to add it, I do not need to print QR codes, I need to generate a picture (bitmap) that the program will send electronically to the customers who will make payments based on this code.
Where would I find what QR code should contain for the payment, especially in what structure. I found more libraries for creating QRs, but I'd like to save time by testing and letting you know which one to use.
as I wrote: my printing library generates them, and therefore I have never researched other sources.
Anyway: the ZXing library seems to be one of the most used in .NET: github.com/micjahn/ZXing.Net
obviously noone bothers to read my link ;(.
"EPC QR code From Wikipedia,
The European Payments Council Quick Response Code guidelines define the content of a QR code that can be used to initiate SEPA credit transfer (SCT). It contains all the necessary information in clear text. These QR code guidelines are used on many invoices and payment requests in the countries that support it (Austria, Belgium, Finland, Germany, The Netherlands) enabling tens of millions to pay without requiring manual input leading to lower error rates."
Followed by a description and samples...
Wolfgang is right, probably in individual countries. I found the SEPA payment in Czech but the QR code with Czech pay "string" not work. . When I made a QR code on web page, work OK. I gave it a decode (with gxing) pay "string" has this content:
pay "String" from QR after decode:
original pay data :
IBAN: SK6381805002408134378929 VS: 1100022019 KS:1144 Amout: 1985,74 EUR Due Date: 25/3/2019