by Anonymous (267 Submissions)
Category: Files/File Controls/Input/Output
Compatability: Visual Basic 3.0
Difficulty: Unknown Difficulty
Originally Published: Mon 28th December 1998
Date Added: Mon 8th February 2021
Rating: 
(1 Votes)
Get a file extension
VBcoders
' FUNCTION: Extension
'
' Extracts the extension portion of a file/path name
'
' IN: [strFilename] - file/path to get the extension of
'
' Returns: The extension if one exists, else vbnullstring
'
Function Extension(ByVal strFilename As String) As String
Dim intPos As Integer
Extension = vbNullString
intPos = Len(strFilename)
Do While intPos > 0
Select Case Mid$(strFilename, intPos, 1)
Case "."
Extension = Mid$(strFilename, intPos + 1)
Exit Do
Case Else
End Select
intPos = intPos - 1
Loop
