LDUpc12()           Creates an UPC 12 pseudo barcode

   LDUpc12(cString)

         Arguments   cString is the string that will be translated to
                     barcode.


           Returns   pseudo barcode

       Description   Creates an pseudo barcode.
                     Valid characters for input are only digits.
                     The length of cString has to be exactly 12 characters.


          Examples
                     // create a UPC 12 barcode
                     cBar := LDUpc12("123456789012")