WIN32_FIND_DATA The WIN32_FIND_DATA structure describes a file found by the FindFirstFile, FindFirstFileEx, or FindNextFile function. 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; Members dwFileAttributes Specifies the file attributes of the file found. This member can be one or more of the following values. Attribute Meaning FILE_ATTRIBUTE_ARCHIVE The file or directory is an archive file or directory. Applications use this attribute to files for backup or removal. FILE_ATTRIBUTE_COMPRESSED The file or directory is compressed. For a file, this means that all of the data in the file is compressed. For a directory, this means that compression is the default for newly created files and subdirectories. FILE_ATTRIBUTE_DIRECTORY The handle identifies a directory. FILE_ATTRIBUTE_ENCRYPTED The file or directory is encrypted. For a file, this means that all data in the file is encrypted. For a directory, this means that encryption is the default for newly created files and subdirectories. FILE_ATTRIBUTE_HIDDEN The file or directory is hidden. It is not included in an ordinary directory listing. FILE_ATTRIBUTE_NORMAL The file or directory has no other attributes set. This attribute is valid only if used alone. FILE_ATTRIBUTE_OFFLINE The file data is not immediately available. This attribute indicates that the file data has been physically moved to offline storage. This attribute is used by Remote Storage, the hierarchical storage management software. Applications should not arbitrarily change this attribute. FILE_ATTRIBUTE_READONLY The file or directory is read-only. Applications can read the file but cannot write to it or delete it. In the case of a directory, applications cannot delete it. FILE_ATTRIBUTE_REPARSE_POINT The file has an associated reparse point. FILE_ATTRIBUTE_SPARSE_FILE The file is a sparse file. FILE_ATTRIBUTE_SYSTEM The file or directory is part of the operating system or is used exclusively by the operating system. FILE_ATTRIBUTE_TEMPORARY The file is being used for temporary storage. File systems attempt to keep all of the data in memory for quicker access, rather than flushing it back to mass storage. A temporary file should be deleted by the application as soon as it is no longer needed. ftCreationTime A FILETIME structure that specifies when the file or directory was created. If the underlying file system does not support creation time, ftCreationTime is zero. ftLastAccessTime A FILETIME structure. For a file, the structure specifies when the file was last read from or written to. For a directory, the structure specifies when the directory was created. For both files and directories, the specified date will be correct, but the time of day will always be set to midnight. If the underlying file system does not support last access time, ftLastAccessTime is zero. ftLastWriteTime A FILETIME structure. For a file, the structure specifies when the file was last written to. For a directory, the structure specifies when the directory was created. If the underlying file system does not support last write time, ftLastWriteTime is zero. nFileSizeHigh Specifies 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 Specifies 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 tag. Otherwise, this value is undefined and should not be used. dwReserved1 Reserved for future use. cFileName A null-terminated string that is the name of the file. cAlternateFileName A null-terminated string that is an alternative name for the file. This name is in the classic 8.3 (filename.ext) file name format. Res If a file has a long file name, the complete name appears in the cFileName field, and the 8.3 format truncated version of the name appears in the cAlternateFileName field. Otherwise, cAlternateFileName is empty. As an alternative, you can use the GetShortPathName function to find the 8.3 format version of a file name.Not all file systems can record creation and last access time and not all file systems record them in the same manner. For example, on NT FAT, 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 (really, the access date). On NTFS, access time has a resolution of 1 hour. For more information, see File Times. Requirements Windows NT/2000/XP: Included in Windows NT 3.1 and later. Windows 95/98/Me: Included in Windows 95 and later. Header: Declared in Winbase.h; include Windows.h. Unicode: Declared as Unicode and ANSI structures.See Also File I/O Overview, File I/O Structures, FILETIME, FindFirstFile, FindFirstFileEx, FindNextFile, FileTimeToLocalFileTime, FileTimeToSystemTime, GetShortPathName msdn上有,我是从msdn copy的
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;
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The WIN32_FIND_DATA structure describes a file found by the FindFirstFile, FindFirstFileEx, or FindNextFile function. 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;
Members
dwFileAttributes
Specifies the file attributes of the file found. This member can be one or more of the following values. Attribute Meaning
FILE_ATTRIBUTE_ARCHIVE The file or directory is an archive file or directory. Applications use this attribute to files for backup or removal.
FILE_ATTRIBUTE_COMPRESSED The file or directory is compressed. For a file, this means that all of the data in the file is compressed. For a directory, this means that compression is the default for newly created files and subdirectories.
FILE_ATTRIBUTE_DIRECTORY The handle identifies a directory.
FILE_ATTRIBUTE_ENCRYPTED The file or directory is encrypted. For a file, this means that all data in the file is encrypted. For a directory, this means that encryption is the default for newly created files and subdirectories.
FILE_ATTRIBUTE_HIDDEN The file or directory is hidden. It is not included in an ordinary directory listing.
FILE_ATTRIBUTE_NORMAL The file or directory has no other attributes set. This attribute is valid only if used alone.
FILE_ATTRIBUTE_OFFLINE The file data is not immediately available. This attribute indicates that the file data has been physically moved to offline storage. This attribute is used by Remote Storage, the hierarchical storage management software. Applications should not arbitrarily change this attribute.
FILE_ATTRIBUTE_READONLY The file or directory is read-only. Applications can read the file but cannot write to it or delete it. In the case of a directory, applications cannot delete it.
FILE_ATTRIBUTE_REPARSE_POINT The file has an associated reparse point.
FILE_ATTRIBUTE_SPARSE_FILE The file is a sparse file.
FILE_ATTRIBUTE_SYSTEM The file or directory is part of the operating system or is used exclusively by the operating system.
FILE_ATTRIBUTE_TEMPORARY The file is being used for temporary storage. File systems attempt to keep all of the data in memory for quicker access, rather than flushing it back to mass storage. A temporary file should be deleted by the application as soon as it is no longer needed.
ftCreationTime
A FILETIME structure that specifies when the file or directory was created. If the underlying file system does not support creation time, ftCreationTime is zero.
ftLastAccessTime
A FILETIME structure. For a file, the structure specifies when the file was last read from or written to. For a directory, the structure specifies when the directory was created. For both files and directories, the specified date will be correct, but the time of day will always be set to midnight. If the underlying file system does not support last access time, ftLastAccessTime is zero.
ftLastWriteTime
A FILETIME structure. For a file, the structure specifies when the file was last written to. For a directory, the structure specifies when the directory was created. If the underlying file system does not support last write time, ftLastWriteTime is zero.
nFileSizeHigh
Specifies 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
Specifies 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 tag. Otherwise, this value is undefined and should not be used.
dwReserved1
Reserved for future use.
cFileName
A null-terminated string that is the name of the file.
cAlternateFileName
A null-terminated string that is an alternative name for the file. This name is in the classic 8.3 (filename.ext) file name format.
Res
If a file has a long file name, the complete name appears in the cFileName field, and the 8.3 format truncated version of the name appears in the cAlternateFileName field. Otherwise, cAlternateFileName is empty. As an alternative, you can use the GetShortPathName function to find the 8.3 format version of a file name.Not all file systems can record creation and last access time and not all file systems record them in the same manner. For example, on NT FAT, 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 (really, the access date). On NTFS, access time has a resolution of 1 hour. For more information, see File Times. Requirements
Windows NT/2000/XP: Included in Windows NT 3.1 and later.
Windows 95/98/Me: Included in Windows 95 and later.
Header: Declared in Winbase.h; include Windows.h.
Unicode: Declared as Unicode and ANSI structures.See Also
File I/O Overview, File I/O Structures, FILETIME, FindFirstFile, FindFirstFileEx, FindNextFile, FileTimeToLocalFileTime, FileTimeToSystemTime, GetShortPathName
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