IOCTL_REGISTER_POWER_RELATIONSHIP (Windows CE 5.0)

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This IOCTL notifies the parent device so the parent device can register all devices 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 if successful, FALSE otherwise.

Remarks

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

Requirements

OS Versions: Windows CE .NET 4.0 and later.
Header: Pm.h.

See Also

POWER_CAPABILITIES | POWER_RELATIONSHIP

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