qr-code

Is there any QR Encoding Library in Cocoa? [closed]

懵懂的女人 提交于 2019-12-04 15:11:44
Closed. This question is off-topic . It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . I have to development an QR Generator in Cocoa. but currently I was used QR Library for iPhone and ported to Cocoa by me. but just found many bugs since iPhone version in Generator Algorithm. then, Is there any QR Encoding Library in Cocoa ? I've mostly only seen Objective-C libraries that read various code types. Don't forget, though, that Objective-C is a superset of C ... http://fukuchi.org/works/qrencode

“Unable to find vcvarsall.bat” error when trying to install qrcode-0.2.1

↘锁芯ラ 提交于 2019-12-04 14:03:36
Please help me to solve this error C:\Python26\Lib\site-packages\pyqrcode\encoder>python setup.py install running install running bdist_egg running egg_info writing qrcode.egg-info\PKG-INFO writing top-level names to qrcode.egg-info\top_level.txt writing dependency_links to qrcode.egg-info\dependency_links.txt package init file 'qrcode\__init__.py' not found (or not a regular file) writing manifest file 'qrcode.egg-info\SOURCES.txt' installing library code to build\bdist.win32\egg running install_lib running build_py running build_ext building 'qrcode.Encoder' extension error: Unable to find

iOS: ZBar SDK unicode characters

余生颓废 提交于 2019-12-04 13:31:31
问题 When scanning QR codes with ZBar the string resulting from the process does not display unicode characters properly. The word Márti encoded as a QR code by any free to use QR code generator (like http://qrcode.kaywa.com) would result in Mテ。rti . In other SO questions (1, 2) it was suggested to embed a BOM at the start of the resulting string, but doing this: NSString *qrString = [NSString stringWithFormat:@"\xEF\xBB\xBF%@",symbol.data]; or this: NSString *qrString = [[NSString alloc]

QR Code decoder library for python

孤者浪人 提交于 2019-12-04 12:18:15
I am trying to build an application in python that would encode and decode QR codes. I am successful with the encoder, but i don't find libraries(but zbar ) for decoding in python. I am using Python 2.7 in a Windows 7 system. I am not able to install zbar in my system. I installed the dependency module required by the library and even then I end up with so many errors, whenever I try to install it - so many syntax errors in zbar.h and in zbarmodule.c. I don't understand why and clueless about what the problem is. I get the following errors while installing zbar C:\Users\vijay>easy_install zbar

Decoding a QR code in an Android application?

岁酱吖の 提交于 2019-12-04 09:49:42
问题 In Android, Using ZXing we can scan a QR code through phone camera and decode it. But, in my scenario, the QR code image is stored in the phone itself and I need to decode it. Is there anyway to decode a QR image in this manner? 回答1: You can use ZXing code for this. Check out DecodeHandler.java. 回答2: You can simply use the Mobile Vision API for decoding a QR Code from Image.It is very accurate and can detect more than one Qr code over image. You have to include the following library inorder

How to scan Qr code from an image picked with UIImagePickerController in iOS

风格不统一 提交于 2019-12-04 09:41:56
I am able to scan qr code with camera without using any external libraries like ZBAR or ZXING. Now what I actually want is to let the user upload an image from photo library and get the qr code scanned from that uploaded image. I know how to use UIImagePickerController (used it before). What I want to ask is that, How can I scan qr code from an uploaded image (without using the camera) You can suggest some code (.h / .m files) that I can add in my project. Please don't suggest me any external libraries like ZBAR or ZXING. I know you might have found solution for this but i am replying to the

Secure / Encrypted QR Codes [closed]

筅森魡賤 提交于 2019-12-04 08:42:12
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . Is there an application where you can generate encrypted QR Codes? I havent a lot of literature on encrypting QR codes out there. We are looking to implement something that clients can send us encrypted information and we scanning them on our site. Has any of you been involved in a project such as this? 回答1:

Nodejs - How to show qr-image result in view

ぃ、小莉子 提交于 2019-12-04 08:29:37
I use qr-image plugin for Nodejs to generate a QR code and it works pretty good. The problem is showing result image in ejs. var express = require('express'); var router = express.Router(); var qr = require('qr-image'); router.get('/', function(req, res) { var code = qr.image("text to show in qr", { type: 'png', ec_level: 'H', size: 10, margin: 0 }); res.type('png'); code.pipe(res); // res.render('index', { title: 'QR Page', qr: code }); }); When i uncomment last line, nodejs crashs. How to send code to view as a variable? Update: This code returns [object Object] in result page. var code = qr

Change QR Scanner orientation with ZXING in Android Studio

﹥>﹥吖頭↗ 提交于 2019-12-04 07:44:51
I hope you can help me with this. Im using the Zxing Embedded Library in order to use the QR scanner, the problem is that is on Landscape mode and I would like to change it to Portrait. I have this on the dependencies of my Graddle compile 'com.journeyapps:zxing-android-embedded:2.0.1@aar' compile 'com.journeyapps:zxing-android-integration:2.0.1@aar' compile 'com.google.zxing:core:3.0.1' and I have this in my java class to activate the scanner with a button... public void scanQR(View view){ IntentIntegrator integrator = new IntentIntegrator(this); integrator.setDesiredBarcodeFormats

ZXing: Finding the bounding rectangle of Barcode

梦想与她 提交于 2019-12-04 07:43:41
I was experimenting with ResultPoints which returns the points related to the barcode in the image. For a QR Code, ResultPoints returns a set of 4 points which are the coordinates of the four boxes at each corner of the QR Code. When I experimented the same with a Barcode, it returns two points which denote the width of the barcode. How do I find the bounding rectangle of the barcode? Is there any way by which I can calculate the coordinates of the top left corner and bottom right corner of the barcode using the ResultPoints array? After a bit of research I found the class