QR code reading with cam

[makgab]

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):

{
    for i := i to ParamCount do
    begin
      scan_image(PansiChar(ParamStr(i)));
    end;
}

[makgab]

you need to add mode delphi directive in your source code because it come from delphi

It works without delphi mode.

[DimensionSlider]

 DLL96V1, DLLSP96
come from ImageLib Corportate Suite
So you don't need to comment them out if you just download the lib.

[LacaK]

For QR Code recognition (from given input image) I translated from C to Pascal:

• quirc
• ZBar (partialy)

Sources with demo: https://lacak.sourceforge.io/freepascal.html

[af0815]

Alfred (from fpcupdeluxe) have a running ZXing.delphi.

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

works with a V4L Camera to detect Codes

[neodarkman]

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.

[LacaK]

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.

Please try updated version: https://lacak.sourceforge.io/freepascal.html#libquirc