how to access the acpi info inside windows system?

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as the title

somebody can help me?

I want to get the laptop LCD Backlight through acpi

I had read the some info about acpi ,
how can i get the IoBuildDeviceIoControlRequest function's parameter
PDO,

and I hope get a demo project

thanks

Posted 3-Jan-10 21:38pm

lfs09.cn

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Sandeep Mewara 25-Oct-10 1:46am

Update from OP:
i can get this information,we need use wmi acpi,,

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