windows C#：在电源计划之间切换
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C# : Switch between power plans
提问by BOSS
i am creating an API and i want to switch between power plans
我正在创建一个 API，我想在电源计划之间切换
[Balanced , High performance , Power saver]
[平衡，高性能，省电]
, my problem isn`t on the code , coding is easy , but i want to know where can i find these power planes .exe files or even values in registry to modify it
，我的问题不在于代码，编码很容易，但我想知道在哪里可以找到这些电源平面 .exe 文件甚至注册表中的值来修改它
回答by RB.
Raymond Chen's latest post happens to be about this, and he suggests the following:
Raymond Chen的最新帖子恰好是关于这个的，他提出以下建议：
If you are using Vista or above, from the command line, run :
如果您使用的是 Vista 或更高版本，请从命令行运行：
powercfg -aliases
However, this doesn't work for me as -aliasesis not a valid switch on Windows XP.
但是，这对我不起作用，因为-aliases它不是 Windows XP 上的有效开关。
EDIT: Or, you can just use this list of helpful GUIDs!
编辑：或者，您可以使用这个有用的 GUID 列表！
回答by Till
While you could certainly use an external tool like powercfg, you could just as well use the Power Management API
虽然您当然可以使用像 powercfg 这样的外部工具，但您也可以使用电源管理 API
http://msdn.microsoft.com/en-us/library/aa372711%28v=VS.85%29.aspx
http://msdn.microsoft.com/en-us/library/aa372711%28v=VS.85%29.aspx
Or Windows Management Instrumenation (WMI)
或 Windows 管理规范 (WMI)
http://msdn.microsoft.com/en-us/library/dd904518%28v=VS.85%29.aspx
http://msdn.microsoft.com/en-us/library/dd904518%28v=VS.85%29.aspx
回答by Hans Passant
You'll find them in the winnt.h SDK header file. Stored in c:\program files\microsoft sdks\windows\v6.0a\include for VS2008, v7.0a for VS2010. Search for "GUID_MAX_POWER_SAVINGS" to find this:
您将在 winnt.h SDK 头文件中找到它们。存储在 c:\program files\microsoft sdks\windows\v6.0a\include for VS2008, v7.0a for VS2010。搜索“GUID_MAX_POWER_SAVINGS”来找到这个：
// =========================================
// Define GUIDs which represent well-known power schemes
// =========================================
//
//
// Maximum Power Savings - indicates that very aggressive power savings measures will be used to help
// stretch battery life.
//
// {a1841308-3541-4fab-bc81-f71556f20b4a}
//
DEFINE_GUID( GUID_MAX_POWER_SAVINGS, 0xA1841308, 0x3541, 0x4FAB, 0xBC, 0x81, 0xF7, 0x15, 0x56, 0xF2, 0x0B, 0x4A );
//
// No Power Savings - indicates that almost no power savings measures will be used.
//
// {8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c}
//
DEFINE_GUID( GUID_MIN_POWER_SAVINGS, 0x8C5E7FDA, 0xE8BF, 0x4A96, 0x9A, 0x85, 0xA6, 0xE2, 0x3A, 0x8C, 0x63, 0x5C );
//
// Typical Power Savings - indicates that fairly aggressive power savings measures will be used.
//
// {381b4222-f694-41f0-9685-ff5bb260df2e}
//
DEFINE_GUID( GUID_TYPICAL_POWER_SAVINGS, 0x381B4222, 0xF694, 0x41F0, 0x96, 0x85, 0xFF, 0x5B, 0xB2, 0x60, 0xDF, 0x2E );
回答by Andy
Here is an example of Power Management API usage: PowerManager.cs
以下是电源管理 API 使用示例：PowerManager.cs
