windows 如何以编程方式启用“允许此设备唤醒计算机”？
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How do I enable "Allow this device to wake the computer" programmatically?
提问by Harry Johnston
On some computers, the network adapters are, by default, configured with the "allow this device to wake the computer" option turned off. As a result, Wake on LAN won't work.
在某些计算机上，默认情况下，网络适配器配置为关闭“允许此设备唤醒计算机”选项。因此，局域网唤醒将不起作用。
I need to turn this option back on, but I can't do it by hand - too many computers! So, I need to be able to do it via an API or with a script.
我需要重新打开此选项，但我无法手动完成 - 计算机太多了！所以，我需要能够通过 API 或脚本来做到这一点。
(Note: this is not a duplicate of How to Enable Wake On LAN programmaticallybecause that question is about the BIOS setting whereas this one is about the operating system setting.)
（注意：这不是如何以编程方式启用 LAN 唤醒的副本，因为该问题与 BIOS 设置有关，而此问题与操作系统设置有关。）
I have an answer already using a batch script, but alternative solutions would be very welcome, especially if they use an API.
我已经有一个使用批处理脚本的答案，但是非常欢迎替代解决方案，尤其是如果他们使用 API。
回答by Harry Johnston
I found a solution on The Old New Thing. The powercfgcommand allows you to manipulate power settings, and in particular you can use the -deviceenablewakeand -devicedisablewaketo turn on and off the "Allow this device to wake the computer" option.
我在The Old New Thing上找到了解决方案。该powercfg命令允许您操作电源设置，特别是您可以使用-deviceenablewake和-devicedisablewake打开和关闭“允许此设备唤醒计算机”选项。
You can see which devices are capable of doing this with this command:
您可以使用以下命令查看哪些设备能够执行此操作：
powercfg -devicequery wake_from_any
You can see which devices have the option currently enabled using:
您可以使用以下方法查看哪些设备当前启用了该选项：
powercfg -devicequery wake_armed
Putting it all together, this is the batch script I've just started using to enable Wake on LAN:
总而言之，这是我刚开始使用的批处理脚本来启用 LAN 唤醒：
powercfg -devicequery wake_from_any | findstr /i "network ethernet" >adapters.txt
for /F "tokens=*" %%i in (adapters.txt) do powercfg -deviceenablewake "%%i"
powercfg -devicequery wake_armed | findstr /i "network ethernet" || goto :failed
In this case, I've chosen to enable the option on all valid devices whose name contains the word "network" or the word "ethernet"; in some situations, of course, you might prefer to be more selective about which device(s) you enable.
在这种情况下，我选择在名称包含“网络”或“以太网”一词的所有有效设备上启用该选项；当然，在某些情况下，您可能更愿意选择启用哪些设备。
