I have a pico-whu4 device (link below)

It is stated in the document of this device that it has 4 GPIO pins with input and output capabilities

But I couldn’t find any way to interact with it by code (C++ in my case).

Neither a way was found in the search nor an additional explanation about the use of these ports on the manufacturer’s website

device link and documents : https://www.aaeon.com/en/p/pico-itx-boards-pico-whu4

Searching And Reading Dcouments