Hello everyone.

Is anyone familiar with printing QR codes from A-Shell programs?

Thank you very much in advance and greetings to all.

Hi René

I'm printing QR-Codes in invoices using Zint, it creates an image file which I embbed in the output file.
If you think this is a good solution, I can provide you the routine I wrote to handle it.

Have fun

Zint certainly looks interesting, although it will probably take some work to interface to it on the LInux side. (Their Linux notes mention only Debian/Ubuntu and Fedora.) On the Windows side you can probably use the EXE out of the box, or create a DYNLIB wrapper for the DLL. So even in the LInux environment, it might be better to implement it as a client-side (ATE) xcall extension.

I'm in Windows and using the EXE directly but looks interesting the challenge to introduce myself to DYNLIB.
Using EXE is done and working, would it be any advantage to invest in the DLL usage?

I take a quick look to the DYNLIB and ZINT documentation and it looks pretty extense.
By now, I'm only interested in the QR-Code but Zint covers much more.

I'm not sure there would be much advantage in the DLL approach, other than eliminating the need to launch a separate process for each code generated. As you say, the downside is that you have to create wrappers for all of the functions you want to call in the DLL, and from the looks of it, there are a lot! (Not that you necessarily need more than a few of them, but it may take awhile just to figure out which ones are needed, since that's all buried inside the EXE.)

we use zint extensively to create QR codes and 2D barcodes on our CENTOS linux system,

What interface mechanism are you using? Did you use the API to create an executable and shell out to execute it? I didn't think there was a ready-made Linux CLI.