|
Function GetExtension(Filename As String)
Dim PthPos, ExtPos As Integer For i = Len(Filename) To 1 Step -1 ' Go from the Length of the filename, to the first character by 1. If Mid(Filename, i, 1) = "." Then ' If the current position is '.' then... ExtPos = i ' ...Change the ExtPos to the number. For j = Len(Filename) To 1 Step -1 ' Do the Same... If Mid(Filename, j, 1) = "\" Then ' ...but for '\'. PthPos = j ' Change the PthPos to the number. Exit For ' Since we found it, don't search any more. End If Next j Exit For ' Since we found it, don't search any more. End If Next i If PthPos > ExtPos Then Exit Function ' No extension. Else If ExtPos = 0 Then Exit Function ' If there is not extension, then exit sub. GetExtension = Mid(Filename, ExtPos + 1, Len(Filename) - ExtPos) 'Messagebox the Extension End If End Function 'You would use it as FileExt = GetExtension("c:\windows\vb\vb.exe") |