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Home arrow CGI
CGI Applications



CGI
  • A CGI (Common Gateway Interface) Application is an application that a WWW server can execute. The easiest way to create barcodes on your web server is to use a CGI application that generates barcodes. It is enough to install just one executable file on the server.
    Embedding a barcode into an HTML page is as easy as using IMG tags.
  • Our CGI applications are written in C++ and are executable files, which ensures higher speed and lower load for the web server.
    You can use our CGI applications both on the Windows platform and on Linux with either IIS or Apache servers.
  • Here you can test our barcode CGI applications online.


Using the CGI application
Install the CGI application, see below.
You can use this application right after that. Enter the address of your barcode CGI application into the browser address bar and you should see the barcode image.
You can see a sample DataMatrix barcode below.

Using Barcode CGI application

You can specify parameters to customize the barcode. For example, use the data parameter to encode the string "HelloWorld" in DataMatrix.

http://localhost/test/dmtxcgi?data=HelloWorld

See the corresponding description for more detailed information about the parameters of the CGI application (click CGI in the menu to the left and then, for example, click DataMatrix).

You can use the barcode CGI generator in an IMG tag of your HTML page.
For example:
<html>
<head>
<title>Barcode CGI generator</title>
<body>
<h2>Using Barcode CGI generator</h2>
<img src="http://localhost/test/dmtxcgi?data=1234567&w=120&h=120" alt="">
</body>
</html>
You will see a page like the one shown below.

Using Barcode CGI application in the HTML IMG tag


Installing the CGI application on a Linux (Apache) server
Download the necessary CGI application from our site:

Upload the CGI application in the binary mode to your server (for example, to the cgi-bin directory).
Set the execution permission (CHMOD) to 755, for example.
You can use the barcode CGI generator right after that.


Installing the CGI application on a Windows (IIS) server
We will go through the installation of the barcode CGI generator onto the server IIS 6.0. Some variations are possible if you install it on other servers. Download the necessary CGI application from our site:

Create a Virtual Directory and copy the file of the CGI application to it. Set "Execute permissions" in the properties of the Virtual Directory as shown in the picture below. It is better to use a separate folder for CGI applications.

Setup IIS 6.0 barcode execute permissions

Set the security properties of the file as shown in the picture. The account the file of the CGI script will run under must have the Execute permission. See the picture below. If you do not do it, you will get the following error:
HTTP Error 401.3 - Unauthorized: Access is denied due to an ACL set on the requested resource.
Setup CGI file execute permissions

And the last. You must add CGI applications to the list of allowed "Web Service Extensions". If you do not do it, you will get error 404:
HTTP Error 404 - File or directory not found.

To do it, start Internet Information Service (IIS) Manager, click "Web Service Extensions" and add the CGI application as shown in the picture.
Add bar code CGI application into the IIS 6.0 Web Service Extensions

Also, you can allow "All Unknown CGI Extensions", but we do not recommend that you do it for security reasons.
You can also find information about installing CGI onto the Microsoft IIS server on the Microsoft site.
Configuring CGI Applications (IIS 6.0)
Installing CGI Applications in IIS 6.0 (IIS 6.0)
Configuring the Maximum Number of Concurrent CGI Requests (IIS 6.0)
Configuring CGI Application Timeouts (IIS 6.0)



 

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