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Author Topic: QR code reading with cam  (Read 26254 times)

makgab

  • Jr. Member
  • **
  • Posts: 55
Re: QR code reading with cam
« Reply #15 on: March 10, 2016, 11:41:01 am »
I have still same error: acces violation...  >:(


It works! :)  It need Lazarus 1.6!!
(It doesn't work with Lazarus 1.4.4!)

The bug (scan twice):
Quote
{
    for i := i to ParamCount do
    begin
      scan_image(PansiChar(ParamStr(i)));
    end;
}
« Last Edit: March 10, 2016, 12:19:23 pm by makgab »

makgab

  • Jr. Member
  • **
  • Posts: 55
Re: QR code reading with cam
« Reply #16 on: March 11, 2016, 07:45:38 pm »
you need to add mode delphi directive in your source code because it come from delphi

It works without delphi mode. :)

DimensionSlider

  • Newbie
  • Posts: 1
Re: QR code reading with cam
« Reply #17 on: April 25, 2016, 07:32:18 am »
 DLL96V1, DLLSP96
come from ImageLib Corportate Suite
So you don't need to comment them out if you just download the lib.

LacaK

  • Hero Member
  • *****
  • Posts: 691
Re: QR code reading with cam
« Reply #18 on: June 08, 2020, 02:52:53 pm »
For QR Code recognition (from given input image) I translated from C to Pascal:
  • quirc
  • ZBar (partialy)
Sources with demo: http://lacak.users.sourceforge.net/

af0815

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  • Posts: 1378
Re: QR code reading with cam
« Reply #19 on: June 08, 2020, 03:54:21 pm »
Alfred (from fpcupdeluxe) have a running ZXing.delphi.

https://github.com/LongDirtyAnimAlf/ZXing.Delphi

works with a V4L Camera to detect Codes
regards
Andreas

neodarkman

  • New Member
  • *
  • Posts: 38
Re: QR code reading with cam
« Reply #20 on: November 03, 2024, 02:19:28 pm »
The Quircs does not works on:

 Lazarus v3.6 and FPC 3.2.2 , linux kubuntu 24.04+

I tried to compile the example, but nothing happens afterwards. It opens, loads the figure but when clicking the Decode button nothing happens.


 

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