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jQWidgets jqxQRcode backgroundColor Property

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jQWidgets is a JavaScript framework for making web-based applications for PC and mobile devices. It is a very powerful, optimized, platform-independent, and widely supported framework. The jqxQRcode is used to indicate a widget that can display QR codes as well as possesses API in order to approve, export, and also personalize them.

The backgroundColor property is used to set or return the background color of the displayed jqxQRcode element. It is of string type and its default value is “white”.

Syntax:

  • Set the backgroundColor property:
$('Selector').jqxQRcode({ backgroundColor: "red" });
  • Return the backgroundColor property:
var backgroundColor = $('Selector').jqxQRcode('backgroundColor');

 

Linked Files: Download jQWidgets from the given link. In the HTML file, locate the script files in the downloaded folder.

<link rel=”stylesheet” href=”jqwidgets/styles/jqx.base.css” type=”text/css” />
<script type=”text/javascript” src=”scripts/jquery-1.11.1.min.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxqrcode.js”> </script>
<script type=”text/javascript” src=”jqwidgets/jqxbuttons.js”> </script>

Example 1: The below example illustrates the jqxQRcode backgroundColor property in jQWidgets.

HTML




<!DOCTYPE html>
<html lang="en">
  
<head>
    <link rel="stylesheet" 
          href="jqwidgets/styles/jqx.base.css" 
          type="text/css" />
    <script type="text/javascript" src=
            "scripts/jquery-1.11.1.min.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxcore.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxqrcode.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxbuttons.js">
    </script>
</head>
  
<body>
    <center>
        <h1 style="color:green">
            GeeksforGeeks
        </h1>
  
        <h3>
              jQWidgets jqxQRcode backgroundColor Property 
          </h3>
        <div id="jqxq"></div>
        <input type="button" style="margin:29px;" 
               id="jqxbtn" value="Click here" />
        <div id="log"></div>
    </center>
    <script type="text/javascript">
        $(document).ready(function () {
            $("#jqxq").jqxQRcode({
                backgroundColor: "purple",
            });
            $("#jqxbtn").jqxButton({
                width: 280
            });
            $("#jqxbtn").on("click", function () {
                var bcl = $('#jqxq').jqxQRcode('backgroundColor');
                $('#log').text(bcl);
            });
        });
    </script>
</body>
</html>


Output:

 

Example 2: The following is another example of the jqxQRcode backgroundColor property in jQWidgets.

HTML




<!DOCTYPE html>
<html lang="en">
  
<head>
    <link rel="stylesheet" 
          href="jqwidgets/styles/jqx.base.css" 
          type="text/css" />
    <script type="text/javascript" src=
            "scripts/jquery-1.11.1.min.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxcore.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxqrcode.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxbuttons.js">
    </script>
</head>
  
<body>
    <center>
        <h1 style="color:green">
            GeeksforGeeks
        </h1>
  
        <h3>
              jQWidgets jqxQRcode backgroundColor Property 
          </h3>
        <div id="jqxq"></div>
        <input type="button" style="margin:29px;" 
               id="jqxbtn" value="Click here" />
        <div id="log"></div>
    </center>
    
    <script type="text/javascript">
        $(document).ready(function () {
            $("#jqxq").jqxQRcode({
                backgroundColor: null,
            });
            $("#jqxbtn").jqxButton({
                width: 280
            });
            $("#jqxbtn").on("click", function () {
                var bcl = $('#jqxq').jqxQRcode('backgroundColor');
                if (bcl === null) {
                    $('#log').text("Null!");
                }
                else {
                    $('#log').text("Not null!");
                }
            });
        });
    </script>
</body>
</html>


Output:

 

Reference: https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxqrcode/jqxqrcode-api.htm?search=



Last Updated : 22 Sep, 2022
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