Detect if lid is opening/closing

Hello all,

I would like to do some actions in my app(specifically writing some logs) when laptop is waken up/slept due to lid opening/closing.

How can I detect that? Is there Notification emitted or API I can check to achieve that?

I have read I could use Advanced Configuration and Power Interface (ACPI) but I havent found a lot of documentation.

Thanks in advance

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Rulovic
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Could this provide a first hint at a solution ?


h ttps://unix.stackexchange.com/questions/11724/how-to-detect-a-laptop-hibernate-resumeclose-lid-open-in-osx-from-a-bash-scrip


Good luck.

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Claude31
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The power management APIs, like 

IORegisterForSystemPower
, tell you about the system’s power state, which is not directly tied to the lid state. A MacBook has be asleep with the lid open and awake with the lid closed.

As far I know there’s no way to get the lid state directly.

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eskimo
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