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Questions tagged [zbar-sdk]

for questions specific to iPhone. ZBar is an open source (GNU LGPL 2.1) software suite for reading bar codes from various sources, such as video streams, image files and raw intensity sensors. It supports many popular symbologies (types of bar codes) including EAN-13/UPC-A, UPC-E, EAN-8, Code 128, Code 39, Interleaved 2 of 5 and QR Code.

ZBar is an open source software suite for reading bar codes from various sources, such as video streams, image files and raw intensity sensors. It supports many popular symbologies (types of bar codes) including EAN-13/UPC-A, UPC-E, EAN-8, Code 128, Code 39, Interleaved 2 of 5 and QR Code. ZBar supports several platforms: Windows, Linux, iPhone.

ZBar is used widely in iOS applications and has an SDK specifically for iphone devices.

ZBar SDK supports the iPhone 3GS and iPhone 4, as they have a camera with auto-focus. The ZBar library does not support the iPhone 3G. At the same time ZBar supports iPad 2 camera, in spite of absense of auto-focus camera.

ZBar is licensed under the GNU LGPL 2.1 to enable development of both open source and commercial projects.

Use this tag for ZBar SDK for iPhone issues. For other platforms there is tag.

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ZBar SDK (iOS): Zbar not scanning when I use a subview

I've used successfully used ZBar in other projects, but am having problems implementing it into my latest project. It is set up as a tabbed view app, where the first tab is the scanner and the second outputs the results. To get around the issue of…
user1486548
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Zbar sdk scanner not working properly

In my application i have integrated Zbar SDK scanner, while scanning usually its working fine but my case is some times didfinishpickingmediawithInfo: delegate method firing twice. Here is my code which is in a singletone…
Ganapathy
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My qrcode scanner not able to scan specific URL containing special character

I am able to scan all qrcodes for the urls however some urls containing special characters such as "%20" are not getting scanned and it crashes the app. I am using ZBarSDK for scanning and ZBarReaderView is the scanner.…
Saty
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ZBarReader Scans Only UPC_A format in iOS 6

I am developing BarCode reader app in iOS 6, I am using ZBar sdk, i developed app using this Tutorial.. when i scans any barcode it scans only product of UPC format, but it doesn't scans the product of any other format like EAN_13 or Code_128…
Krunal
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How many alphanumeric charecters can be embedded in a QR Code?

As per the Wiki below QRC Storage Data the maximum number of alphanumeric charecters that can be stored is 4,296. But while trying it out, I'm unable to proceed for more than approx 2220 charecters at an error correction level of L. Is alphanumeric…
Ahmed Faisal
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Wrong decoding of barcodes also in ZBAR SDK example

I am using the ZBarSDK with a project for iPhone. I am using ZBar as an embeded reader. Basically hooking up a UIView in Interface Builder. Changing the class to ZBarReaderView and implementing the delegate method -(void)readerView:…
Joseph
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ZBarReader QR Code detection time

In my app i'm using ZBarReader, and i can able to detect the QRCode and BarCode using the code ZBarReaderViewController *reader = [ZBarReaderViewController new]; reader.readerDelegate = self; reader.supportedOrientationsMask =…
Harish
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BarCode Reader Not detecting When I place it on realtime objects

I am using this code to detect the barcode . The code is - (IBAction) scanButtonTapped { NSLog(@"TBD: scan barcode here..."); // ADD: present a barcode reader that scans from the camera feed ZBarReaderViewController *reader =…
sri
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QR code integration

I am facing some problem after integrating ZBar framework for scanning QRCodeRead on my apps. My client wants, QRCode Scanner will be in a fixed frame and must not be a PresentModalView. So I write code for fixed frame QRCode Scanner and added the…
Lutful Kabir
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Change the green border for an embedded scanner (ZBar)

So I have a ZBarView within a UIViewController (for an embedded scanner) and I was wondering how I could change the Green Border to have it something like this? #import "ZBarSDK.h" @interface ScanViewController : UIViewController…
abisson
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Issue with initial focus while scanning QR-code with ZBar

I created an app which uses ZBar to scan QR-codes. While testing I noticed that there are problems with auto-focus. When I aim my iPad at a QR-code prior to starting the scan, it shows a green rectangle around the QR-code and it doesn't scan. I need…
Stephan Celis
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Generate BarCode for UIImageView

I want to generate a barcode on some UIImage or UIImageView. Is it possible.I am using This for generating the barcode. Please help me. Thanks
ios developer
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ZBarReadview with custom size from StoryBoard,but when it's called,it's size is not I set

i've got a ZBarReaderView created from storyboard with 300*90 px which is shown as roughly 200*400 px because ZBarReaderView doesn't take it's size too serious... I Declare my IBOutlets as so: @interface MYQViewController : UIViewController <…
jsl_1982
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modifying the settings of zbar-sdk ios

I am trying to build an app which scans QR code and barcode of a particular object for which purpose I am using zbar sdk. I have used an image view and a text view to display the contents of the objects I scanned. I want a beep sound after I scan a…
sin
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why don't my images from ZBarCameraSimulator get processed?

In the simulator I'm using ZBarCameraSimulator to load a picture with a qrcode in it. This never invokes the delegate method though - (void) readerView:(ZBarReaderView*)view didReadSymbols:(ZBarSymbolSet*)syms …
v_y
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