C# Tutorial - QR Code Scanner using Webcam in C# | FoxLearn

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Creating QR Code Scanner, Read QR Code from Webcam, Camera in C# .NET Windows Forms Application using AForge.Video library
Website: foxlearn.com
The AForge.Video library contains interfaces and classes to access different video sources, such as IP video cameras (MJPEG streams). The library defines types used by other video related libraries from AForge.NET framework.
The AForge.Video.DirectShow library contains classes, which allow to access video sources using DirectShow interface (USB web cameras, capture devices, video files, etc.).
ZXing.Net is a port of ZXing, an open-source, multi-format 1D/2D barcode image processing library originally implemented in Java.
It has been ported by hand with a lot of optimizations and improvements.
It is compatible with .Net 2.0, .Net 3.5, .Net 4.0, .Net 4.5, .Net 4.6, .Net 4.7, .Net 4.8, Windows RT Class Library and Components, UWP, .Net Standard 1.0, 1.1, 1.3 and 2.0, Silverlight 4, Silverlight 5, Windows Phone 7.x and Windows Phone 8.x and Xamarin.Android.
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use webcam as qr code scanner in c#

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1 окт 2024

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Комментарии : 115

@Earthbound64 2 года назад

Does not recognize FilterInfoCollection, perhaps some using is missing? What do you use to import zxing nuget package into the code?

@yevhenvictorovich2288 4 года назад

It was really cool ! Thanks for your examples. Could you show one more example with car number detection ? I want to try create some app for the handicapped parking

@foxlearn 4 года назад

OK. Thank you for your suggestion. I'll upload soon !

@Larry821 2 года назад

This has to be the most interesting little app I've ever seen presented in just 8 minutes. This is highly technical material condensed into a useful and practical proof-of-concept. Well done.

@emmakade07 4 года назад

This is a great work weldone. Please i am encountering a problem, when i reached timer1 if (pictureBox1.Image != null) { } i tried to type "BarcodeReader" but the keyword is not coming up, it gives error so i can't proceed, Please how do i solve the error?

@ahmedosama7463 4 года назад

What is the error? null reference ?

@warrendewit7769 3 года назад

Add reference to Zxing?

@Justin-xy2ko 2 года назад

bit late but heres the solution: at the start of the code you have to add "using ZXing;" For some reason the uploader doesn't show this

@deveshvagal3238 4 года назад

Instead of QRCode I want to scan barcode using webcam what should I do ?

@foxlearn 4 года назад

OK. Thank you for your suggestion. I'll upload soon !

@lerocher2182 4 года назад

@@foxlearn or scan barcode with scanner. Thanks

@prof.josimarr 4 года назад

i have a error on closing form, but I use try catch ( in portugueses this is called : gambiarra) lol

@luissilvano154 4 года назад

Será que você pode me ajudar? não estou conseguindo rodar o código. Meu whats: 11979891306

@devamsol7879 Год назад

Dear sir thanks for this tutorial, but i have problem Argument 1: cannot convert from 'System.Drawing.Bitmap' to 'byte[]' , how to fix it. thankyou.

@akhterhussain100 4 года назад

Thanks for sharing,but how to generate QR code

@foxlearn 4 года назад

You can view this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-32u7kb9DYEk.html

@feyyazaki1740 4 года назад

woww it was so useful video for me.. thank you

@foxlearn 4 года назад

Thank you !

@kaimost9774 4 года назад

The camera does not display Where should it be fixed?

@davidcor6466 Год назад

@tutoletras2400 Год назад

Hoy would You Made this un WPF?

@ibo3460 4 года назад

Take a few seconds after video ends and make screen black to show your other videos plz, every time when I try to pause at the end I click your other videos inadvertently. Thank you for great videos by the way)

@foxlearn 4 года назад

OK. Thank you for your suggestion. I'll try to do better

@ibo3460 4 года назад

@@foxlearn Thank you 🦊 Learn ))

@manhbuivan7772 2 года назад

Excuse me, I cant find " Decode ".please tell me Why?

@EmirFaruk Год назад

thanks for the video nice and clear

@xiaocheng9057 3 года назад

hello Fox Learn... thank you for uploading this video. It save me from failing and repeating ^^ but the problem is when it captures it doesn't freeze the photo.... dunno why but over all... It save from death haha^^

@عمارمظهر-ك4ك 4 года назад

problem in the statment cboDevice, this type was not declared, and you have in another video the same code but using cboCamera also not work? can explain that please?

@victormwaba6688 3 года назад

Hello I tried this but my picture box is loading blank but the camera light is going on what should I do?

@nihatbeyi 10 месяцев назад

Excellent application

@user-rp9iis1en6h 4 года назад

Can aforge library decode OMR sheet? or process OMR sheet from picture or scanned file?

@ferdicuyar814 3 года назад

Does not working on me. I take the images from camera but i dont get any result to rich textbox when i put the qrcode. i find out that when i creating the "Result" variable my reader.decode is not working and result variable becomes null.

@ferdicuyar814 3 года назад

private void timer1_Tick(object sender, EventArgs e) { BarcodeReader okuyucu = new BarcodeReader(); if (pictureBox1.Image!=null) { Result sonuc = okuyucu.Decode((Bitmap)pictureBox1.Image); string decoder = sonuc.ToString().Trim(); if (decoder != "") { timer1.Stop(); txtSonuc.Text = decoder; } } } Result sonuc returns null and program crushes but picturebox1. image is not null. do u have any idea?

@1ryqw989 4 года назад

how you can download that in visual studio?????

@jorgeespinosa8480 9 месяцев назад

This is the most relaxing tutorial I have ever seen.

@quioan6978 2 года назад

Excuse me, why i have not BarcodeReader, Result ?

@manhtunghoang8370 2 года назад

using XZing;

@pradeepyadav2318 4 года назад

dear sir i have applied this code in my code and project is running but QR code not scanning..plz let me know what i doing mistake..

@foxlearn 4 года назад

I think you should zoom qr code, please try again

@programmer313 2 года назад

Exteintion show on index =0 when I try to run project they say out of indexing Some one help please?

@programmer313 2 года назад

If someone get same exception The reason is the camera driver isnt in laptop 🙂 I mean the problem is techniques in device driver not in code

@A.Developer Год назад

nice🤩

@hasan7106 2 года назад

thanks ♥

@solomod5787 4 года назад

Failed to install Zxing it says "'ZXing.Net' already has a dependency defined for 'NETStandard.Library'." so what will be the solution for it?

@deepudurairaj352 3 года назад

1.Open package manager console in Visual Studio 2.Type: [Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bOR [Net.SecurityProtocolType]::Tls12 Then try installing

@aramayisgyulbekyan5436 4 года назад

Very helpful , Thanks . Why is my camera have angle . in skype everything is ok

@foxlearn 4 года назад

Thank you !

@markusgrabner8690 Год назад

Great tutorial. Thank you! Saved me a lot of time.

@jameelurrehman8587 4 года назад

خوب

@foxlearn 4 года назад

Thank you !

@VivekKumar-xe9cv 3 года назад

[nuget.org] The V2 feed at 'www.nuget.org/Search()?$filter=IsLatestVersion&searchTerm='aforge'&targetFramework='net472'&includePrerelease=false&$skip=0&$top=26&semVerLevel=2.0.0' returned an unexpected status code '404 Not Found'... i am getting this error when I am trying to install package of "aforge"

@foxlearn 3 года назад

What visual studio version are you using?

@VivekKumar-xe9cv 3 года назад

@@foxlearnvs 2019

@VivekKumar-xe9cv 3 года назад

@@foxlearn version 16.8.0

@th3painter975 4 года назад

Hi thank for your video How can i add new frame event When i press tap give me error massage Event hookup could not create solution with event handler

@deveshvagal3238 4 года назад

If we create a QR code in a picture box & print the QRcode on the crystal reports & then scan it with the webcam will it scan ?

@foxlearn 4 года назад

Yes, No problem

@iamnut8339 4 года назад

Will there be a fingerprint scanner video soon?

@ahmedosama7463 4 года назад

Was very helpful , saved me a lot of time , Thanks, Yet there is a mistake in Timer code that will cause null reference errors randomly, you must stop the time once Tick event happens , then re-enable it back before exiting the Tick event.

@csaappspromo2546 4 года назад

Great Video. Thank you very much

@gulammustufaansari8605 3 года назад

Excellent bro❤❤❤❤❤

@mohnasser8229 4 года назад

Please can you make a video a bout how do I crack crack for my application or serial?

@foxlearn 4 года назад

OK. Thank you for your suggestion !

@madraven37 4 года назад

I'm just curious, I've seen some mobile apps, showing "grid guides" when scanning a qr code, can It be done here as well??

@ahmedosama7463 4 года назад

Yes , quite straight forward stackoverflow.com/questions/49256697/qr-code-scanning-inside-a-limit-area

@satishmajji481 4 года назад

Could you please make videos on Microsoft azure?

@foxlearn 4 года назад

OK. Thank you for your suggestion

@fmusicede7384 4 года назад

Thank you! so good!

@jerrymanguiat8074 3 года назад

It can be use for multi qr codes?

@foxlearn 3 года назад

I think it can

@sidriz1 3 года назад

How can i add BarCodeReader

@foxlearn 3 года назад

You can do the same way

@shubhamsahuSD 4 года назад

😘

@foxlearn 4 года назад

Thank you !

@苏军军-b3i 4 года назад

OHHHHHHH，Thanks for your tutorial.

@foxlearn 4 года назад

You're welcome. Thank you !

@kanyako6021 3 года назад

Thank you for this tutorial. I hope you make more tutorials like this. It helps me a lot.

@foxlearn 3 года назад

Thank you so much !

@buildcon_ 4 года назад

👌

@foxlearn 4 года назад

Thank you !

@kamranmmmdov55 4 года назад

Thanks a lot.Your lessons is so interesting. Please make video about Bot framework

@foxlearn 4 года назад

OK. Thank you for your suggestion. Let me try to research. What do you want to use botframework for?

@kamranmmmdov55 4 года назад

for my personal web site.i want to create Chatbot for support customers(ASP.NET)

@cansadodelserrucho 4 года назад

I really love your videos

@foxlearn 4 года назад

Thank you !

@yapandasoftware 4 года назад

Really cool!

@foxlearn 4 года назад

Thank you !

@umairanjum4123 4 года назад

nice'

@foxlearn 4 года назад

Thank you !

@dilawarali5390 4 года назад

Hello! thanks for making this great video but can you tell me how did you get the qrcode into your mobile did you capture the picture of qrcode or did you use any app for it?

@kashwells3726 3 года назад

I guess Im kinda randomly asking but does anyone know a good place to watch new series online ?

@axelderek4958 3 года назад

@Kash Wells Try Flixzone. You can find it by googling =)

@randyelliott2494 3 года назад

@Axel Derek Yea, have been watching on FlixZone for years myself =)

@kashwells3726 3 года назад

@Axel Derek Thanks, I went there and it seems like they got a lot of movies there =) I appreciate it!

@axelderek4958 3 года назад

@Kash Wells happy to help =)

@huseyinhilmicelebi1364 3 года назад

all same but dont see BarcodeReader class , help me please

@stefanrompen5330 3 года назад

Same

@foxlearn 3 года назад

Please install library from the nuget

@huseyinhilmicelebi1364 3 года назад

@@foxlearn problem solved, thank you , but again there is a problem , my camera dont start, "captureDevice" object dont start camera

@manhtunghoang8370 2 года назад

@@huseyinhilmicelebi1364 did you fix it ?

@mohammadmo4545 2 года назад

@@manhtunghoang8370 did you fix it?

@belaidamar1138 3 года назад

Hello, thank you for your videos can you help me write a code in c # to send emails from my application to mailboxes hosted in microsoft EXCHANG servers