QR Code Scanner Using Webcam in VB 2015

[@BasselTech]

Hi guys, I really recommend you check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial with automatic webcam but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish.

[@pierceabordo3755]

Do you have QR Code Scanner in Java?

[@hellokatanna502]

Hi sir, may ask do you have a video that can only automatically detect the qr code using webcam? If not, may i know the code on how to automatically detect sa qr code using webcam.

[@BasselTech]

Apologies for the late reply. I think this video tutorial could help: kzbin.info/www/bejne/sHXIdYqanLiGoc0 Feel free to reach out whenever you need help! 😊

[@francinealmontero9288]

is there any way instead clicking button for scanning change to non stop scanning while camera is open?

[@jessydsouza8069]

Hi, i used your code for a laptop webcam but not able to read the qrcode. The error that i get is {"Invalid number of Finder Pattern detected"}. I think it is the size of the image. can i control that in anyway

[@BasselTech]

I apologize for my late reply. I'm afraid I didn't face this problem before. If you're still stuck in it please contact me at: [e-mail] Thanks! Have a nice day! :-)

[@dlowndes42]

Great Tutorial!! I also get the "object reference not set of an instance" error just after selecting the source camera. I am using VS2017 and Windows 10. However, it works on my Windows 7 Machine with VS2013....any ideas?

[@BasselTech]

Thank you sir! Well, this is interesting, I will try to know the reason for this. Have a great day sir! :-)

[@dlowndes42]

Hi, thanks for replying! I've done some more testing and I think this is a hardware issue.

[@hydro670_1]

Thank you! code worked flawlessly for my project. Just wanted to know if its possible to make the camera automatically capture the QR code without having to press the detect button.

[@BasselTech]

Well, you can’t detect QR code for every captured frame BUT there is a compromise if you want the detection to be automatic; you can put a timer and put the code of the detect button inside its Timer_Tick function, and I think the challenge will be setting its interval (in milliseconds), you can do this by trial and error, start with 2000 ms = 2 seconds and increase it if you have any error. Thanks! I hope this helps! Have a great day! :-)

[@hydro670_1]

BasselTech awesome I'll try that out. Thank you so much!

[@BasselTech]

You’re welcome dude! If you have any other questions feel free to comment here or hit me by an email at: [e-mail]

[@eddraymundo3906]

Steven Paul Centino did it work?

[@hydro670_1]

Yes it did. just play around with the time, depending on how long you want the timer to be before capturing the image

[@chethanchoudhury3365]

I had used this code and its running but I'm not able to see anything in a picture box

[@BasselTech]

Hi Chethan, I would really recommend you check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish.

[@LoveWaPeace]

Can i save the displayed info in php, excel / notepad etc.

[@BasselTech]

May you please explain what do you mean by displayed info?

[@leonelpobre4731]

Sir may built in webcam in my laptop can't scan. What can I do?

[@kdjd509]

hi, when i scan a qr code, sometimes it shows a different text/result (i am using the qr code generator that u created) i tried scanning a version 1 (21 module) qr code and the chances of getting the expected text/result increased, does this problem has something to do with my webcam? looking for a solution other than buying a much expensive camera, im thinking that i should change the version that the generator creates but i dont know how, can you please help me?

[@BasselTech]

Please accept my apology for my late reply. Well, I believe that the cause of this problem is the quality of the webcam, if you’re considering buying a new one then this would probably solve your problem. If you have further questions please feel free to email me at: [e-mail] Have a great day sir! :-)

[@jessaabaigar8176]

Hi! I'm using vb. Net 2015 some codes above are not working like "inialize component()" and "disposing". Can you send me the source code please. Thanks in advance!

[@BasselTech]

Hi Jessa, I really recommend you check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial with automatic webcam but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish. If you still have any doubts, feel free to contact me. Have a nice day! :-) Email: [e-mail] Kik: kik.me/basseltech/

[@richp470]

Hello I just discovered this code and successful created an app using vb.net 2010. However, it does not seem to capture a qr code. I notice th DLL's are older...maybe i need an upgrade to the DLL's

[@Algorhythmo]

Can you do it to scan automatically i mean no button required?

[@ayushchauhan4205]

What will happen if I use barcode scanner instead of webcam?

[@BasselTech]

I apologize for my late reply. Unfortunately, it will not work with this library, as this is made for webcams. Thanks! For further questions, do not hesitate to contact me at: [e-mail] Have a nice day! :-)

[@Silver-nm2if]

@@BasselTech can u please make a video tutorial that uses a barcode scanner Instead?

[@hibatillawi5822]

Where can I find the dll of WebCam_Capture?

[@BasselTech]

Kindly follow the link in the video description. Thanks! Have a great day! :-)

[@tabularasa5075]

Would be very usefull if you would add a link to the "Webcam_Capture". Can't find it anyware. Thanks

[@BasselTech]

Hi, you’ll find a download link to the library if you followed the source code link in the description, or you can directly download it from here: jumpshare.com/v/BBlCy0Q8xL4F72f9s6br

[@ahamednishadh4136]

[an error occurred while capturing the video image] -- This error occurred. Please reply any suggestions.

[@BasselTech]

Hi Ahamed, I really recommend you check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial with automatic webcam but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish.

[@katrinapq]

been getting this message "A first chance exception of type 'System.IO.FileNotFoundException' occurred in WindowsApplication1.exe", also webcam does not work, either built-in webcam or microsoft lifecam, my system was running win10 64-bit and visual studio 2012

[@BasselTech]

+Marc Quito Try to delete both "Debug" and "Release" folders and rebuild your project.

[@katrinapq]

Thanks

[@tanho5853]

I'm using Visual Studio Comunity 2017 and the webcam sometime work, sometime don't work, it's keep displaying old capture picture, can you help?

[@BasselTech]

+Tân Hồ Try to press the start button twice, and please keep me updated :-)

[@tanho5853]

BasselTech Thank you so much, it work now.I'm new to visual studio, can you make video tutorial how to transform read information from QR code to microchip like FPGA,PIC, arduino, etc please?

[@BasselTech]

I will consider doing this tutorial in my future videos, Thanks! Have a great day sir! :-)

[@tanho5853]

How can I continously decoding QR codes (slowly moving Webcam pass a QR code and it can capture QR codes)

[@BasselTech]

Hi Tân Hồ, I really recommend you check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial with automatic webcam but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish.

[@workit6566]

Hi idol, can you make a video for QRcode Auto scanner @VisualBasic

[@eddraymundo3906]

This is very helpful Sir, but is it possible to make the code automatic so I don't need to press the detect button?

[@BasselTech]

Thank you sir! A compromise you can do is to put a timer and put the code of the detect button inside its Timer_Tick subroutine, and set its interval (in milliseconds), you can do this by trial and error. For further questions, don’t hesitate to email me at: [e-mail] Thanks! I hope this helps! Have a great day! :-)

[@eddraymundo3906]

BasselTech I've done what you've said and it worked thankfully, but there is a little problem when there's no QR code detected, it hangs for like 4 seconds, consuming considerable time on the interval I set for the timer. Overall, it's functional so thank you.

[@BasselTech]

Unfortunately using this library, you can not avoid this delay. Thank you! Have a great day sir! :-)

[@BasselTech]

Hi Edcel, I really recommend you check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial with automatic webcam but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish.

[@agribankcaugiaybranch1457]

I can't using code for read qr, pls teach me how to ?

[@dyhiamouhali1136]

I want to develope an application that scanes a QR code using a webcam with Java, can you please help me!

[@alexandernothnagel1935]

Hey , i use your script , but it don't working . i use your qr generator and try your reader . but i got no message @ the textbox can you help me ?

[@berniereal1624]

An error occured while capturing the video image. The video capture will be terminated object refference not set to instance of an object.

[@ronniecentino8038]

same on my problem...huhuhuh

[@billyjoe1094]

"object reference not set of an instance" whats the problem it terminated the video capture when i click start? pls answer

[@BasselTech]

Did you use the same code as in the tutorial?

[@Rizwanaslam07]

Same error in my pc. Please help us to solve this problem

[@Rizwanaslam07]

Same problem i facing. It says "object reference not set to an instance of an object".Help us to solve this problem.

[@BasselTech]

Does this error appear after you select a webcam? Or you’re unable to select a webcam at the first place?

[@stuffystuffs2684]

It is happening because of your webcam. Buy a new webcam

[@Puruntong1723]

how to get specific line of code from qr code copy to label or txtbox?

[@BasselTech]

You will need to copy it to a multi-line textbox or a richtextbox. Have a nice day! :-)

[@alisonscott1438]

Can I apply this to my project? Is there a big difference between vs2010 and vs2015? Nice video btw, thank you!

[@BasselTech]

Thank you sir, there is no difference at all, you can surely apply this to your VS2010 project. Have a great day! :-)

[@alisonscott1438]

BasselTech Thank you sir. I just want to ask, if there is an specific printer to print qr code?

[@BasselTech]

No sir, you can use any printer to print QR codes.

[@michatom]

an error occurred while capturing the video image

[@BasselTech]

Hi Michatom, I really recommend you check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial with automatic webcam but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish.

[@Aliapape]

Excellent .. I thank you from my heart Is there a way to take a picture automatically? Ali al-Iraqi

[@BasselTech]

Thank you sir for your comment! Well, you can’t detect QR code for every captured frame BUT there is a compromise if you want the detection to be automatic; you can put a timer and put the code of the detect button inside its Timer_Tick function, and I think the challenge will be setting its interval (in milliseconds), you can do this by trial and error, start with 2000 ms = 2 seconds and increase it if you have any error. Thanks! I hope this helps! Have a great day! :-)

[@BasselTech]

Hi Ali, I think you might be interested to check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial with automatic webcam QR code detection but using C# programming language. Of course you can follow the same procedure and do it with VB.NET if you wish. Have a nice day! :-)

[@syedhaseebahsan2916]

its showing an error exception that object reference is not set to an instance object can you help me with this

[@syedhaseebahsan2916]

well i am using my laptop webcam is there any condition for camera mp

[@BasselTech]

Hi Haseeb, I really recommend you check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial with automatic webcam but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish.

[@johnpaulgalang3657]

Is this working on Windows Tablet? Because i tried this and nothing happen.

[@BasselTech]

Hi John, thank you for your comment. I believe the version of the camera on your tablet might not be supported by this library. Did you find any other working WebCam libraries?

[@keshavkishore]

can you make same kind of solution for barcode decode and encode in vb, i try to find on other sites but they are not working so can you make it as soon as possible. Thanks...

[@BasselTech]

Please stay tuned for your requested tutorial in the next couple of hours! :-)

[@keshavkishore]

thanks for doing this.

[@BasselTech]

Kindly check our tutorial (Barcode Generator & Scanner in VB 2015): kzbin.info/www/bejne/iKbJdqB3hrqVqLM

[@kvsubbarao2510]

I am using usb cam for system windows 10 and vs 2017 its not working as you said after start pressed no action is took place and no image captured kindly rectify my error

[@BasselTech]

May be this is an issue with the camera or the camera driver, can you please try to use another one?

[@baalbasaur9551]

Hi! can you please make a tutorial on how to scan using a webcam and decode QR automatically ? I mean like when you point the QR on the webcam it will automatically decode or show the details of that QR without pressing a Decode button. Thank you very much in advance! :D and also im using visual basic 2010

[@BasselTech]

Dear sir, actually this is not possible with this library, as this one is a little bit slow so the detection will be very laggy. But I'll search for another faster alternative and will let you know if I found. :-) If it's necessary for you, at the moment, to make the detection automatic, you can put the detection code (button code) in a timer and set its interval to a relatively large time may be 1 second, but you'll still have a delay. Have a great day! :-)

[@baalbasaur9551]

Thank you very much :D

[@andersonmauro8596]

how could i get that webcam_capture.dll?

[@andersonmauro8596]

i relly like your video ..that help me a lot please kindly send to me the dll files .. with mu account [e-mail]..

[@BasselTech]

Hi Anderson, I really recommend you check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial with automatic webcam but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish. To download any DLL files or the project source code, you should follow the link the video's description.

[@oswaldlesterambat7478]

The code is readable in vb10 but does not show the webcam when i press the start button Please help!

[@BasselTech]

Hi Oswald, I really recommend you check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial with automatic webcam but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish. If you still have any doubts, feel free to contact me. Have a nice day! :-) Email: [e-mail] Kik: kik.me/basseltech/

[@kvsubbarao2510]

after pressing start i was not asked the camera detection dialog

[@aishtyr876]

sir it is also happening to me, did you figure it out what to do sir??

[@BasselTech]

Did you try to test it guys using another webcam?

[@kyrollosemad5319]

the link isn't working :')

[@BasselTech]

Hi Kyro, our website was down but now it's alive. Please try it again now! :-)

[@kyrollosemad5319]

BasselTech its worked!

[@kyrollosemad5319]

Is there a way to take a picture automatically?

[@BasselTech]

Well, you can’t detect QR code for every captured frame BUT there is a compromise if you want the detection to be automatic; you can put a timer and put the code of the detect button inside its Timer_Tick function, and I think the challenge will be setting its interval (in milliseconds), you can do this by trial and error, start with 2000 ms = 2 seconds and increase it if you have any error. Thanks! I hope this helps! Have a great day! :-)

[@kyrollosemad5319]

​ BasselTech can you send me the code?

[@MasterkenNgame]

where i can dowload the -- WEBCAM_CAPTURE.DLL

[@BasselTech]

Please follow the link in the description (basseltech.com/watch?v=_wjk2pw4aOg).

[@ijochannel7933]

thanks, it work

[@BasselTech]

You’re welcome! Stay tuned for more, and have a nice day! :-)

[@bimasandika8361]

Thaks You Genk .. Sangat Membantu

[@BasselTech]

Thanks!

[@brijeshtrivedi4874]

how to scan QR code using Webcam in C#

[@jessamaebegas2540]

cannot open source code..

[@BasselTech]

Did you download the project zipped file?

[@mema3419]

I encountered error sir. After I select the webcam on my laptop then when i press start their is an error say "object reference not set of an instance...."

[@BasselTech]

Can you try it with another webcam and give me a feedback? Feel free to emal me at: [e-mail] Thank you! Have a great day! :-)

[@ymtchannel3103]

@@BasselTech i encountered this too and i cant select my laptop webcam device and it says "an error occurred while capturing the video image. the video capture will now be terminated" how do i fix this sir?

[@BasselTech]

Hi guys, this is an issue that sometimes happens with that library. However, I really recommend you check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial with automatic webcam but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish.

[@ЯнЯнкер-н6д]

くさんありますありがとうございます」、

[@BasselTech]

You're welcome! :-)

[@markjunniesnarido2831]

can't play the video (an error occurred while capturing the video image.....)

[@syahirahyaacob3429]

do you know how to connect qr code webcam scanner to mysql database to perform validation? please help me

[@BasselTech]

What type of validation do you mean? Can you explain more please?

[@syahirahyaacob3429]

@@BasselTech my final year project is to give access to someone that has authorised qr code in the database when it is scanned. but i really have no idea how to connect the webcam scanner to make it scan valid qr code and match it with data in the database. i am stucked. do you have any suggestion?

[@BasselTech]

@@syahirahyaacob3429 Alright, I can make a tutorial on this. Please check out my latest tutorial (WebCam QR Code Scanner In C#): kzbin.info/www/bejne/omiuZWOfftGkodk It is a better version of this tutorial but using C# programming language. You can follow the same procedure and do it with VB.NET if you wish; however, the tutorial I'll make will be an extension to the C# version. May you please tell me what type of database do you want? or it doesn't really matter?

[@syahirahyaacob3429]

@@BasselTech i am familiar with mysql database using xampp or wamp. But i'm okay if you want to use any database. thank you so much for your help, Sir.

[@Santiago-gx2we]

can i have the scan qr and the qr data will be view in the datagridview?

[@BasselTech]

Yes of course you can! :-)