main.cpp

#include <iostream>
#include <SDL2/SDL.h>

using namespace std;

SDL_Joystick *gamepad;
SDL_Event event;
int joy, indexJoysticks;


int checkJoyStick(){
    int i;
    if (indexJoysticks == 1) {
        return 0;
    } else {
        for(i = 0; i < indexJoysticks; i++)
        {
            printf("Select your gamepad");
            printf("Name: %s\n", SDL_JoystickNameForIndex(i));
        }
    cin>>i;
    return i-1;
    }
}

void detectPressed(){
    bool isRunning = true;
    while (isRunning) {
        while(SDL_PollEvent(&event) != 0){
            if(event.type==SDL_QUIT){
                isRunning = false;
            } else if(event.type == SDL_JOYBUTTONDOWN){
                if(event.jbutton.button == 0){
                    printf("Button Pressed\n");
                } else if(event.jbutton.button == 7){
                    printf("Start Button Pressed, Program exit\n");
                    isRunning = false;
                }
            }
        }    
    }
}

int main()
{
    if (SDL_Init(SDL_INIT_JOYSTICK) != 0) {
        SDL_Log("Unable to initialize SDL: %s", SDL_GetError());
        SDL_Quit();
        return 1;
    } else {
        SDL_Log("Program Started");
    }
    if (SDL_NumJoysticks() > 0) {
        printf("%d joysticks found\n", indexJoysticks = SDL_NumJoysticks());
        if ((gamepad = SDL_JoystickOpen(joy = checkJoyStick()))){
            SDL_JoystickEventState(SDL_ENABLE);
            SDL_Log("Connected");
            SDL_Log("%s\n", SDL_JoystickName(gamepad));
            SDL_Log("Number of Axes: %d\n", SDL_JoystickNumAxes(gamepad));
            SDL_Log("Number of Buttons: %d\n", SDL_JoystickNumButtons(gamepad));
            detectPressed();
        } else {
            SDL_Log("Couldn't find Joystick\n");
            SDL_Quit();
            return 1;
        }
    } else {
        SDL_Log("Couldn't find any Joystick\n");
        SDL_Quit();
        return 1;
    }

    SDL_Quit();
    return 0;
}