Print QR Code using Simphony Extensibility C#

[Milos MNE]

Hi,

I would like to print QR code on Simphony check. String for QR code is dynamic, not fixed.
I was thiking about using CustomTrailer field in OpsCustomReceiptEvent for that but I couldn't manage to do it.
Does anyone have an idea what should I do?

Thanks!

 

[goodbody]

i can do it.

You can put QR code printing commad data into CustomTrailer Data

 

[Niko S]

Hi goodbody

Can you share how to print QR ?

 

[Milos MNE]

Thank you goodbody.

Can you please share a code?
I've tried with sending the QR in string format that works in PrintLine command in ESC/POS but it didn't work.

 

[goodbody]

I'll get the code sorted out, but I've been busy lately and it's going to take some time.

 

[Milos MNE]

Thank you so much! Whenever you find time.

Are you also going to try with a string or something else? Maybe I can figure something out in the meantime.

Btw, the method I've been using is:

private string PrintQR(string link)
    {
        Encoding m_encoding = Encoding.GetEncoding("iso-8859-1");
        string buffer = "";
        int store_len = (link).Length + 3;
        byte store_pL = (byte)(store_len % 256);
        byte store_pH = (byte)(store_len / 256);
        buffer += m_encoding.GetString(new byte[] { 29, 40, 107, 4, 0, 49, 65, 50, 0 });
        buffer += m_encoding.GetString(new byte[] { 29, 40, 107, 3, 0, 49, 67, 8 });
        buffer += m_encoding.GetString(new byte[] { 29, 40, 107, 3, 0, 49, 69, 48 });
        buffer += m_encoding.GetString(new byte[] { 29, 40, 107, store_pL, store_pH, 49, 80, 48 });
        buffer += link;
        buffer += m_encoding.GetString(new byte[] { 29, 40, 107, 3, 0, 49, 81, 48 });
        return buffer;
    }

 

[goodbody]

I can give you some ideas first:
1.You print the QR code must be able to print out in the printer
2.OpsCustomReceiptEvent can print the QR code in the designated place of the receipt, for example, I want to print the QR code at the bottom of the bill

 private EventProcessingInstruction QRCodeApplication_OpsCustomReceiptEvent(object sender, OpsCustomReceiptEventArgs args)
        {
            byte[] youESCCommand = new byte[] { };
            args.TrailerAction = CustomPrintType.Append;
            var code = Encoding.UTF8.GetString(youESCCommand);
            args.CustomTrailer = (object)new ArrayList(1) { (object)code };
            return EventProcessingInstruction.Continue;
        }

The code to print the qrcode is a bit messy, I'll sort it out when I have time, I think you can google for the answer you're looking for, the more important thing is to give you an idea.

 

[goodbody]

There is also a problem, printing QR code in Simphony must use the Ops driver, and I don't know why.

 

[Milos MNE]

Hi goodbody, do I have to enable qr printing on simphony or something like that?
The printer I'm using is EPSON and it prints QR codes but when I try to send a command through extensibility it prints everything up until that command and it stops, it doesn't even cut the paper.

Regards,
Miloš

 

[goodbody]

The emc does not configure qrcode. The printer has a paper cutting command.

Simphony Developer,Welcome to contact me

https://github.com/simphonydeveloper/DevelopmentMessageBoard

 

[Chicken730]

Has Anyone been able to get this to work in Simphony 2? for me the printer stops printing any time an ESC code is sent to it.
Prints a string no issues.

thanks