IoReadDiskSignature - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// ntddk.h

NTSTATUS IoReadDiskSignature(
  [in]  PDEVICE_OBJECT  DeviceObject,
  [in]  ULONG           BytesPerSector,
  [out] PDISK_SIGNATURE Signature
);
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-ntddk-ioreaddisksignature)

IoReadDiskSignature function

Description

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

Parameters

DeviceObject [in]

Specifies the device object for the disk to read.

BytesPerSector [in]

Specifies the number of bytes per sector of the disk.

Signature [out]

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.

Remarks

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

View the official Windows Driver Kit DDI reference

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