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I'm working in a C# Windows Forms POS System, and I want a way to integrate the system with the payment terminal so once i want to save the sale invoice the total amount of it will be sent to the payment terminal instead of letting the salesman do it manually. is there an SDK or a dll file to do this?
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
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Most popular payment systems have their own sdk which allows integration with your applications. You will need to talk to the vendor of the POS system with which you wish to integrate.
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