SDL_JoystickGetButton (3) - Linux Manuals
SDL_JoystickGetButton: Get the current state of a given button on a given joystick
NAME
SDL_JoystickGetButton - Get the current state of a given button on a given joystickSYNOPSIS
#include "SDL.h"
Uint8 SDL_JoystickGetButton(SDL_Joystick *joystick, int button);
DESCRIPTION
SDL_JoystickGetButton returns the current state of the given button on the given joystick.
RETURN VALUE
1 if the button is pressed. Otherwise, 0.
SEE ALSO
SDL_JoystickNumButtons