code?

// System Includes
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <d3d9.h>

// Windows Version
#define _WIN32_WINNT _WIN32_WINNT_WINXP
#include <SDKDDKVer.h>

推荐答案

您应该首先包含SDK的东西：

You should include the SDK stuff first:

// Windows Version
#define _WIN32_WINNT 0x0501     // _WIN32_WINNT_WINXP
#include <SDKDDKVer.h>

// System Includes
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <d3d9.h>

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