来源：

http://adolfans.github.io/sdltutorialcn/ （中文教程）

http://www.willusher.io/pages/sdl2/ （英文教程）

环境：SDL2 + VC++2015

下面的代码将打开一个窗口显示hello.bmp

1 #include 
     
       2 #include 
      
        3  4 int main(int argc, char** argv) 5 { 6     //初始化SDL 7     if (SDL_Init(SDL_INIT_VIDEO) != 0) 8     { 9         std::cout << "SDL_Init Error: " << SDL_GetError() << std::endl;10         return 1;11     }12 13     //创建窗口14     SDL_Window *win = nullptr;15     win = SDL_CreateWindow("Hello World!",16         SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,17         640, 480, SDL_WINDOW_SHOWN);18     if (win == nullptr)19     {20         std::cout << SDL_GetError() << std::endl;21         return 1;22     }23 24     //创建渲染器25     SDL_Renderer *ren = nullptr;26     ren = SDL_CreateRenderer(win, -1,27         SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);28     if (ren == nullptr)29     {30         std::cout << SDL_GetError() << std::endl;31         return 1;32     }33 34     //创建表面35     SDL_Surface *bmp = nullptr;36     bmp = SDL_LoadBMP("hello.bmp");37     if (bmp == nullptr) {38         std::cout << SDL_GetError() << std::endl;39         return 1;40     }41 42     //创建材质43     SDL_Texture *tex = nullptr;44     tex = SDL_CreateTextureFromSurface(ren, bmp);45     SDL_FreeSurface(bmp);46 47     //清空渲染器48     SDL_RenderClear(ren);49     //将材质复制到渲染器50     SDL_RenderCopy(ren, tex, NULL, NULL);51     //呈现渲染器52     SDL_RenderPresent(ren);53     //窗口延时54     SDL_Delay(2000);55 56     //释放资源57     SDL_DestroyTexture(tex);58     SDL_DestroyRenderer(ren);59     SDL_DestroyWindow(win);60     //退出SDL61     SDL_Quit();62 63     return 0;64 }