Contains information about the file that is found by the FindFirstFile, FindFirstFileEx, or FindNextFile function.

Syntax

typedef struct _WIN32_FIND_DATA {
  DWORD    dwFileAttributes;
  FILETIME ftCreationTime;
  FILETIME ftLastAccessTime;
  FILETIME ftLastWriteTime;
  DWORD    nFileSizeHigh;
  DWORD    nFileSizeLow;
  DWORD    dwReserved0;
  DWORD    dwReserved1;
  TCHAR    cFileName[MAX_PATH];
  TCHAR    cAlternateFileName[14];
}WIN32_FIND_DATA, *PWIN32_FIND_DATA, *LPWIN32_FIND_DATA;

Members

dwFileAttributes

The file attributes of a file.

For possible values and their descriptions, see File Attributes.

ftCreationTime

A FILETIME structure that specifies when a file or directory was created.

If the underlying file system does not support creation time, this member is zero.

ftLastAccessTime

A FILETIME structure.

For a file, the structure specifies when the file was last read from, written to, or for executable files, run.

For a directory, the structure specifies when the directory is created. If the underlying file system does not support last access time, this member is zero.

On the FAT file system, the specified date for both files and directories is correct, but the time of day is always set to midnight.

ftLastWriteTime

A FILETIME structure.

For a file, the structure specifies when the file was last written to, truncated, or overwritten, for example, when WriteFile or SetEndOfFile are used. The date and time are not updated when file attributes or security descriptors are changed.

For a directory, the structure specifies when the directory is created. If the underlying file system does not support last write time, this member is zero.

nFileSizeHigh

The high-order DWORD value of the file size, in bytes.

This value is zero unless the file size is greater than MAXDWORD.

The size of the file is equal to (nFileSizeHigh * (MAXDWORD+1)) + nFileSizeLow.

nFileSizeLow

The low-order DWORD value of the file size, in bytes.

dwReserved0

If the dwFileAttributes member includes the FILE_ATTRIBUTE_REPARSE_POINT attribute, this member specifies the reparse point tag.

Otherwise, this value is undefined and should not be used.

For more information see Reparse Point Tags.

Name	Value
IO_REPARSE_TAG_DFS	0x8000000A
IO_REPARSE_TAG_DFSR	0x80000012
IO_REPARSE_TAG_HSM	0xC0000004
IO_REPARSE_TAG_HSM2	0x80000006
IO_REPARSE_TAG_MOUNT_POINT	0xA0000003
IO_REPARSE_TAG_SIS	0x80000007
IO_REPARSE_TAG_SYMLINK	0xA000000C

 

dwReserved1

Reserved for future use.

cFileName

The name of the file.

cAlternateFileName

An alternative name for the file.

This name is in the classic 8.3 file name format.

Remarks

If a file has a long file name, the complete name appears in the cFileName member, and the 8.3 format truncated version of the name appears in the cAlternateFileName member. Otherwise, cAlternateFileName is empty. If the FindFirstFileEx function was called with a value of FindExInfoBasic in the fInfoLevelId parameter, the cAlternateFileName member will always contain a NULL string value. This remains true for all subsequent calls to the FindNextFile function. As an alternative method of retrieving the 8.3 format version of a file name, you can use the GetShortPathName function. For more information about file names, see File Names, Paths, and Namespaces.

Not all file systems can record creation and last access times, and not all file systems record them in the same manner. For example, on the FAT file system, create time has a resolution of 10 milliseconds, write time has a resolution of 2 seconds, and access time has a resolution of 1 day. The NTFS file system delays updates to the last access time for a file by up to 1 hour after the last access. For more information, see File Times.

Requirements

See Also

File Attributes

File Names, Paths, and Namespaces

File Times

FILETIME

FindFirstFile

FindFirstFileEx

FindNextFile

FileTimeToLocalFileTime

FileTimeToSystemTime

GetShortPathName

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Build date: 10/22/2009