// hidpi.h

typedef struct _HIDP_EXTENDED_ATTRIBUTES {
  UCHAR               NumGlobalUnknowns;
  UCHAR               Reserved[3];
  PHIDP_UNKNOWN_TOKEN GlobalUnknowns;
  ULONG               Data[1];
} HIDP_EXTENDED_ATTRIBUTES, *PHIDP_EXTENDED_ATTRIBUTES;
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Windows Driver Kit DDI reference (ns-hidpi-_hidp_extended_attributes)

_HIDP_EXTENDED_ATTRIBUTES structure

Description

The HIDP_EXTENDED_ATTRIBUTES structure contains information about the global items specified for a HID control that the HID parser did not recognize.

Members

`NumGlobalUnknowns`

Specifies the number of HIDP_UNKNOWN_TOKEN structures in the list specified by Data.

`Reserved`

Reserved for internal system use only.

`GlobalUnknowns`

Reserved for internal system use only.

`Data`

Specifies the memory location where HidP_GetExtendedAttributes returns a variable length array of HIDP_UNKNOWN_TOKEN structures.

Remarks

The HIDP_EXTENDED_ATTRIBUTES structure is designed to be used with HidP_GetExtendedAttributes.

HIDP_EXTENDED_ATTRIBUTES - NtDoc