IoReadDiskSignature

The IoReadDiskSignature routine reads the disk signature information for the partition table of a disk.

NTKERNELAPI
NTSTATUS
  IoReadDiskSignature(
    IN PDEVICE_OBJECT  DeviceObject,
    IN ULONG  BytesPerSector,
    OUT PDISK_SIGNATURE  Signature
    );

Parameters

DeviceObject

Specifies the device object for the disk to read.

BytesPerSector

Specifies the number of bytes per sector of the disk.

Signature

Pointer to a DISK_SIGNATURE structure the routine uses to return the disk signature information.

Return Value

The routine returns STATUS_SUCCESS on success, or the appropriate error code on failure. The routine returns STATUS_DISK_CORRUPT_ERROR if it detects that the disk partition table is corrupted.

Headers

Declared in ntddk.h. Include ntddk.h.

Comments

This routine is only available on Windows XP and later.

IoReadDiskSignature must only be used by disk drivers. Other drivers should use the IOCTL_DISK_GET_DRIVE_GEOMETRY_EX I/O request instead.

See Also

DISK_SIGNATURE, IOCTL_DISK_GET_DRIVE_GEOMETRY_EX