What technologies should be used to develop Kiosk system ?

Question

The functionality of the Kiosk is : 

• Read magnetic card
• Scan passport , barcode, QR
• Bill acceptor
• Print Tickets

I've already implemented these functionalities in WinForm app (C#), and that's just for getting the data , now I need to call external services which provide the banking logic (e.g. transactions ) with the data I've got as parameters. In order to do this , and to make the app decent-good-looking for the user , I think I should use a web application .. so there's my confusion with the stack I'm using ..  I hope you can suggest something , I'll appreciate it !