IOCTL_REGISTER_POWER_RELATIONSHIP

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A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

This I/O control notifies the parent device so the parent device can register all devices that it controls.

Parameters

  • dwOpenData
    Ignored.
  • dwCode
    Ignored.
  • pBufIn
    [in] Set to NULL.
  • dwLenIn
    Ignored.
  • pBufOut
    [out] Set to NULL.
  • dwLenOut
    Ignored.
  • pdwActualOut
    Ignored.

Return Values

TRUE indicates success. FALSE indicates failure.

Remarks

Power Manager ignores the return values from this I/O control, which provides an opportunity for a parent device to notify Power Manager about any active devices that it controls. Power Manager sends this I/O control to devices that include the POWER_CAP_PARENT flag in the Flags member of the POWER_CAPABILITIES structure.

Requirements

Header pm.h
Windows Embedded CE Windows CE .NET 4.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also

Reference

Power Management I/O Controls
POWER_CAPABILITIES
POWER_RELATIONSHIP