Hi guys,

Is there any example with QR Code(*) in Lazarus?

Thanks. ^^

(*) http://en.wikipedia.org/wiki/QR_Code

Is there any example with QR Code(*) in Lazarus?

The device should come with according software.

DoDi

2011/2/17 silvioprog :

Is there any example with QR Code(*) in Lazarus?

Generating or reading?

2011/2/18 Felipe Monteiro de Carvalho

Generating.

(Hm..., it's possible generate QR Code with this project?: http://sourceforge.net/projects/tpsystools/)

Thanks.

silvioprog wrote

Hi guys, Is there any example with QR Code(*) in Lazarus?

Do you mean software that can print QR labels that are readable by QR readers?
The reading is done by the QR reader devices, which output the data in plain format.

Bo Berglund wrote

The reading is done by the QR reader devices, which output the data in plain format.

It doesn't have to be a "reader device", the QR code can be read from any raster image, if you have an appropriate library to read it.

2011/2/18 Bo Berglund

Please, see this project (decoder for M$-Delphi):

www.partitek.com/PtBarcodeDec.rar

My test:

http://imagebin.org/138592

But, I need a QR Code generator.

Generator (for JS and Ruby):

http://la.ma.la/misc/qrcode/

I not found for Lazarus (or Delphi). :/

silvioprog wrote

Generator (for JS and Ruby): http://la.ma.la/misc/qrcode/ I not found for Lazarus (or Delphi). :/

There is also http://code.google.com/p/zxing/
for Java/C#/C++, but not for Delphi or Lazarus.

Maybe it can be used as a starting point for conversion.

2011/2/18 Vladimir Zhirov

Thanks Vladimir. ;)

Please, see: http://code.google.com/p/zxing/issues/detail?id=724

http://sourceforge.net/search/?q=qrcode&sort=num_downloads_week&sortdir=desc&limit=25

--- On Fri, 2/18/11, silvioprog wrote:

From: silvioprog
Subject: Re: [Lazarus] QR Code
To: "Lazarus mailing list"
Received: Friday, February 18, 2011, 12:50 PM

2011/2/18 Vladimir Zhirov

There is also http://code.google.com/p/zxing/

for Java/C#/C++, but not for Delphi or Lazarus.

Maybe it can be used as a starting point for conversion. Thanks Vladimir. ;)
Please, see:?http://code.google.com/p/zxing/issues/detail?id=724

Hi guys,

CGI Test:

http://174.122.19.91/~silviopr/cgi-bin/qrcode/perl/qr_img.cgi?d=FreePascal-Lazarus&e=H

Source (CGI/PHP):

http://174.122.19.91/~silviopr/cgi-bin/qrcode.zip

Reader for several mobiles (use your mobile cam, I tested with Sony-Ericson W200a with sucess! ^^):

http://174.122.19.91/~silviopr/cgi-bin/KaywaReader.jar

I will try convert (the generator) from PHP to Object Pascal. When I finish I will implement in LazSolutions <http://code.google.com/p/lazsolutions>.

Thanks to all. ^^

Any success in conversion of the QR *generator*?
I have been trawling the web for OP/Delphi/FPC gereation code unsuccessfully...

2011/5/13 Bo Berglund :

Any success in conversion of the QR *generator*? I have been trawling the web for OP/Delphi/FPC gereation code unsuccessfully...

I gave up on converting, the QRCode code is very complex, and I'm without time to make the conversion from PHP to Pascal.

I'm using the QRCode in PHP version.

Thx.

-- Bo Berglund Developer in Sweden

silvioprog kirjoitti perjantai, 13. toukokuuta 2011 13:52:58:

I gave up on converting, the QRCode code is very complex, and I'm without time to make the conversion from PHP to Pascal. I'm using the QRCode in PHP version.

How about converting from Java? There was a Java version , right? Java is easier to port than PHP, unless some exotic library is used.

Juha

2011/5/13 Juha (gmail) :

How about converting from Java? There was a Java version , right? Java is easier to port than PHP, unless some exotic library is used. Juha

An interesting project in JavaScript.

http://en.sourceforge.jp/projects/jpqr/devel/

Yes,
but it is a decoder rather than a coder...

Hello,

I made simple Unit to use command line tool to generate Bar-codes including Qr-code, it is better than nothing. Original code is made with C/C++ I think.

Would be good to have both directions tough, and native code, if possible.

Here is the cOpenSource commandline tool I've used : http://sourceforge.net/projects/zint/

I can donate my unit if someone is needing it and even better helping to maintain it :)

-TP-

I posted on the Codegear Delphi forum as well and got this link in a reply:
http://www.java4less.com/barcodedelphi/barcodesdelphi.php?info=features

It is a commercial component package with limited licensing, but better than nothing...

Thanks for this pointer!
THe zint project contains an exe file that can be used via the command line to generate barcodes including QR. I have downloaded the exe and manual and tested a bit and it seems to work OK.

The sources are also available (C++) but they operate with the Qt graphics library so I guess there is a bit of a hurdle converting to native FPC...

Bo Berglund kirjoitti maanantai, 16. toukokuuta 2011 12:48:10:

The sources are also available (C++) but they operate with the Qt graphics library so I guess there is a bit of a hurdle converting to native FPC...

No, the backend code seems to be pure C.
You can convert the headers and use it with FPC, or you could even convert the C-code to Pascal. The code looks clear considering it is C.

Juha

Hello Lazarus-List,

Monday, May 16, 2011, 12:22:54 PM, you wrote:

Jg> Bo Berglund kirjoitti maanantai, 16. toukokuuta 2011 12:48:10:

> The sources are also available (C++) but they operate with the Qt > graphics library so I guess there is a bit of a hurdle converting to > native FPC...

Jg> No, the backend code seems to be pure C.
Jg> You can convert the headers and use it with FPC, or you could even convert the Jg> C-code to Pascal. The code looks clear considering it is C.

I'm trying to do it in order to test a c to pascal helper I'm working on (it is not a conversor but a helper).

If somebody starts to port to pascal I'll stop as this code is quite larger and for sure my tests will be better with a smaller piece of code.

http://code.google.com/p/zxing/

That is java One, maybe too complicated, can procuce and read barcodes...

-TP-