STORAGE_READ_CAPACITY structure
Contains information about the size of a device. This is returned from the IOCTL_STORAGE_READ_CAPACITY control code.
Syntax
typedef struct _STORAGE_READ_CAPACITY {
ULONG Version;
ULONG Size;
ULONG BlockLength;
LARGE_INTEGER NumberOfBlocks;
LARGE_INTEGER DiskLength;
} STORAGE_READ_CAPACITY, *PSTORAGE_READ_CAPACITY;
Members
-
Version
-
The version of this structure. The caller must set this member to
sizeof(STORAGE_READ_CAPACITY). -
Size
-
The size of the data returned.
-
BlockLength
-
The number of bytes per block.
-
NumberOfBlocks
-
The total number of blocks on the disk.
-
DiskLength
-
The disk size in bytes.
Remarks
The header file Ntddstor.h is available in the Windows Driver Kit (WDK).
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista |
| Minimum supported server |
Windows Server 2008, Windows Server 2003 with SP1 |
| Header |
|