SDL-windows首次使用

说明：

基于SDL 2.0，和vs2017。

1. 下载库文件：

​​http://www.libsdl.org/download-2.0.php​​​
选择Development Libraries -> windows。

2. 导入头文件、lib文件、dll文件

• vs2017 新建工程。
• 将下载的库中的 include、lib、共享库中的dll文件拷贝到项目中。
• 添加库文件目录：右键项目属性-配置属性-链接器-常规-附加库目录。
• 添加依赖库文件：右键项目属性-配置属性链接器-输入-附加依赖项：
  SDL2.lib
• 把 SDL2.dll 拷贝到项目Debug目录下。

3. 编写代码

下面代码是在SDL上显示红色。

#include "stdafx.h"

#include "SDL.h"
#include "SDL_video.h"
#include "SDL_version.h"


#define IMG_PATH "D:\\11.bmp"
#undef main  //SDL 中定义了main，所以这里去掉，不然会执行错误！

int main(int argc,char **argv)
{
    printf("\n");

    printf("Hello SDL\n");

    SDL_version compiled;
    SDL_VERSION(&compiled);

    printf("SDL version %d.%d.%d ...\n",compiled.major, compiled.minor, compiled.patch);

    SDL_Window* window;
    SDL_Renderer* renderer;


    //下面例子来自官网
    //https://wiki.libsdl.org/SDL_RenderPresent

    /* Initialize SDL. */
    if (SDL_Init(SDL_INIT_VIDEO) < 0)
        return 1;

    /* Create the window where we will draw. */
    window = SDL_CreateWindow("SDL_RenderClear",
        SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
        512, 512,
        0);

    /* We must call SDL_CreateRenderer in order for draw calls to affect this window. */
    renderer = SDL_CreateRenderer(window, -1, 0);

    /* Select the color for drawing. It is set to red here. */
    SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);

    /* Clear the entire screen to our selected color. */
    SDL_RenderClear(renderer);

    /* Up until now everything was drawn behind the scenes.
    This will show the new, red contents of the window. */
    SDL_RenderPresent(renderer);

    /* Give us time to see the window. */
    SDL_Delay(5000);

    /* Always be sure to clean up */
    SDL_Quit();

}