Questions tagged [qr-code]
QR code is an ISO-standardized two-dimensional barcode format.
qr-code
4,188
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Dynamically generating a QR code with PHP [closed]
I'm trying to generate QR codes on my website. All they have to do is have a URL in them, which a variable on my site will provide. What would be the easiest way to do this?
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How to decode a QR-code image in (preferably pure) Python?
TL;DR: I need a way to decode a QR-code from an image file using (preferable pure) Python.
I've got a jpg file with a QR-code which I want to decode using Python. I've found a couple libraries which ...
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How to generate a QR Code for an Android application? [closed]
I need to create a qrcode in my android application, and I need a library or source code that lets me create a QR Code in an Android app.
The library I need must:
not leave a watermark (like ...
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How much data / information can we save / store in a QR code?
I would like to use this script https://github.com/jeromeetienne/jquery-qrcode
(or is there even a better solution?)
What I like to do is "save" some small scripts or programs and even files like xml ...
user753676
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Free c# QR-Code generator [closed]
I'm looking for a free to use c# library/code to create barcodes. Secifically I need to be able to create QR-Code type barcodes. I'm looking for free to use (Open Source or just Free, etc.) not pay to ...
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Android, How to read QR code in my application?
In my application I need to read Qr code. I searched the net and found Zing codes however lots of developers had problem with using it and it seems it is buggy!
If i assume that my customers has qr ...
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How to create a QR code reader in a HTML5 website? [closed]
I was looking for possibility to create QR code reader in my HTML5 based web page. I've done some googling and all the links point me to the mobile applications.
Please help me with some pointers as ...
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QR code generation library in javascript [closed]
I'm currently looking for a js library that can encode text in qr codes. The only one I've been able to find so far seems broken, although other people claim to be using it. The sample page doesn't ...
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QR CODE max char length
I've read that QRCODES has about 4,290 alphanumeric chars limit (about 4kb).
Is it true and is there any way to increase their memory size?
I would like to have more space on if possible: P
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Mechanism behind QR code scanning of WhatsApp web/desktop app
I could not find any answers related to the working mechanism of QR code scanning used on WhatsApp Web.
How does the authentication happen when the phone (any smartphone running WhatsApp) scans the QR ...
user6361120
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How to generate a QR Code for Google Authenticator that correctly shows Issuer displayed above the OTP?
Warning: sharing your TOTP seed with third-parties breaks the very basic assumption of multi-factor authentication that the TOTP
seed is secret.
So, I'm aware of the documentation on this, found ...
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What open-source QR Code Generator would you recommend? [closed]
I'm looking for a library to generate QR codes in .NET I've stumbled across a few paid ones, but very few free ones that look any good. Anyone have experience with a good free open-source library?
...
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Alternative to zxing QR reader library for Java/Android? [closed]
Is there any other library other than Zxing that can be used to create a QR code reader EVEN IF IT'S NOT FREE.
of-course a free one will be great. but I'm also willing to pay to get a library that's ...
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Barcode scanner for mobile phone for Website in form [closed]
I have inventory maintenance website up and running. currently the back end users are manually typing the item id on the system and using to search and do their work. I would like to automate the ...
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QR code reader for iPhone [closed]
I want to create QR code reader based application.
Using which library, I can create my application ?
Note: I searched in google. Always I am getting zxing. I downloaded the zxing project. But the ...
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How to make QR code for BOTH Android Market and App Store [closed]
I have an app that exists in Android and iPhone stores. So I have two URLs for them (Market and AppStore), but I do not want to add two different QR codes to the homepage. Is there a way (online ...
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QR code (2D barcode) coding and decoding algorithms? [closed]
Looking for free/opensource code or description of algorithms to code (simple) and decode (hard) the 2D barcode QR code.
It doesn't seem like a trivial problem, but it's so popular in Japan that ...
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5
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How can you read QR Codes in PHP?
Is there a plain PHP implementation for decoding QR codes?
I have a faux-smartphone. One of those phones that parades as a smartphone but that I can't download any apps for, and I want to create an ...
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What is the spec for formatting data in QR codes? I can not find it anywhere
I'm specifically asking if, and what, is the specification for formatting the text inside a QR code - not how to generate a code (which I can do).
I need to put hCard data into a QR code, however I ...
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Is there a way to generate QR code image on iOS
Is there a standard way to generate a QR code and attach it to a mail item from iOS client app (no server code)?
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Aztec barcode vs QR-Code
I am trying to develop an application that will use tickets given the user the ability to validate them. I am wondering why I should choose Aztec barcode as many many companies have already chosen ...
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Android QRCode Scanner Library [closed]
What do we have out there available to us (if anything) that we can call for QR data discovery and extraction on an image?
While there have been plenty of posts thus far referencing the ZXing library ...
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QR Code encoding and decoding using zxing
Okay, so I'm going to take the off chance that someone here has used zxing before. I'm developing a Java application, and one of the things it needs to do is encode a byte array of data into a QR Code ...
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How do I use the metadataOutputRectOfInterestForRect method and rectOfInterest property to scan a specific area? (QR Code)
I am building a QR code scanner with Swift and everything works in that regard. The issue I have is that I am trying to make only a small area of the entire visible AVCaptureVideoPreviewLayer be able ...
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Reading barcodes with android
Hi I am developing an application for the android htc hero. I am looking into ways of using the inbuilt camer to read 2D barcodes and extract the string returned from the barcode. I have only recently ...
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QR Code possible data types or standards
I am developing an iOS Application for scanning QR Codes. I am successfully able to scan and get code from QR code.
Question:
My question is what are possible data types and format I can expect from ...
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Encode algorithm QR-code
Who knows how to generate qr-code?
And how to decorate like here http://mojiq.kazina.com/?
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Android Using ZXing Generate QR Code
I was having some problem when trying to generate QR code in Android Programming. Here is the Tutorial I followed. When my generate button on click, I am calling this method:
private void generateQR()...
user2531590
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answers
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QR Code generation in ASP.NET MVC [closed]
Is there a .NET API that generates QR Codes such as this one?
I'd like to display these on pages that I expect my users to print out.
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How to draw a QR code with Qt in native C/C++
QR in Qt
As a companion question to How to scan for QR codes with Qt, I want to know how to draw a QR code from native C/C++ code in my Qt5 based desktop app, but I could not find an example of how ...
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Share WiFi-Settings as QR-Code for WPA2 Enterprise
I have found several sources describing a String Format used to describe WiFi-Access Settings in the form of:
WIFI:T:WPA;S:mynetwork;P:mypass;;
(example taken from zxing documentation)
For basic ...
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QR Code Scanning in ios application
I need to integrate QR-code reader in app and found a tutorial for it.
I downloaded Z-bar sdk from this link.
Here is what I had done.
In the QRscannerViewController.m
-(IBAction)StartScan:(id) ...
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How to read QR code from static image
I know that you can use AVFoundation to scan a QR code using the device's camera. Now here comes the problem, how can I do this from an static UIImage object?
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Integrate ZXing QR code scanner without installing BarCode Scanner
I am trying to Integrate ZXing QR Code into my android app without installing BarCode Scanner app, I have followed the steps as:
1) Firstly I have downloaded ZXing.zip file and extract it
2)open the ...
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Why Don't Duplicate QR Codes Look The Same? [closed]
My understanding in that a QR Code contains the data that is being read, and it does not require an internet connection to interpret the code. If this is the case, why do I get a different QR Codes ...
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Android start application from QR Code with params
I want to know if it's possible in android to start application using QR Code reader. The things that I want to achieve is :
I create QR Code and after scanning it with QR Code reader I need to ...
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Is there a way to scan barcodes in Flutter?
Basically, I'm making an app that scans a QR code to connect to a server. Then, the app will scan the barcode of products and take pictures of the item and send them to the server. My question is the ...
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QR decoder that works on mac? [closed]
Anyone know a QR decoder that works on mac or that might be online? I just need to decode one single image.
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How to create QR code image with company logo [closed]
We are using a lot of QR code around our office. I would like to know if we can generate QR code with a small company logo in the middle. I have seen few examples online.
But I want it to generate ...
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Storing binary data in QR codes
I'm trying to store binary data in a QR code. Apparently QR codes do support storing raw binary data (or ISO-8859-1 / Latin1). Here is what I want to encode (hex):
d1 50 01 00 00 00 f6 5f 05 2d 8f 0b ...
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sample code to detect QRCode in an image
I use this code in C# to decode (not detect) a QRCode and it works:
LuminanceSource ls = new RGBLuminanceSource(image, image.Width, image.Height);
Result result = new QRCodeReader().decode(new ...
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How to scan QRCode in android
I found a tutorial on how to scan a barcode. But in my application I have to scan a QR code. How can I a scan QR code in Android?
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QR codes image generator in java (open source but no GPL)
I'm seeking an open source QR codes image generator component in java (J2SE), but the open source licence mustn't be a GPL licence (needs to be included in a close source project).
BTW, i can't ...
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JavaScript QR Code Reader - can it be done? Or, Remote Service?
I'm doing a bit of preliminary research on an upcoming project and I have a quick question that I figure I'll throw up here while I look elsewhere, in case anyone has any experience with this.
The ...
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How can I generate a circular qr-code like a messenger or a kik code?
How can you generate the codes like shown below:
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Google API - URL Shortener with PHP
My code is below. The URL shortening service works, but it doesn't when I insert my $POST. Does anyone know how to fix this my looking at the code?
// This is the URL you want to shorten
$longUrl = '...
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How can I generate QR images in Node.js without canvas?
I'm building a website for a client in Node.js and I need to generate QR-codes or Barcodes for the ticket system.
I've found a few modules, but all of them need an install like canvas, one way or ...
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How to read multiple qr codes from one image using zxing library
I am currently developing a scanner that reads multiple QR codes found in one image.
I manage to read the QR codes in the image but it's giving me inconsistent results. Assuming there are 4 QR codes ...
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how to resize Image in java?
Hello I have a QR code Image , and I want to resize it , when I try to resize it to a small image using this code , I always get a blury image , and the QR code is no longer valid when I scan it , but ...
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Working QR code scanner for PhoneGap
I have successfully followed this thread
Phonegap 3.0.0: BarcodeScanner Plugin
But it seems like it cannot scan Qr Code. Here is the screen shot from phone:
I have tried scanning a barcode ...
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