DISK_EXTENT structure (ntddvol.h)
The DISK_EXTENT structure contains information defining the location and length of a volume extent on a disk.
Syntax
typedef struct _DISK_EXTENT {
ULONG DiskNumber;
LARGE_INTEGER StartingOffset;
LARGE_INTEGER ExtentLength;
} DISK_EXTENT, *PDISK_EXTENT;
Members
DiskNumber
Specifies the number of the disk that contains this extent. This is the same disk number that is used to construct the name of the disk (for example, PhysicalDriveX or HarddiskX, where X is the disk number).
StartingOffset
Specifies the offset, in bytes, from the beginning of the disk.
ExtentLength
Specifies the number of bytes of this extent.
Requirements
| Requirement | Value |
|---|---|
| Header | ntddvol.h (include Ntddvol.h) |