This is a port of Lazarsoft’s qrcode reader
npm install qrcode-reader
QrCode=require(‘qrcode-reader’);
Create a new instance of QrCode:
qr= new QrCode();
Set it's callback to a custom function
qr.callback= function(result){alert(result)}
Decode an image by it's URL or Data URI:
qr.decode(url or DataURL);
Decode an image by context.getImageData: Works with web workers.
var context = canvas.getContext("2d");
var data = context.getImageData(0, 0, width, height);
qr.decode(data);
Decode from canvas with "qr-canvas" ID:
qr.decode()
If you want, you can build the script yourself.
First clone the repository, then from the directory of this repository, do :
npm install
gulp compile
You will have one jsfile called index.js that you can run from node.
You can then run the tests by running
npm test
After building yourself the script index.js, you can do :
npm install --global browserify
browserify -o qrcode.js -s QrCode index.js
This way if you do in your HTML :
<script src="qrcode.js"></script>
you will have access to the global variable `QrCode`