Is there any simple console application example for continuous reading?

The GetCardIdEx function can be used to read the card’s UID continuously.
Please check the API document on page 52 for more details on this feature.
We recommend pulling this function every 200-300ms.
An example of a function implementation is available in the C # .NET SDK at https://code.d-logic.com/nfc-rfid-reader-sdk/ufr-mf-examples-c_sharp