I am trying to edit the Keyboard.cpp key codes to support my Italian keyboard but I don't know which kind of codes I need to put as hex value.
For example, the hex value of key code for char "a" in US layout which is already written into the library is 0x04.
http://www.usb.org/developers/hidpage/Hut1_12v2.pdf
Universal Serial Bus HID Usage Tables
Section 10 Keyboard/Keypad Page