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Check for extended ASCII

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Submitted on: 1/21/2015 8:10:00 PM
By: Alex Bylund (from psc cd)  
Level: Beginner
User Rating: By 2 Users
Compatibility: VB 6.0
Views: 445
 
     Checks to make sure the contents of a TextBox or String are only standard ASCII; If it has any extended ASCII, the function will return False.
 
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'**************************************
' Name: Check for extended ASCII
' Description:Checks to make sure the contents of a TextBox or String are only standard ASCII; If it has any extended ASCII, the function will return False.
' By: Alex Bylund (from psc cd)
'
' Assumes:Use like this:
If Valid_ASCII(Text1) = False Then
 MsgBox "Invalid chars!"
 Exit sub
End If
'**************************************

Function Valid_ASCII(Text As String)
 For x = 1 To Len(Text)
If Asc(Mid(Text, x, 1)) > 126 Or Asc(Mid(Text, x, 1)) < 32 Then
 Valid_ASCII = False
 Exit Function
End If
 Next x
 Valid_ASCII = True
End Function


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