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Overview
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Windows NT
Yes
Win95
No
Win32s
No
Import Library
-
Header File
winioctl.h
Unicode
No
Platform Notes
None

IOCTL_DISK_SET_DRIVE_LAYOUT

The IOCTL_DISK_SET_DRIVE_LAYOUT DeviceIoControl operation partitions a disk as specified by drive layout and partition information data.

dwIoControlCode = IOCTL_DISK_SET_DRIVE_LAYOUT; // operation code

lpInBuffer; // address of input buffer

nInBufferSize; // size of input buffer

lpOutBuffer = NULL; // address of output buffer; not used; must be NULL

nOutBufferSize = 0; // size of output buffer; not used; must be zero

lpBytesReturned; // address of actual bytes of output

Parameters

lpInBuffer

Points to a buffer that contains drive layout and partition information data. The data exists as a DRIVE_LAYOUT_INFORMATION data structure and a series of PARTITION_INFORMATION data structures, one of the latter for each proposed partition on the drive.

nInBufferSize

Specifies the size, in bytes, of the buffer pointed to by lpInBuffer, which must be large enough to contain one DRIVE_LAYOUT_INFORMATION data structure and as many PARTITION_INFORMATION data structures as there are proposed partitions on the drive.

lpOutBuffer

Points to an output buffer. Not used with this operation. Set to NULL.

nOutBufferSize

Specifies the size, in bytes, of the buffer pointed to by lpOutBuffer. Not used with this operation. Set to zero.

lpBytesReturned

Points to a DWORD that receives the actual size, in bytes, of the data stored into lpOutBuffer.

Return Values

If the operation succeeds, DeviceIoControl returns TRUE.

If the operation fails, DeviceIoControl returns FALSE. To get extended error information, call GetLastError.

Remarks

This device I/O control operation is for disk devices. Floppy disk drivers, however, need not handle this operation.

See Also

DeviceIoControl
, DRIVE_LAYOUT_INFORMATION, IOCTL_DISK_GET_DRIVE_LAYOUT, PARTITION_INFORMATION


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