Using callbacks on gamepad

[maxpower]

Hey guys I'm trying to get a function to be called each time the gamepad is released.

I think I need to use the function addCallbacks() and the property onUpCallback from the Gamepad class.

 

I have Gamepad called pad1 and a function test() that should be called every time any gamepad button is released, but not really sure how callbacks work/correct syntax.

 

Thanks for your help.