Edit

WDF_FILE_INFORMATION_CLASS enumeration (wdffileobject.h)

  • Article

[Warning: UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2. For more info, see Getting Started with UMDF.]

The WDF_FILE_INFORMATION_CLASS enumeration identifies the types of file information that a driver can obtain or set.

Syntax

typedef enum _WDF_FILE_INFORMATION_CLASS {
  WdfFileInformationDirectory = 1,
  WdfFileInformationFullDirectory = 2,
  WdfFileInformationBothDirectory = 3,
  WdfFileInformationBasic = 4,
  WdfFileInformationStandard = 5,
  WdfFileInformationInternal = 6,
  WdfFileInformationEa = 7,
  WdfFileInformationAccess = 8,
  WdfFileInformationName = 9,
  WdfFileInformationRename = 10,
  WdfFileInformationLink = 11,
  WdfFileInformationNames = 12,
  WdfFileInformationDisposition = 13,
  WdfFileInformationPosition = 14,
  WdfFileInformationFullEa = 15,
  WdfFileInformationMode = 16,
  WdfFileInformationAlignment = 17,
  WdfFileInformationAll = 18,
  WdfFileInformationAllocation = 19,
  WdfFileInformationEndOfFile = 20,
  WdfFileInformationAlternateName = 21,
  WdfFileInformationStream = 22,
  WdfFileInformationPipe = 23,
  WdfFileInformationPipeLocal = 24,
  WdfFileInformationPipeRemote = 25,
  WdfFileInformationMailslotQuery = 26,
  WdfFileInformationMailslotSet = 27,
  WdfFileInformationCompression = 28,
  WdfFileInformationObjectId = 29,
  WdfFileInformationCompletion = 30,
  WdfFileInformationMoveCluster = 31,
  WdfFileInformationQuota = 32,
  WdfFileInformationReparsePoint = 33,
  WdfFileInformationNetworkOpen = 34,
  WdfFileInformationAttributeTag = 35,
  WdfFileInformationTracking = 36,
  WdfFileInformationIdBothDirectory = 37,
  WdfFileInformationIdFullDirectory = 38,
  WdfFileInformationValidDataLength = 39,
  WdfFileInformationShortName = 40,
  WdfFileInformationIoCompletionNotification = 41,
  WdfFileInformationIoStatusBlockRange = 42,
  WdfFileInformationIoPriorityHint = 43,
  WdfFileInformationSfioReserve = 44,
  WdfFileInformationSfioVolume = 45,
  WdfFileInformationHardLink = 46,
  WdfFileInformationProcessIdsUsingFile = 47,
  WdfFileInformationNormalizedName = 48,
  WdfFileInformationNetworkPhysicalName = 49,
  WdfFileInformationIdGlobalTxDirectory = 50,
  WdfFileInformationIsRemoteDevice = 51,
  WdfFileInformationAttributeCache = 52,
  WdfFileInformationMaximum = 
} WDF_FILE_INFORMATION_CLASS, *PWDF_FILE_INFORMATION_CLASS;

Constants

 
WdfFileInformationDirectory
Value: 1
WdfFileInformationFullDirectory
Value: 2
WdfFileInformationBothDirectory
Value: 3
WdfFileInformationBasic
Value: 4
WdfFileInformationStandard
Value: 5
WdfFileInformationInternal
Value: 6
WdfFileInformationEa
Value: 7
WdfFileInformationAccess
Value: 8
WdfFileInformationName
Value: 9
WdfFileInformationRename
Value: 10
WdfFileInformationLink
Value: 11
WdfFileInformationNames
Value: 12
WdfFileInformationDisposition
Value: 13
WdfFileInformationPosition
Value: 14
WdfFileInformationFullEa
Value: 15
WdfFileInformationMode
Value: 16
WdfFileInformationAlignment
Value: 17
WdfFileInformationAll
Value: 18
WdfFileInformationAllocation
Value: 19
WdfFileInformationEndOfFile
Value: 20
WdfFileInformationAlternateName
Value: 21
WdfFileInformationStream
Value: 22
WdfFileInformationPipe
Value: 23
WdfFileInformationPipeLocal
Value: 24
WdfFileInformationPipeRemote
Value: 25
WdfFileInformationMailslotQuery
Value: 26
WdfFileInformationMailslotSet
Value: 27
WdfFileInformationCompression
Value: 28
WdfFileInformationObjectId
Value: 29
WdfFileInformationCompletion
Value: 30
WdfFileInformationMoveCluster
Value: 31
WdfFileInformationQuota
Value: 32
WdfFileInformationReparsePoint
Value: 33
WdfFileInformationNetworkOpen
Value: 34
WdfFileInformationAttributeTag
Value: 35
WdfFileInformationTracking
Value: 36
WdfFileInformationIdBothDirectory
Value: 37
WdfFileInformationIdFullDirectory
Value: 38
WdfFileInformationValidDataLength
Value: 39
WdfFileInformationShortName
Value: 40
WdfFileInformationIoCompletionNotification
Value: 41
WdfFileInformationIoStatusBlockRange
Value: 42
WdfFileInformationIoPriorityHint
Value: 43
WdfFileInformationSfioReserve
Value: 44
WdfFileInformationSfioVolume
Value: 45
WdfFileInformationHardLink
Value: 46
WdfFileInformationProcessIdsUsingFile
Value: 47
WdfFileInformationNormalizedName
Value: 48
WdfFileInformationNetworkPhysicalName
Value: 49
WdfFileInformationIdGlobalTxDirectory
Value: 50
WdfFileInformationIsRemoteDevice
Value: 51
WdfFileInformationAttributeCache
Value: 52
WdfFileInformationMaximum

Remarks

The WDF_FILE_INFORMATION_CLASS enumeration is used as an input value to IWDFIoRequest2::GetQueryInformationParameters and as an output value from IWDFIoRequest2::GetSetInformationParameters.

For most values that the WDF_FILE_INFORMATION_CLASS enumeration defines, the wdm.h or ntifs.h header file defines a FILE_XXXX_INFORMATION-named structure that the driver can use when obtaining or setting the file information.

For more information about the enumeration value and associated structures, see the description of the FileInformationClass parameter of ZwQueryInformationFile and ZwSetInformationFile.

Requirements

Requirement Value
Minimum UMDF version 1.9
Header wdffileobject.h (include Wudfddi.h)

See also

IWDFIoRequest2::GetQueryInformationParameters

IWDFIoRequest2::GetSetInformationParameters