如何在C ++中添加环境变量？ [英] How to add environment variable in C++?

问题描述

有什么方法可以通过C ++在Windows中添加环境变量？

Is there any way I can add environment variable in Windows via C++?

它们必须添加到我的电脑 - >属性 - >高级 - >环境变量

They have to be added in "My computer->properties->advanced->environment variables"

感谢

Thank you

推荐答案

http://msdn.microsoft.com/en-us/library/ms682653%28v=VS.85%29.aspx\">MSDN ：

from MSDN :

要以编程方式添加或修改
系统环境变量，请将
添加到
HKEY_LOCAL_MACHINE \System\CurrentControlSet\Control\会话管理器\Environment 注册表项，然后
广播 WM_SETTINGCHANGE 消息
与 lParam 设置为字符串
Environment。这允许
应用程序（例如shell）到
获取更新...

To programmatically add or modify system environment variables, add them to the HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment registry key, then broadcast a WM_SETTINGCHANGE message with lParam set to the string "Environment". This allows applications, such as the shell, to pick up your updates ...

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