如何检查NumLock是否启用 [英] How to check if NumLock is enabled

问题描述

最近我遇到了一个问题，笔记本电脑在某些时候(例如退出睡眠模式时)自动禁用了 NumLock.这促使我寻找以编程方式检查 NumLock 是否关闭的方法，如果关闭，则将其打开.

我正在寻找实现这一目标的最佳方式.我想在发生某些事件时运行脚本，例如登录笔记本电脑时.我计划通过计划任务执行此操作，我更喜欢使用 PowerShell 而不是 VBScript，但我很乐意使用任何可行的方法.

解决方案

在 PowerShell 中，[console]::NumberLock 是一个只读属性，如果启用了 NumLock，它将评估为 true.

我最终编写的脚本如下:

if(-not [console]::NumberLock){$w = New-Object -ComObject WScript.Shell;$w.SendKeys('{NUMLOCK}');}

Recently I ran into an issue with a laptop that had NumLock disabled automatically at certain times (such as when coming out of sleep mode). This prompted me to look for ways to programmatically check if NumLock was off, and if so, turn it on.

I'm looking for the best way to accomplish this. I want to run the script when certain events occur, such as when logging on to the laptop. I plan to do this with a scheduled task, and I'd prefer to use PowerShell over VBScript, but I'd be happy to use whatever works.

解决方案

In PowerShell, [console]::NumberLock is a Read Only property that will evaluate to true if NumLock is enabled.

The script I ended up writing is as follows:

if(-not [console]::NumberLock){ 
    $w = New-Object -ComObject WScript.Shell; 
    $w.SendKeys('{NUMLOCK}'); 
}

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