Free Web Services - Herong's Tutorial Examples - v2.11, by Dr. Herong Yang
Code39 - Usage Description
This section describes the free Web service Code39 provided by WebserviceX.NET. Code39 allows you to generate bar code images in Code 39 (also called Code 3 of 9) format.
Code39 - A free Web service that generates bar code images in Code 39 (also called Code 3 of 9) format.
Technical information on the Web service:
The Code 39 specification defines 43 characters, consisting of uppercase letters (A through Z), numeric digits (0 through 9) and a number of special characters (-, ., $, /, +, %, and space). An additional character (denoted '*') is used for both start and stop delimiters. Each character is composed of nine elements: five bars and four spaces. Three of the nine elements in each character are wide (binary value 1), and six elements are narrow (binary value 0). The width ratio between narrow and wide can be chosen between 1:2 and 1:3.
Create a SoapUI project called "Barcode" with WSDL at "http://www.webservicex.net/barcode.asmx?WSDL". You will see "Code39" displayed in the list of operations.
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