SDL lib的问题 [英] problem with SDL lib

问题描述

你好

我已经安装了sdl lib并且我创建了一个简单的程序来创建窗口，但它不起作用 

这些错误出现，我找不到解决方案，请任何人帮助我 

错误是：

错误 2
错误LNK2019：未解析的外部符号_SDL_CreateWindow在函数_SDL_main
C：\Dev \ Project1 \ Project1 \ main.obj Project1

错误 3
错误LNK2019：未解析的外部符号_SDL_CreateRenderer在function _SDL_main
C：\Dev \ Project1 \ Project1 \ main.obj Project1

错误 4
错误LNK2019：函数_SDL_main中引用的未解析的外部符号_SDL_SetRenderDrawColor
C：\Dev \ Project1 \\ Project1 \ main.obj Project1

错误 5
错误LNK2019：函数_SDL_main中引用的未解析的外部符号_SDL_RenderClear
C：\Dev \ Project1 \ Project1 \ main.obj Project1

错误 6
错误LNK2019：函数_SDL_main中引用的未解析的外部符号_SDL_RenderPresent
C：\Dev \ Project1 \ Project1 \ main.obj Project1

错误 7
错误LNK2019：函数_SDL_main中引用的未解析外部符号_SDL_Delay
C：\Dev \\ \\ Project1 \ Project1 \ main.obj Project1

错误 8
错误LNK2019：未解析的外部符号_SDL_Init在函数_SDL_main中引用
C：\Dev \ Project1 \ Project1 \ main.obj Project1

错误 9
错误LNK2019：函数___ tmainCRTStartup
C：\Dev \Project1 \ Project1 \ MSVCRTD.lib（crtexe.obj）
Project1

错误 10
错误LNK1120：8个未解析的外部 C：\Dev \ Project1 \Debug \ Project1。 exe
Project1

，代码为：

#include" SDL.h"

using namespace std;



int main（int argc，char * argv [ ]）

{

SDL_Init（SDL_INIT_EVERYTHING）;

SDL_Window * window = SDL_CreateWindow（" title"，SDL_WINDOWPOS_CENTERED，SDL_WINDOWPOS_CENTERED，600,400，SDL_WINDOW_SHOWN）;

SDL_Renderer * renderer = SDL_CreateRenderer（window，-1,0）;

SDL_SetRenderDrawColor（渲染器，0,255,0,255）;

SDL_RenderClear（渲染器）;

SDL_RenderPresent（渲染器）;

SDL_Delay（3000）;

返回0 ; $
}

 

解决方案

我认为你必须使用一些库（.lib）文件。查看本产品的文档和可用文件。也许你可以添加像
这样的指令：

#pragma comment（lib，" sdl2.lib"）

hello

i have installed sdl lib and i made a simple program to create window but it dose not work 

these errors appear and i could not find a solution ,please can any one help me 

the errors are :

Error 2 error LNK2019: unresolved external symbol _SDL_CreateWindow referenced in function _SDL_main C:\Dev\Project1\Project1\main.obj Project1
Error 3 error LNK2019: unresolved external symbol _SDL_CreateRenderer referenced in function _SDL_main C:\Dev\Project1\Project1\main.obj Project1
Error 4 error LNK2019: unresolved external symbol _SDL_SetRenderDrawColor referenced in function _SDL_main C:\Dev\Project1\Project1\main.obj Project1
Error 5 error LNK2019: unresolved external symbol _SDL_RenderClear referenced in function _SDL_main C:\Dev\Project1\Project1\main.obj Project1
Error 6 error LNK2019: unresolved external symbol _SDL_RenderPresent referenced in function _SDL_main C:\Dev\Project1\Project1\main.obj Project1
Error 7 error LNK2019: unresolved external symbol _SDL_Delay referenced in function _SDL_main C:\Dev\Project1\Project1\main.obj Project1
Error 8 error LNK2019: unresolved external symbol _SDL_Init referenced in function _SDL_main C:\Dev\Project1\Project1\main.obj Project1
Error 9 error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup C:\Dev\Project1\Project1\MSVCRTD.lib(crtexe.obj) Project1
Error 10 error LNK1120: 8 unresolved externals C:\Dev\Project1\Debug\Project1.exe Project1

and the code is :

#include "SDL.h"
using namespace std;

int main(int argc, char * argv[])
{
SDL_Init(SDL_INIT_EVERYTHING);
SDL_Window * window = SDL_CreateWindow("title", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 600, 400, SDL_WINDOW_SHOWN);
SDL_Renderer * renderer = SDL_CreateRenderer(window, -1, 0);
SDL_SetRenderDrawColor(renderer, 0, 255, 0, 255);
SDL_RenderClear(renderer);
SDL_RenderPresent(renderer);
SDL_Delay(3000);
return 0;
}

 

解决方案

I think that you have to use some library (.lib) files. Check the documentation of this product and the available files. Maybe you can add a directive like this:

#pragma comment( lib, "sdl2.lib" )

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