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Questions tagged [qr-code]

QR code is an ISO-standardized two-dimensional barcode format.

Here is a sample QR-Code, pointing to Tag wiki qr-code

Simple QR Code

A Qr-code decoder has many specific patterns to recognize how to read the QR-code

Eyes

Eyes Qr code

Alignment

Alignment

Timing

Timing

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Bluetooth Secure Simple Pairing (SSP) using QR code as Out of Band (OOB) channel

I have a Windows 7 application, which uses Stollmann SDK to successfully bond PC with Android. The bidirectional exchange of Bluetooth MAC address, hash and randomizer is carried out out of band via NFC: The source code of the Windows application…
Alexander Farber
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Does anyone know of a C/C++ Unix QR-Code library?

I'm looking for a QR-Code library for C/C++, not Java or .Net please. Anyone knows of one? Note: There was a similar question a while back however but it didn't get answered properly.
Robert Gould
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Scan barcode from an image in gallery android

I'm creating a android project, main feature is scan barcode. I'm tried integrate with Zxing library into my project, and it's work fine. However, it's seems not support scan barcode from an available image in gallery of android devices. How i can…
MrSiro
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Unicode Encoding and decoding issues in QRCode

I am trying to generate UTF-8 QRCode so that I can encore accents and Unicode characters. To test it, I am using many decoding solution : http://zxing.org/w/decode.jspx - The zxing project also used in…
Natim
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QR code reading with camera - Android

I am currently researching to build an alarm clock application in Android. I am utterly and completely new to programming with QR codes. I know nothing about it. But right now, I want to find out the feasibility of creating an application with QR…
Johnathan Au
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create QR code to send email on both iPhone and Android

I am trying to create a business card with a QR code that someone can scan and write an email to me. I want the QR code to pre-populate my email address and the subject. I tried the solution in this post (this post is the best one that I…
user709903
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Generate QR code with Xamarin.Forms and Zxing

I've seen alot about this online (old posts) but nothing seems to work for me. I'm trying to generate a QR code out of a string and display it in the app. Here's what i had in the beginning qrCode = new ZXingBarcodeImageView { BarcodeFormat =…
Aytee
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Launch App or Play Store by scanning QR code

I have an Android app with package name like my.test.app. I want to generate a QR code, which: If my app is installed: Open the app If not installed yet: Open the app page in PlayStore Is there a possible way to do this, so that any Android QR…
D. Müller
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Add custom image or text to QR code generated by ZXing.Net

I use ZXing.Net library to generate a QR code image - At the top of my class: [System.Runtime.InteropServices.DllImport("gdi32.dll")] public static extern bool DeleteObject(IntPtr hObject); My method: protected void…
Alexander Farber
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Generating a Simple QR-Code with just HTML

I came across this APIserver to generate the QRCode but I was wondering is it possible to just use HTML to generate the QRcode for example this is what I was thinking
Sidney
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QR Code integration in jasperReport

I am generating the JasperReport for my billing desktop application using JAVA but, I can't see the QR Code icon in the report in jasper 6.0.3 version; In the preview it is showing the QR Code, but not in the real report. Please can anyone suggest…
AngelJanniee
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How to create a QR Code reader for iOS

I am developing an app for our local business. I already have the live camera in a UIImageView, now I need to know how to read QR codes from the UIImageView and display the content (0000-KKP0-2013) in a label. So basically I need a QR code scanner…
David Gölzhäuser
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How to Create QRCode using Java (J2SE)

How to create QRcode image using normal j2se. Any APIs or classes are available to do this?
user1206286
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Python - Detect a QR code from an image and crop using OpenCV

I'm working on a project using Python(3.7) and OpenCV in which I have an Image(captured using the camera) of a document with a QR code placed on it. This QR code has 6 variables respectively as: Size of QR code image Top Right Bottom Left Unit …
Abdul Rehman
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AVCaptureMetadataOutput().rectOfInterest not Working

I am building a UIView that has an overlaid box and the end-goal is to have the QR Code reader only fire when the QR falls within the box. I know that I need to set the .rectOfInterest() to be the same as the yellow box, but in the current…
Caleb Rudnicki
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