RFID API

I have an API (pcProxAPI) that I need to incorporate into my Xojo application in order to read data from a RFID reader. I am having a difficult time incorporating the API into my application. I tried in Import External, but that doesn’t work.

What am I missing?

It looks like pcProxAPI.dll is a plain C library, which means that you use the Declare statement to import individual functions from the library.