SDL的程式碼不難理解，看下這個基本的SDL的流程，就明白了個大概
見程式碼

	#include "SDL.h"
    int main(int argc, char* argv[])
    {
    	SDL_Init(SDL_INIT_VIDEO);
    	SDL_Window* window = SDL_CreateWindow("Tutorial", 100, 100,
    		600, 600, SDL_WINDOW_SHOWN);
    	
    	SDL_Surface* surface = SDL_GetWindowSurface(window);
    	SDL_Surface* picture = SDL_LoadBMP("C:\\Users\\xxxx\\Desktop\\1.bmp");
    
    	SDL_BlitSurface(picture, NULL, surface,NULL);
    	SDL_UpdateWindowSurface(window);
    	
    	SDL_Delay(4000);
    	SDL_FreeSurface(picture);
    	SDL_FreeSurface(surface);
    	SDL_DestroyWindow(window);
    	SDL_Quit();
    }