DISK_PARTITION_INFO structure (winioctl.h)

Contains the disk partition information.

Syntax

typedef struct _DISK_PARTITION_INFO {
  DWORD           SizeOfPartitionInfo;
  PARTITION_STYLE PartitionStyle;
  union {
    struct {
      DWORD Signature;
      DWORD CheckSum;
    } Mbr;
    struct {
      GUID DiskId;
    } Gpt;
  } DUMMYUNIONNAME;
} DISK_PARTITION_INFO, *PDISK_PARTITION_INFO;

Members

SizeOfPartitionInfo

The size of this structure, in bytes.

PartitionStyle

The format of a partition.

For more information, see PARTITION_STYLE.

DUMMYUNIONNAME

DUMMYUNIONNAME.Mbr

If PartitionStyle is PARTITION_STYLE_MBR (0), the union is a structure that contains information for a master boot record partition, which includes a disk signature and a checksum.

DUMMYUNIONNAME.Mbr.Signature

MBR signature of the partition.

DUMMYUNIONNAME.Mbr.CheckSum

DUMMYUNIONNAME.Gpt

If PartitionStyle is PARTITION_STYLE_GPT (1), the union is a structure that contains information for a GUID partition table partition, which includes a disk identifier (GUID).

DUMMYUNIONNAME.Gpt.DiskId

GUID of the GPT partition.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Header	winioctl.h (include Windows.h)

See also

DISK_GEOMETRY_EX, PARTITION_STYLE