## Physical Device Driver Reference

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### POWER_GETPOWERSTATE (63h) - Query Power State

Category:
IOCTL_POWER (0Ch)
Function:
POWER_GETPOWERSTATE (63h)
Description:
Query Power State

Select an item:

    Description
    Parameter Packet Format
    Data Packet Format
    Returns
    Remarks

Returns the current power state of a device, class of devices, or the entire system to be queried.