UDF for Data into 128 B barcode problem
 

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.

UDF for Data into 128 B barcode problem
 

Safi,

Make sure you are using the same Code 128 font that came with the
function. Every font is different.

Alek Szymanski
http://www.barcodewiz.com


Safi wrote:
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.