The DRIVE_LAYOUT_INFORMATION structure provides information about a drive's partitions.
typedef struct _DRIVE_LAYOUT_INFORMATION {
DWORD PartitionCount;
DWORD Signature;
PARTITION_INFORMATION PartitionEntry[1];
} DRIVE_LAYOUT_INFORMATION;
The DeviceIoControl function receives a DRIVE_LAYOUT_INFORMATION structure in response to an IOCTL_DISK_GET_DRIVE_LAYOUT device I/O operation. The DeviceIoControl function uses a DRIVE_LAYOUT_INFORMATION structure as input to an IOCTL_DISK_SET_DRIVE_LAYOUT device I/O operation.
Windows NT: Requires version 3.1 or later.
Windows: Unsupported.
Windows CE: Unsupported.
Header: Declared in winioctl.h.
Device Input and Output Overview, Device Input and Output Structures, DeviceIoControl, IOCTL_DISK_GET_DRIVE_LAYOUT, IOCTL_DISK_SET_DRIVE_LAYOUT, PARTITION_INFORMATION