Edit

Share via

SDP_NODE_DATA union (sdpnode.h)

  • Article

The SDP_NODE_DATA union holds the data of an element in a tree-based representation of an SDP record.

Syntax

typedef union _SDP_NODE_DATA {
  SDP_LARGE_INTEGER_16  int128;
  SDP_ULARGE_INTEGER_16 uint128;
  GUID                  uuid128;
  ULONG                 uuid32;
  USHORT                uuid16;
  LONGLONG              int64;
  ULONGLONG             uint64;
  LONG                  int32;
  ULONG                 uint32;
  SHORT                 int16;
  USHORT                uint16;
  CHAR                  int8;
  UCHAR                 uint8;
  SDP_BOOLEAN           boolean;
  PCHAR                 string;
  PCHAR                 url;
  SDP_NODE_HEADER       sequence;
  SDP_NODE_HEADER       alternative;
  ISdpNodeContainer     *container;
  struct {
    PUCHAR stream;
    ULONG  streamLength;
  };
} SDP_NODE_DATA, *PSDP_NODE_DATA;

Members

int128

The union member for a 128-bit integer.

uint128

The union member for an unsigned 128-bit integer.

uuid128

The union member for a 128-bit universally unique identifier (UUID).

uuid32

The union member for a 32-bit UUID.

uuid16

The union member for a 16-bit UUID.

int64

The union member for a 64-bit integer.

uint64

The union member for an unsigned 64-bit integer.

int32

The union member for a 32-bit integer.

uint32

The union member for an unsigned 32-bit integer.

int16

The union member for a 16-bit integer.

uint16

The union member for an unsigned 16-bit integer.

int8

The union reserved for an 8-bit integer.

uint8

The union member for an unsigned 8-bit integer.

boolean

The union member for a Boolean value.

string

The union member for a string value.

url

The union member for a URL value.

sequence

An SDP_NODE_HEADER structure that references the elements of a sequence.

alternative

An SDP_NODE_HEADER structure that references the elements of an alternate list sequence.

container

A list of pointers to user-mode specific interfaces.

stream

The address of a portion of the original SDP stream that produced the current SDP node.

streamLength

The length of the portion of the original SDP stream that produced the current SDP node.

Remarks

Each SDP_NODE structure in the tree representation of an SDP record contains a SDP_NODE_HEADER structure and an SDP_NODE_DATA union.

The header specifies the type of data. Driver developers can access links to peer SDP_NODE structures by calling the LIST_ENTRY structure of the header. By evaluating Node.hdr.Link.Flinkand Node.hdr.Link.Blink, drivers can obtain the addresses of peer nodes in the tree. Keep in mind that LIST_ENTRY pointers contain the addresses of other LIST_ENTRY structures, and that the profile driver must use the CONTAINING_RECORD memory manager macro to extract the address of the containing node record.

The unnamed struct contains the union member for a 128-bit integer.

Requirements

Requirement Value
Minimum supported client Versions:_Supported in Windows Vista, and later.
Header sdpnode.h (include Sdpnode.h)

See also