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FILE_NETWORK_OPEN_INFORMATION structure (wdm.h)

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The FILE_NETWORK_OPEN_INFORMATION structure is used as an argument to ZwQueryInformationFile.

Syntax

typedef struct _FILE_NETWORK_OPEN_INFORMATION {
  LARGE_INTEGER CreationTime;
  LARGE_INTEGER LastAccessTime;
  LARGE_INTEGER LastWriteTime;
  LARGE_INTEGER ChangeTime;
  LARGE_INTEGER AllocationSize;
  LARGE_INTEGER EndOfFile;
  ULONG         FileAttributes;
} FILE_NETWORK_OPEN_INFORMATION, *PFILE_NETWORK_OPEN_INFORMATION;

Members

CreationTime

Specifies the time that the file was created.

LastAccessTime

Specifies the time that the file was last accessed.

LastWriteTime

Specifies the time that the file was last written to.

ChangeTime

Specifies the time that the file was last changed.

AllocationSize

Specifies the file allocation size, in bytes. Usually, this value is a multiple of the sector or cluster size of the underlying physical device.

EndOfFile

Specifies the absolute end-of-file position as a byte offset from the start of the file. EndOfFile specifies the byte offset to the end of the file. Because this value is zero-based, it actually refers to the first free byte in the file. In other words, EndOfFile is the offset to the byte immediately following the last valid byte in the file.

FileAttributes

Specifies one or more FILE_ATTRIBUTE_XXX flags. For descriptions of these flags, see the documentation of the GetFileAttributes function in the Microsoft Windows SDK.

Remarks

FILE_READ_ATTRIBUTES access to the file is required to query this information.

Time values CreationTime, LastAccessTime, LastWriteTime, and ChangeTime are expressed in absolute system time format. Absolute system time is the number of 100-nanosecond intervals since the start of the year 1601 in the Gregorian calendar.

This structure must be aligned on a LONGLONG (8-byte) boundary.

Requirements

Requirement Value
Header wdm.h (include Wdm.h, Ntddk.h, Ntifs.h)

See also

ZwQueryInformationFile