sdl_joystickopened(3) - Linux man page
Name
SDL_JoystickOpened - Determine if a joystick has been openedSynopsis
#include "SDL.h"
int SDL_JoystickOpened(int index);
Description
Determines whether a joystick has already been opened within the application. index refers to the N'th joystick on the system.
Return Value
Returns 1 if the joystick has been opened, or 0 if it has not.
See Also
SDL_JoystickOpen, SDL_JoystickClose