Essential Methods

Create is a static method that creates an instance and returns an ISwpTrmIf_1 interface

The Start method initializes the created instance and starts a listener if desired and if not already started.

This is the first method call that actually communicates with the terminal. It sends a LoginRequest which is needed before any other request.

The Payment method is called to make a purchase transaction when the amount is known.

The Refund method sends a PaymentRequest for refund and should be called when the amount is known.

This method will send an AbortRequest for the last issued request to the terminal.

GetLastTransactionResult / GetLastTransactionResultAsync is useful if the original payment or refund response is lost

This method sends a LogoutRequest to terminate the login session and allow for maintenance.