SDL_JoystickOpen (3) Linux Manual Page
SDL_JoystickOpen – Opens a joystick for use.
Synopsis
#include "SDL.h" SDL_Joystick *SDL_JoystickOpen(int index);
Description
Opens a joystick for use within SDL. The index refers to the N’th joystick in the system. A joystick must be opened before it game be used.Return Value
Returns a SDL_Joystick structure on success. NULL on failure.Examples
SDL_Joystick *joy;
// Check for joystick
if(SDL_NumJoysticks()>0){
// Open joystick
joy=SDL_JoystickOpen(0);if(joy)
{
printf("Opened Joystick 0
");
printf("Name: %s
", SDL_JoystickName(0));
printf("Number of Axes: %d
", SDL_JoystickNumAxes(joy));
printf("Number of Buttons: %d
", SDL_JoystickNumButtons(joy));
printf("Number of Balls: %d
", SDL_JoystickNumBalls(joy));
}
else
printf("Couldn’t open Joystick 0
");// Close if opened
if(SDL_JoystickOpened(0))
SDL_JoystickClose(joy);
}