A barcode reader (or barcode scanner) is an electronic device for reading printed barcodes. It consists of a light source, a lens and a light sensor translating optical impulses into electrical ones.
Questions tagged [barcode-scanner]
2511 questions
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ZPL - how can we increase width of ^BC (Code 128) bar code
Am doing a formatting of barcode label.
We are using Zebra Programming Language , ^BC (Code 128) bar code
As i increase the size of ^FD Field Data , the barcode width is increasing.
But how can i print a broader bar code for a fixed small length…

zod
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7 answers
Android - Barcode Scanning, Options? Zxing?
I want to create an application for Android that will be able to scan barcodes, get the information contained within the barcode and then be able to use that information in some way.
I have no idea how to create a barcode scanner so I went Googling…

Donal Rafferty
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Is there a good free barcode scanning SDK for non-autofocus cameras on iOS?
I understand there are many questions similar to this on StackOverflow, but this question is very specific so I'm not looking for the typical "Zbar" answer here.
I use the Zbar SDK for barcode scanning (UPC, EAN) on devices with autofocus cameras.…

Ethan Allen
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Xamarin forms Barcode Scanner
I couldn't find any working source of Xamarin forms barcode scanner. Is there any working sample of Xamarin forms barcode scanner using zxing library?

Aneesh.A.M
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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 image and it works fine. But not with QR images.
Any…

fiberOptics
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android get barcode scanner input without edittext
I have a physical barcode scanner and I want to get it's input, i.e the barcode, in the app without having a focused EditText.
I tried adding a KeyListener in my Activity. However, none of its implemented methods (onKeyUp, onKeyDown etc) was called.…

XeniaSis
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Android: Is there a way to implement the barcode scanner into an app?
So I'm working on a project, and I'm wondering if there is a way I can implement the barcode scanner into my android app? So it would go from my app, open the camera and take the "picture", get the info, and go back to my app with that info?

James
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Phonegap 3.0.0: BarcodeScanner Plugin
currently I'm trying to install the BarcodeScanner Plugin for Phonegap Version 3.0.0. I can't find any working documentation on how to install it correctly and I didn't figure it out myself.
So I would really appreciate any help!
Thank you in…

user1448982
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How to create barcode scanner (Android)?
Can someone tell me if creating barcode scanner app (for Android) is difficult? Is OpenCV library good start? Where can I find algorithm which clearly explains how to read barcodes? I will appreciate all good materials about this topic!
Thanks in…

Ziem
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How do I tell if keyboard input is coming from a barcode scanner?
On one computer I have both a regular keyboard and a barcode scanner which emulates a keyboard. When my app gets keyboard input, how can I determine whether that input is coming from the barcode scanner or the real keyboard?

mahboub_mo
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Default keyboard is not coming when Barcode Scanner Device is Connected by Bluetooth in IOS
I am facing issue with keyboard when barcode scanner device is connected using bluetooth.
Flow:
1) I have turned on Bluetooth, and connected barcode scanner device using bluetooth by entering displayed code in it to connect.
2) I am able to use…

Vidhyanand
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ZXing barcode scanner in custom layout in fragment
I develope ZXing barcode continuous scanner following this page on Android Studio.
My App build.gradle had include:
repositories {
mavenCentral()
maven {
url…

Neo
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With Zxing retiring for iOS, which barcode-scanner to switch to?
I have implemented ZXing to my iOS-app, however I am questioning it's maintainability as not long ago it was announced that ZXing to iOS is retiring:
Retiring C++, Objective C code
I've also read that there might be compatibility issues with the…

user1354603
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How do I distinguish between a scanner input and keyboard input in Javascript?
I have gone through answers and came across two ways which can help in distinguishing between scanner and keyboard inputs. It can be done through:
Time Based: Scanner inputs are faster than manual keyboard inputs.
Prefix Based: Append a prefix to…

shaivik
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Image classification in python
I'm looking for a method of classifying scanned pages that consist largely of text.
Here are the particulars of my problem. I have a large collection of scanned documents and need to detect the presence of certain kinds of pages within these…

Kyle
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