A new pigpio wrapper has been created for use with Xojo 2019 r3.1 (API 2), Buster (Raspberry Pi OS), and uses pigpio (wiringPi is deprecated). This wrapper is free and is located at the GitHub location: Eugene Dakin pigpio-GPIO.
This is an aid for those who are developing electronics for the Raspberry Pi an their associated electronics.
Special mention for previous data was with the original work for the first Raspberry Pi wiringPi code to Xojo library was with Paul Lefebvre (https://github.com/paullefebvre). Another library was created by Ulrich Bogun (https://gitlab.com/UBogun/Xojo-pigpio) and has been instrumental with the creation of this library.
Teaser: A new Raspberry Pi book has been created and will be released in the next week or two. The book has many examples that exclusively uses the new pigpio wrapper.