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Overview
Group
Quick Info

Windows NT
Yes
Win95
No
Win32s
No
Import Library
-
Header File
winioctl.h
Unicode
No
Platform Notes
None

PARTITION_INFORMATION

The PARTITION_INFORMATION structure provides information about a disk partition.

typedef struct _PARTITION_INFORMATION {

LARGE_INTEGER StartingOffset;

LARGE_INTEGER PartitionLength;

DWORD HiddenSectors;

DWORD PartitionNumber;

BYTE PartitionType;

BOOLEAN BootIndicator;

BOOLEAN RecognizedPartition;

BOOLEAN RewritePartition;

} PARTITION_INFORMATION, *PPARTITION_INFORMATION;

Members

StartingOffset

Specifies the starting offset of the partition.

PartitionLength

Specifies the length of the partition.

HiddenSectors

Specifies the number of hidden sectors in the partition.

PartitionNumber

Specifies the number of the partition (1-based).

PartitionType

Specifies the type of partition. This member can be one of the following values: Value
Meaning
PARTITION_ENTRY_UNUSED
Entry unused.
PARTITION_FAT_12
Specifies a partition with 12-bit FAT entries.
PARTITION_XENIX_1
Specifies a Xenix type 1 partition.
PARTITION_XENIX_2
Specifies a Xenix type 2 partition.
PARTITION_FAT_16
Specifies a partition with 16-bit FAT entries.
PARTITION_EXTENDED
Specifies an extended partition entry.
PARTITION_HUGE
Specifies an MS-DOS V4 huge partition.
PARTITION_IFS
Specifies an IFS partition.
PARTITION_PREP
Specifies a PowerPC Reference Platform partition.
PARTITION_UNIX
Specifies a UNIX partition.
VALID_NTFT
Specifies an NTFT partition.
PARTITION_XINT13
Specifies a Windows 95 partition that uses extended int13 services.
PARTITION_XINT13_EXTENDED
Same as PARTITION_EXTENDED, but uses extended int13 services.

BootIndicator

Specifies whether the partition is bootable.

RecognizedPartition

Specifies whether the partition is recognized.

RewritePartition

Specifies whether the partition information has changed. When you change a partition (with IOCTL_DISK_SET_DRIVE_LAYOUT), the system uses this member to determine which partitions have changed and need their information rewritten.

Remarks

The DeviceIoControl function receives a PARTITION_INFORMATION structure in response to an IOCTL_DISK_GET_PARTITION_INFO or IOCTL_DISK_GET_DRIVE_LAYOUT device input and output control (IOCTL) operation. The DeviceIoControl function uses a PARTITION_INFORMATION structure as input to an IOCTL_DISK_SET_DRIVE_LAYOUT device IOCTL operation.

See Also

DeviceIoControl
, IOCTL_DISK_GET_DRIVE_LAYOUT, IOCTL_DISK_GET_PARTITION_INFO, IOCTL_DISK_SET_DRIVE_LAYOUT


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