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I’ve been presented with a task where I’m unfamiliar with concepts.
Task – read printer data stream from a POS system.
Terms mentioned
ESC/P
I have to read values coming from a POS system. My first question is how can you determine the start and end of a print job?
I guess I’m looking for control characters of a printer maybe?
Also, is there a way to simulate this without interrupting the POS?
Anyone know good examples or references they are familiar with themselves?
Learn about Printdocument class
It has BeginPrint, and EndPrint event. You can subscribe to them with an eventhandler.
I’m not familiar with POS system, but i hope it’s helpful for your first question.