fileinfomod.bas

主要是一些文件操作的技巧

Attribute VB_Name = "FileInfoMod"
'Declaratins:
Declare Function FindFirstFile Lib "kernel32" Alias "FindFirstFileA" _
    (ByVal lpFileName As String, _
    lpFindFileData As WIN32_FIND_DATA _
    ) As Long
Declare Function FindClose Lib "kernel32" _
    (ByVal hFindFile As Long _
    ) As Long
Declare Function FileTimeToSystemTime Lib "kernel32" _
    (lpFileTime As FILETIME, _
    lpSystemTime As SYSTEMTIME _
    ) As Long
'
Public Const FILE_ATTRIBUTE_READONLY = &H1
Public Const FILE_ATTRIBUTE_HIDDEN = &H2
Public Const FILE_ATTRIBUTE_SYSTEM = &H4
Public Const FILE_ATTRIBUTE_DIRECTORY = &H10
Public Const FILE_ATTRIBUTE_ARCHIVE = &H20
Public Const FILE_ATTRIBUTE_NORMAL = &H80
Public Const FILE_ATTRIBUTE_TEMPORARY = &H100
Public Const FILE_ATTRIBUTE_COMPRESSED = &H800
'
Type FILETIME
    LowDateTime          As Long
    HighDateTime         As Long
End Type
Type WIN32_FIND_DATA
    dwFileAttributes     As Long
    ftCreationTime       As FILETIME
    ftLastAccessTime     As FILETIME
    ftLastWriteTime      As FILETIME
    nFileSizeHigh        As Long
    nFileSizeLow         As Long
    dwReserved0          As Long
    dwReserved1          As Long
    cFileName            As String * 260
    cAlternate           As String * 14
End Type
Type SYSTEMTIME
    wYear As Integer
    wMonth As Integer
    wDayOfWeek As Integer
    wDay As Integer
    wHour As Integer
    wMinute As Integer
    wSecond As Integer
    wMilliseconds As Integer
End Type
'
Public Function Findfile(xstrfilename) As WIN32_FIND_DATA
    Dim Win32Data As WIN32_FIND_DATA
    Dim plngFirstFileHwnd As Long
    Dim plngRtn As Long
    
    plngFirstFileHwnd = FindFirstFile(xstrfilename, Win32Data)
    If plngFirstFileHwnd = 0 Then
        Findfile.cFileName = "Error"
    Else
        Findfile = Win32Data
    End If
    plngRtn = FindClose(plngFirstFileHwnd)
End Function