#include <SDL/SDL.h>

Uint32 timeout_callback(Uint32 interval, void *param)

{

    SDL_Event event;

    event.type = SDL_USEREVENT;

    event.user.code = 1;

    SDL_PushEvent(&event);

    return 0;

}

bool handle_events(Uint32 timeout)

{

    SDL_Event event;

    SDL_TimerID timer_id = NULL;

    bool done = false;

    if (timeout)

    {

        timer_id = SDL_AddTimer(timeout, timeout_callback, NULL);

    }

    // wait for events and handle them

    if (SDL_WaitEvent(&event))

    {

        do

        {

            switch (event.type)

            {

            case SDL_USEREVENT:

                // timeout

                if (event.user.code == 1)

                {

                    SDL_RemoveTimer(timer_id);

                    printf("timeout\n");

                }

                break; // continue loop

            case SDL_QUIT:

                printf("quit\n");

                done = true;

                break;

            case SDL_KEYUP:

                printf("keyup\n");

                if (event.key.keysym.sym == SDLK_ESCAPE)

                {

                    done = true;

                }

                break;

            case SDL_MOUSEBUTTONDOWN:

                printf("mouse button down\n");

                break;

            case SDL_MOUSEBUTTONUP:

                printf("mouse button up\n");

                break;

            }

        }

        while (SDL_PollEvent(&event));

    }

    // remove timer when other event came before timeout

    if (timeout)

    {

        SDL_RemoveTimer(timer_id);

    }

    return done;

}

int main(int argc, char **argv)

{

    SDL_Surface* screen = NULL;

    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) == -1)

    {

        fprintf(stderr, "SDL_Init: %s\n", SDL_GetError());

        exit(1);

    }

    atexit(SDL_Quit);

    screen = SDL_SetVideoMode(800, 480, 16, SDL_SWSURFACE);

    if (screen == NULL)

    {

        fprintf(stderr, "SDL_SetVideoMode: %s\n", SDL_GetError());

        exit(1);

    }

    bool done = false;

    while (!done)

    {

        done = handle_events(1000);

    }

    return (0);

}