VS2010创建DLL库

墨蓝 2022-09-22 14:58 195阅读 0赞

转载自：http://blog.csdn.net/g710710/article/details/7255744

**一、DLL的创建**  
创建项目: Win32->Win32项目，名称：MyDLL

![0_1329194129Z0wI.gif][]  
选择DLL (D) ->完成.  
![0_1329194135b3Aa.gif][]

1、新建头文件**testdll.h  
testdll.h代码如下：**  
\#ifndef TestDll\_H\_  
\#define TestDll\_H\_  
\#ifdef MYLIBDLL  
\#define MYLIBDLL extern "C" \_declspec(dllimport)  
\#else  
\#define MYLIBDLL extern "C" \_declspec(dllexport)  
\#endif  
MYLIBDLL int Add(int plus1, int plus2);  
//You can also write like this:  
//extern "C" \{  
//\_declspec(dllexport) int Add(int plus1, int plus2);  
//\};  
\#endif  
  
![0_1329194142I7O6.gif][]

![0_1329194151DGfu.gif][]

2、新建源文件**testdll.cpp  
testdll.cpp代码如下：**  
\#include "stdafx.h"  
\#include "testdll.h"  
\#include <iostream>  
using namespace std;  
int Add(int plus1, int plus2)  
\{  
int add\_result = plus1 + plus2;  
return add\_result;  
\}

![0_1329194156LTpt.gif][]  
![0_13291941600y6M.gif][]  
3、新建模块定义文件**mydll.def  
mydll.def代码如下：**  
LIBRARY "MyDLL"  
EXPORTS  
Add @1  
![0_13291941669irv.gif][]  
  
![0_1329194171hlcz.gif][]

4、vs2010自动创建dllmain.cpp文件，它定义了DLL 应用程序的入口点。

dllmain.cpp代码如下：  
// dllmain.cpp : 定义 DLL 应用程序的入口点。  
\#include "stdafx.h"  
BOOL APIENTRY DllMain( HMODULE hModule,  
 DWORD ul\_reason\_for\_call,  
 LPVOID lpReserved  
 )  
\{   
switch (ul\_reason\_for\_call)  
\{   
case DLL\_PROCESS\_ATTACH:  
case DLL\_THREAD\_ATTACH:  
case DLL\_THREAD\_DETACH:  
case DLL\_PROCESS\_DETACH:  
 break;  
\}  
return TRUE;  
\}

最后，编译生成MyDLL.dll文件和MyDLL.lib文件。

![0_1329194175AyZO.gif][]

![0_1329194180WuFo.gif][]

1>------ 已启动生成: 项目: MyDLL, 配置: Debug Win32 ------

1> dllmain.cpp

========== 生成: 成功 1 个，失败 0 个，最新 0 个，跳过 0 个 ==========

1>------ 已启动生成: 项目: MyDLL, 配置: Debug Win32 ------

1> stdafx.cpp

1> testdll.cpp

1> MyDLL.cpp

1> 正在生成代码...

1> 正在创建库 D:\\Visual C++\\工程\\Libaray\\MyDLL\\Debug\\MyDLL.lib 和对象 D:\\Visual C++\\工程\\Libaray\\MyDLL\\Debug

![0_1329194184H42E.gif][]

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[0_1329194151DGfu.gif]: /images/20220721/9dcd834728c142d19c67829d05569442.png
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[0_13291941600y6M.gif]: /images/20220721/45d56379e4de4c8eb618605ae140d75a.png
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[0_1329194180WuFo.gif]: /images/20220721/03dfd46e1a6d42eea81969f32d00fb0e.png
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