Convert "C:\Readm~1.txt" to "C:\Readme.txt"

Hi,

I need to change a short filename
to a long file name, how do I do
that?

Thanks!

Code:

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Public Declare Function GetLongPathName _
Lib "kernel32" Alias "GetLongPathNameA" (ByVal _
lpszShortPath As String, ByVal lpszLongPath As String, _
ByVal cchBuffer As Long) As Long


Public Function GetLongFilename(ByVal sShortFilename As String) As String
    'Returns the Long Filename associated wi
    '    th sShortFilename
    Dim lRet As Long
    Dim sLongFilename As String
    'First attempt using 1024 character buff
    '    er.
    sLongFilename = String$(1024, " ")
    lRet = GetLongPathName(sShortFilename, sLongFilename, Len(sLongFilename))
   
    'If buffer is too small lRet contains bu
    '    ffer size needed.


    If lRet > Len(sLongFilename) Then
        'Increase buffer size...
        sLongFilename = String$(lRet + 1, " ")
        'and try again.
        lRet = GetLongPathName(sShortFilename, sLongFilename, Len(sLongFilename))
    End If
   
    'lRet contains the number of characters
    '    returned.


    If lRet > 0 Then
        GetLongFilename = Left$(sLongFilename, lRet)
    End If
   
End Function

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In case your version of Kernel32 doesn't support the 'GetLongPathName' API, here is another function you can use.

Hope this helps.

Code:

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Private Function sLongName(strShortName As String) As String
'-----------------------------------------------   
'strShortName - the provided file name, fully qualified,
'this would usually be a short file name, but can be a long
'file name or any combination of long/short parts.
'
'RETURNS: the complete long file name, or "" if an error
'occurs an error would usually indicate that the file
'doesn't exist.
'
'USAGE: strResult = sLongName("C:\Readm~1.txt")
'-----------------------------------------------   

    Dim strTemp As String  'Temporary String Holder
    Dim strNew As String    'Hold New String
    Dim intHasBS As Integer 'Has Back Slash Flag
    Dim intBS As Integer    'Back Slash Position
    If Len(strShortName) = 0 Then Exit Function
    strTemp = strShortName


    If Right$(strTemp, 1) = "\" Then
        strTemp = Left$(strTemp, Len(strTemp) - 1)
        intHasBS = True
    End If
    On Error GoTo MSGLFNnofile

    If InStr(strTemp, "\") Then
        strNew = ""

        Do While InStr(strTemp, "\")

            If Len(strNew) Then
                strNew = Dir$(strTemp, 54) & "\" & strNew
            Else
                strNew = Dir$(strTemp, 54)

                If strNew = "" Then
                    sLongName = strShortName
                    Exit Function
                End If
            End If
            On Error Resume Next

            For intBS = Len(strTemp) To 1 Step -1
                If ("\" = Mid$(strTemp, intBS, 1)) Then
                    'found it
                    Exit For
                End If
            Next intBS
            strTemp = Left$(strTemp, intBS - 1)
        Loop
        strNew = strTemp & "\" & strNew
    Else
        strNew = Dir$(strTemp, 54)
    End If

MSGLFNresume:
    If intHasBS Then
        strNew = strNew & "\"
    End If
    sLongName = strNew
    Exit Function

MSGLFNnofile:
    strNew = ""
    Resume MSGLFNresume
End Function

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