程式語言 - Simple DirectMedia Layer (SDL) - v2.0 - C/C++ - Add Timer

參考資訊：
https://wiki.libsdl.org/FrontPage

main.c

#include <stdio.h>
#include <stdlib.h>
#include <SDL.h>
#include <SDL_timer.h>
 
Uint32 mytimer(Uint32 interval, void *param)
{
    printf("%s: 0x%x\n", __func__, param);
    return 0;
}
 
int main(int argc, char **argv)
{
    const int w = 320;
    const int h = 240;
    const int bpp = 16;
    SDL_Window *window = NULL;
    SDL_Renderer *renderer = NULL;

    SDL_Init(SDL_INIT_VIDEO);
    window = SDL_CreateWindow("main", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, w, h, SDL_WINDOW_SHOWN);
    renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
    SDL_RenderClear(renderer);
    SDL_RenderPresent(renderer);

    SDL_TimerID myid = SDL_AddTimer(1000, mytimer, (void*)0xdeadbeef);
    SDL_Delay(3000);
    SDL_RemoveTimer(myid);

    SDL_DestroyRenderer(renderer);
    SDL_DestroyWindow(window);
    SDL_Quit();
    return 0;
}

編譯、執行

$ gcc main.c -o main -lSDL2 -I/usr/include/SDL2
$ ./main
    mytimer: 0xdeadbeef