Function Format_Code128 (InString As String) As String
Dim Sum As Integer, i As Integer
Dim Checksum As Integer, Checkchar As Integer
Dim MyString As String, CVal As Integer

' Initialize running total with value of
' Subset B start character

Sum = 104

' Scan the string and add character value times position

For i = 1 To Len(InString)

' Copy one character from InString position i to MyString

MyString = Mid$(InString, i, 1)

' Get the numeric value of the character and subtract
' 32 to shift (the space character, ASCII value 32, has
' a numeric value of 0 as far as Code 128 is concerned)

CVal = Asc(MyString) - 32

' Add the weighted value into the running sum

Sum = Sum + (CVal * i)
Next i

' Calculate the Modulo 103 checksum

Checksum = Sum Mod 103

' Now convert this number to a character.

If Checkdigit = 0 Then
Checkchar = 174
ElseIf Checkdigit < 94 Then
Checkchar = Checkdigit + 32
Else
Checkchar = Checkdigit + 71
End If

' Now format the final output string: start character,
' data, check character, and stop character

MyString = Chr(162) + InString + Chr(Checkchar) + Chr(164)
Format_Code128 = MyString
End Function

Hi,

I have code above User Define funtion in Excel and converted my data
(example CCF001257) into code 128 B of Barcode symbology..the UDF returns
value as
¢CCF001257®¤ but when in change it into code 128 font with 20 font size the
scanner does not reads it.. where is the problem lies ...

Regards,

safi.