Snippet Library

Option Explicit
'
Private Type FILETIME
    dwLowDate  As Long
    dwHighDate As Long
End Type

Private Type SYSTEMTIME
    wYear   As Integer
    wMonth   As Integer
    wDayOfWeek As Integer
    wDay   As Integer
    wHour   As Integer
    wMinute  As Integer
    wSecond  As Integer
    wMillisecs As Integer
End Type

Private Const FILE_SHARE_READ = &H1
Private Const FILE_SHARE_WRITE = &H2
Private Const GENERIC_WRITE = &H40000000
Private Const OPEN_EXISTING = 3

Private Declare Function CloseHandle Lib "kernel32" _
        (ByVal hObject As Long) As Long
Private Declare Function CreateFile Lib "kernel32" _
        Alias "CreateFileA" (ByVal lpFileName As String, _
        ByVal dwDesiredAccess As Long, ByVal dwShareMode _
        As Long, ByVal lpSecurityAttributes As Long, ByVal _
        dwCreationDisposition As Long, ByVal _
        dwFlagsAndAttributes As Long, ByVal hTemplateFile _
        As Long) As Long

Private Declare Function LocalFileTimeToFileTime Lib _
        "kernel32" (lpLocalFileTime As FILETIME, lpFileTime _
        As FILETIME) As Long
Private Declare Function SetFileTime Lib "kernel32" _
        (ByVal hFile As Long, ByVal MullP As Long, ByVal _
        NullP2 As Long, lpLastWriteTime As FILETIME) As Long
Private Declare Function SystemTimeToFileTime Lib _
        "kernel32" (lpSystemTime As SYSTEMTIME, lpFileTime _
        As FILETIME) As Long

Sub Main()

    Call SetFileDate("c:autoexec.bat",   "10/16/96 12:30 pm")

End Sub


Sub SetFileDate(sFileName As String, sDate As String)

    Dim hFile As Long
    Dim lResult As Long
    Dim udtSysTime As SYSTEMTIME
    Dim udtFileTime As FILETIME
    Dim udtLocalTime As FILETIME

    With udtSysTime
        .wYear = Year(sDate)
        .wMonth = Month(sDate)
        .wDay = Day(sDate)
        .wDayOfWeek = WeekDay(sDate) - 1
        .wHour = Hour(sDate)
        .wMinute = Minute(sDate)
        .wSecond = Second(sDate)
    End With

    lResult = SystemTimeToFileTime(udtSysTime, _
            udtLocalTime)
    lResult = LocalFileTimeToFileTime(udtLocalTime, _
            udtFileTime)

    hFile = CreateFile(sFileName, GENERIC_WRITE, _
            FILE_SHARE_READ _
            Or FILE_SHARE_WRITE, ByVal 0&, OPEN_EXISTING, _
            0, 0)

    lResult = SetFileTime(hFile, ByVal 0&, ByVal 0&, _
            udtFileTime)

    Call CloseHandle(hFile)

End Sub;