#include <iostream>

 #include <SDL2/SDL.h>

 #define WIDTH 640

 #define HEIGHT 480

 #define BPP 4

 #define DEPTH 32

 using namespace std;

 #undef main

 int main(int argc, char* argv[])

 {

     SDL_Surface *screen;

     SDL_Event event;

     int keypress = ;

     int h = ;

     if (SDL_Init(SDL_INIT_EVERYTHING) == - ) {

         cout << "error: " << SDL_GetError() << endl;

         return ;

     }

     SDL_Window* window = SDL_CreateWindow("hello", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, , , SDL_WINDOW_SHOWN);

     if (window == NULL){

         cout << "Error: " << SDL_GetError() << endl;

         return ;

     }

     SDL_Renderer* renderer = SDL_CreateRenderer(window, -, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);

     if (renderer == NULL){

         cout << "Error: " << SDL_GetError() << endl;

         return ;

     }

     SDL_Surface* surface = SDL_LoadBMP("bk.bmp");

     SDL_Texture* texture = SDL_CreateTextureFromSurface(renderer, surface);

     SDL_FreeSurface(surface);

     SDL_RenderClear(renderer);                  //清除屏幕

     SDL_RenderCopy(renderer, texture, , );    //把texture画到renderer上

     SDL_RenderPresent(renderer);

     while(!keypress)

     {

         //DrawScreen(screen, h++);

         while(SDL_PollEvent(&event))

         {

             switch (event.type)

             {

                 case SDL_QUIT:

                     keypress = ;

                     break;

                 case SDL_KEYDOWN:

                     keypress = ;

                     break;

             }

         }

     }

     SDL_Quit();

     return ;

 }