SDL显示一张图片

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把图片放在C:\Users\admin\Documents\visual studio 2010\Projects\SDL3\SDL3下

过程：1.将bmp文件转化为SDL_Surface格式

2.将转化后的SDL_Surface块移（blit）到SDL_Surface建立的suface上。

3.将surface显示出来

// SDL3.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h"#include <iostream>void LOOP();void PressESC();int d;int _tmain(int argc, _TCHAR* argv[]){try{if(SDL_Init(SDL_INIT_VIDEO==-1))throw SDL_GetError();}catch(const char* s){std::cerr<<s << std::endl;return -1;}atexit(SDL_Quit);SDL_Surface* pScreen=0;pScreen=SDL_SetVideoMode(640,480,32,SDL_SWSURFACE);try{if(pScreen==0){throw SDL_GetError();}else{std::cout<<"pScreen init successful"<<std::endl;}}catch(const char* s){std::cerr<<"pScreen init failed"<<"s"<<std::endl;}SDL_Surface* pShownBMP=0;pShownBMP=SDL_LoadBMP("hello.bmp");try{if(pShownBMP==0){throw SDL_GetError();}else{std::cout<< "SDL_LoadBMP successful"<<std::endl;}}catch(const char *s){std::cerr<<"SDL_LoadBMP failed"<<s<<std::endl;SDL_Quit();return -1;}_sleep(5*1000);SDL_Rect* pSrcRect=0;SDL_Rect* pDstRect=0;try{if(SDL_BlitSurface(pShownBMP,pSrcRect,pScreen,pDstRect)!=0){throw SDL_GetError();}else{std::cout<<"SDL_BlitSurface successful"<<std::endl;}}catch(const char* s){std::cerr<< s << std::endl;}try{if(SDL_Flip(pScreen)!=0){throw SDL_GetError();}else{std::cout<<"the SDL_Flip successful"<<std::endl;}}catch(const char* s){std::cerr<<"the SDL_Flip failed"<<s<<std::endl;}std::cout<<"press ESC to exit"<<std::endl;PressESC();system("pause");return 0;}void PressESC(){bool gameOver=false;std::cout<<"you press the ESC"<<std::endl;while(gameOver==false){SDL_Event game;SDL_PollEvent(&game);if(&game!=0){if(game.type==SDL_QUIT){gameOver=true;}if(game.type==SDL_KEYDOWN){if(game.key.keysym.sym==SDLK_ESCAPE){gameOver=true;}}}LOOP();}return;}void LOOP(){d++;std::cout<<"-"<<d<<std::endl;return;}

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