Binaryworld - IsStringLower - Determine whether a string contains only lowercase cha ... [ VB -> String ]

Private Declare Function IsCharLower Lib "user32" Alias "IsCharLowerA" (ByVal _
  cChar As Byte) As Boolean

' Check is the specified string is composed only by lower case characters (no
' digits and no special chars)
' Example:
'  MsgBox "Is lower case? " & IsStringLower("hello")
'  MsgBox "Is lower case? " & IsStringLower("heLlo")
Public Function IsStringLower(ByVal sText As String) As Boolean
  Dim i As Integer

  IsStringLower = True

  ' for each char in the string
  For i = 1 To Len(sText)
    ' if not lower case, set False as return value and exit the for loop
    If IsCharLower(Asc(Mid$(sText, i, 1))) = False Then
      IsStringLower = False
      Exit For
    End If
  Next i

End Function