How to create a QR Code Version 14 (73x73modules)

Matthias Rebbe matthias_livecode_150811 at m-r-d.de
Wed Jul 18 08:07:11 EDT 2018


I´ve filed an enhancement request now <https://quality.livecode.com/show_bug.cgi?id=21428> and attached the patched library file and an updated api.lcdoc  with 2 additional examples to the request.


Matthias




> Am 18.07.2018 um 02:13 schrieb Matthias Rebbe via use-livecode <use-livecode at lists.runrev.com>:
> 
> Monte,
> 
> you are my hero. :)
> 
> I´ve changed line 1486 to 
> command qrCreate pImg, pData, pECC, pSize, pMask, pMinVersion, pMaxVersion
> 
> and changed the line 1525  from 
> repeat with tVersion = 1 to 40
> to
> if pMinVersion is empty then put 1 into pMinVersion
> if pMaxVersion is empty then put 40 into pMaxVersion
> repeat with tVersion = pMinVersion to pMaxVersion
> 
> It´s working! ! ! 
> 
> I will open an enhancement report tomorrow afternoon and will add my patch after i´ve added some additional code for error handling in case pMinVersion is greater than pMaxVersion or if pMaxVersion >40 and so on.
> 
> Thank you very much. 
> 
> Matthias
> 
> 
>> Am 18.07.2018 um 01:29 schrieb Monte Goulding via use-livecode <use-livecode at lists.runrev.com>:
>> 
>> Hi Matthias
>> 
>> This looks like a relatively easy patch to make. Probably adding min version and max version optional parameters which default to 1 and 40 then using those in the loop to find the min version at line 1525 of the script. Then you just use 14,14 for the parameters.
>> 
>> It would be great if you would open an enhancement report and if so inclined contribute the patch in case others hit the same requirement.
>> 
>> Cheers
>> 
>> Monte
>> 
>>> On 18 Jul 2018, at 8:20 am, Matthias Rebbe via use-livecode <use-livecode at lists.runrev.com> wrote:
>>> 
>>> Hi.
>>> 
>>> My app needs to create qr codes. This is not a problem so far, as Splash21´s  qrCode library is now included in Livecode.
>>> 
>>> My problem is that i need to create qr Codes with exact version 14, which has a matrix size of 73 x 73. The customer needs exact that kind of code. The codes are scanned by a parcel service and the tech papers of the parcel service note exact those requirements.
>>> 
>>> As the  qrCode library in LC automatically decides according to the number and types of the characters, what version is used for creation, i am not sure if this is even possible. But is there a way to create just version 14 codes regardless of the number of character? Maybe with a modified library?
>>> 
>>> Regards,
>>> 
>>> Matthias
>>> 
>>> 
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>> 
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