// wdm.h

typedef struct _PLUGPLAY_NOTIFICATION_HEADER {
  USHORT Version;
  USHORT Size;
  GUID   Event;
} PLUGPLAY_NOTIFICATION_HEADER, *PPLUGPLAY_NOTIFICATION_HEADER;
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Windows Driver Kit DDI reference (ns-wdm-_plugplay_notification_header)

_PLUGPLAY_NOTIFICATION_HEADER structure

Description

A PLUGPLAY_NOTIFICATION_HEADER structure is included at the beginning of each PnP notification structure, such as a DEVICE_INTERFACE_CHANGE_NOTIFICATION structure.

Members

`Version`

Specifies the version of the data structure, currently set to 1.

`Size`

Specifies the size of the structure, in bytes.

`Event`

Specifies a GUID identifying the event.

Remarks

Drivers can cast a PnP notification structure to this type to access the Event field and identify the exact type of the structure.

PLUGPLAY_NOTIFICATION_HEADER - NtDoc