DOS File Names

This is related to

http://forums.vb-world.net/showthrea...threadid=93712

but I didnt want to hijack the thread.

I know from the above thread that you can convert a long file name to a dos file name.

Is there a way to convert a dos file name to a long file name (assuming there is a corresponding long name)?

Thanks

Yep, the GetFullPathName API...

VB Code:

Declare Function GetFullPathName Lib "kernel32" Alias "GetFullPathNameA" (ByVal lpFileName As String, ByVal nBufferLength As Long, ByVal lpBuffer As String, ByVal lpFilePart As String) As Long

http://www.allapi.net/api/api158.php

Thanks!

Cant seem to get a test to work. Any idea whats wrong?

VB Code:

Private Declare Function GetFullPathName Lib "kernel32" _
Alias "GetFullPathNameA" (ByVal lpFileName As String, _
ByVal nBufferLength As Long, ByVal lpBuffer As String, _
ByVal lpFilePart As String) As Long
 
Private Sub Command2_Click()
    Dim Buffer As String, Ret As Long
    Buffer = Space(255)
    Ret = GetFullPathName("C:\MYDOCU~1\BOOK1.XLS", 255, Buffer, "")
    Buffer = Left(Buffer, Ret)
    Text4.Text = Buffer
End Sub

Try this example...

VB Code:

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
    Dim lRet As Long
    Dim sLongFilename As String
    sLongFilename = String$(1024, " ")
    lRet = GetLongPathName(sShortFilename, sLongFilename, Len(sLongFilename))
    
    If lRet > Len(sLongFilename) Then
        sLongFilename = String$(lRet + 1, " ")
        lRet = GetLongPathName(sShortFilename, sLongFilename, Len(sLongFilename))
    End If
    
    If lRet > 0 Then
        GetLongFilename = Left$(sLongFilename, lRet)
    End If
    
End Function

Courtesy of Matt...

Works great!

Thanks Chrijk (and Matt)!!!!!!