| Platform SDK: Hardware |
The following control codes are used with batteries.
| Value | Meaning |
|---|---|
| IOCTL_BATTERY_QUERY_INFORMATION | Returns a variety of information for the battery |
| IOCTL_BATTERY_QUERY_STATUS | Returns the current status for the battery. |
| IOCTL_BATTERY_QUERY_TAG | Obtains the battery's current tag. |
| IOCTL_BATTERY_SET_INFORMATION | Sets various battery information. |
The following are defragmentation control codes.
| Value | Meaning |
|---|---|
| FSCTL_GET_RETRIEVAL_POINTERS | Get information about a file's cluster use. |
| FSCTL_GET_VOLUME_BITMAP | Get a bitmap of cluster allocation. |
| FSCTL_MOVE_FILE | Move all or part of a file from one set of clusters to another within a volume. |
The following control codes are used with file compression.
| Value | Meaning |
|---|---|
| FSCTL_GET_COMPRESSION | Obtains the compression state of a file or directory |
| FSCTL_SET_COMPRESSION | Sets the compression state of a file or directory. |
The following control codes are used with NTFS change journals.
| Value | Meaning |
|---|---|
| FSCTL_CREATE_USN_JOURNAL | Creates an NTFS change journal stream on a target volume or modifies an existing change journal stream. |
| FSCTL_DELETE_USN_JOURNAL | Deletes the NTFS change journal on a volume or awaits notification of deletion of an NTFS change journal. |
| FSCTL_ENUM_USN_DATA | Creates an enumeration that lists the NTFS change journal entries between two specified boundaries. |
| FSCTL_MARK_HANDLE | Marks a specified file or directory and its NTFS change journal record with information about changes to that file or directory. |
| FSCTL_QUERY_USN_JOURNAL | Queries for information on the current NTFS change journal, its records, and its capacity. |
| FSCTL_READ_USN_JOURNAL | Returns to the calling process the set of NTFS change journal records between two specified USN values. |
| FSCTL_WRITE_USN_CLOSE_RECORD | Generates a record in the change journal stream for the input file. This record will have the USN_REASON_CLOSE bit set. |
The following control codes are used with opportunistic locks.
| Value | Meaning |
|---|---|
| FSCTL_OPBATCH_ACK_CLOSE_PENDING | Notifies a server that a client application is about to close a file. An application uses this operation following notification that an opportunistic lock on the file is about to be broken. |
| FSCTL_OPLOCK_BREAK_ACK_NO_2 | Responds to notification that an opportunistic lock on a file is about to be broken. An application uses this operation to loose all opportunistic locks on the file but keep the file open. |
| FSCTL_OPLOCK_BREAK_ACKNOWLEDGE | Responds to notification that an exclusive opportunistic lock on a file is about to be broken. An application uses this operation to indicate that the file should receive a level 2 opportunistic lock. |
| FSCTL_OPLOCK_BREAK_NOTIFY | Allows the calling application to wait for completion of an opportunistic lock break. |
| FSCTL_REQUEST_BATCH_OPLOCK | Requests a batch opportunistic lock on a file. |
| FSCTL_REQUEST_FILTER_OPLOCK | Requests a filter opportunistic lock on a file. |
| FSCTL_REQUEST_OPLOCK_LEVEL_1 | Requests a level 1 opportunistic lock on a file. |
| FSCTL_REQUEST_OPLOCK_LEVEL_2 | Requests a level 2 opportunistic lock on a file. |
The following control codes are used with reparse points.
| Value | Meaning |
|---|---|
| FSCTL_DELETE_REPARSE_POINT | Deletes a reparse point for a file or directory. |
| FSCTL_GET_REPARSE_POINT | Returns reparse point data for a file or directory. |
| FSCTL_SET_REPARSE_POINT | Sets a reparse point on a file or directory. |
The following control codes are used with sparse files.
| Value | Meaning |
|---|---|
| FSCTL_QUERY_ALLOCATED_RANGES | Scans a file for ranges of the file for which disk space is allocated. |
| FSCTL_SET_SPARSE | Marks a file as a sparse file. |
| FSCTL_SET_ZERO_DATA | Sets a range of a files bytes to zeroes. |
The following are general device input and output control codes.
| Value | Meaning |
|---|---|
| FSCTL_ALLOW_EXTENDED_DASD_IO | Signals the file system driver not to perform any I/O boundary checks on partition read or write calls. Instead, boundary checks are performed by the device driver. |
| FSCTL_CREATE_OR_GET_OBJECT_ID | Creates or gets a file system object identifier for an existing, open object in a Windows 2000 NTFS file system. |
| FSCTL_DELETE_OBJECT_ID | Removes a file system object identifier from an existing, open object in a Windows 2000 NTFS file system. |
| FSCTL_DISMOUNT_VOLUME | Dismounts a volume. |
| FSCTL_GET_HFS_INFORMATION | Returns Macintosh Finder information about the file associated with the input handle. |
| FSCTL_GET_OBJECT_ID | Gets the object identifier for an existing, open object in a Windows 2000 NTFS file system. |
| FSCTL_LOCK_VOLUME | Locks a volume. |
| FSCTL_READ_COMPRESSION | Reserved for future use. |
| FSCTL_RECALL_FILE | Recalls a file from storage media managed by Remote Storage, the hierarchical storage management software in Windows 2000. |
| FSCTL_SET_OBJECT_ID | Sets a file system object identifier for an existing, open object in a Windows 2000 NTFS file system. |
| FSCTL_SET_OBJECT_ID_EXTENDED | Modifies user data in the object identifier of an existing, open object in a Windows 2000 NTFS file system. |
| FSCTL_UNLOCK_VOLUME | Unlocks a volume. |
| FSCTL_WRITE_COMPRESSION | Reserved for future use. |
| IOCTL_DISK_FORMAT_TRACKS | Formats a contiguous set of disk tracks. |
| IOCTL_DISK_GET_DRIVE_GEOMETRY | Obtains information on the physical disk's geometry. |
| IOCTL_DISK_GET_DRIVE_LAYOUT | Provides information about each partition on a disk. |
| IOCTL_DISK_GET_PARTITION_INFO | Obtains disk partition information. |
| IOCTL_DISK_PERFORMANCE | Provides disk performance information. |
| IOCTL_DISK_REASSIGN_BLOCKS | Maps disk blocks to spare-block pool. |
| IOCTL_DISK_SET_DRIVE_LAYOUT | Partitions a disk. |
| IOCTL_DISK_SET_PARTITION_INFO | Sets the disk partition type. |
| IOCTL_DISK_VERIFY | Performs logical format of a disk extent. |
| IOCTL_SERIAL_LSRMST_INSERT | Enables or disables placement of a line and modem status data into the data stream. |
| IOCTL_STORAGE_CHECK_VERIFY | Checks for change in a removable-media device. |
| IOCTL_STORAGE_EJECT_MEDIA | Ejects media from a SCSI device. |
| IOCTL_STORAGE_GET_MEDIA_TYPES | Obtains information about media support. |
| IOCTL_STORAGE_LOAD_MEDIA | Loads media into a device. |
| IOCTL_STORAGE_MEDIA_REMOVAL | Enables or disables the media eject mechanism. |
FSCTL_QUERY_FAT_BPB
IOCTL_DISK_CHECK_VERIFY
IOCTL_DISK_EJECT_MEDIA
IOCTL_DISK_GET_MEDIA_TYPES
IOCTL_DISK_LOAD_MEDIA
IOCTL_DISK_MEDIA_REMOVAL