Dll 匯出類 [範例程式碼]

1、Dll相關代碼

MyDll.h

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1. #ifdef DLL1_API 
2. #else 
3. #define DLL1_API extern "C" __declspec(dllimport) 
4. #endif 
5. DLL1_API int Add(int a,int b); 
6. DLL1_API int Sub(int a,int b); 
7. class __declspec(dllexport) Person 
8. { 
9. public: 
10.     Person(char *name); 
11.     char*   m_Name; 
12.     int     m_Age; 
13. }; 

#ifdef DLL1_API<br />#else<br />#define DLL1_API extern "C" __declspec(dllimport)<br />#endif<br />DLL1_API int Add(int a,int b);<br />DLL1_API int Sub(int a,int b);<br />class __declspec(dllexport) Person<br />{<br />public:<br /> Person(char *name);<br /> char* m_Name;<br />int m_Age;<br />};

 

MyDll.cpp

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1. #define DLL1_API extern "C" __declspec(dllexport) 
2. #include "MyDll.h" 
3. #include <Windows.h> 
4. #include <stdio.h> 
5. #pragma comment(linker,"/DLL") 
6. #pragma comment(linker,"/ENTRY:DllMain") 
7. int Add(int a,int b) 
8. { 
9.     return a+b; 
10. } 
11. int Sub(int a,int b) 
12. { 
13.     return a-b; 
14. } 
15. Person::Person(char *name) 
16. { 
17.     m_Name = name; 
18. } 

#define DLL1_API extern "C" __declspec(dllexport)<br />#include "MyDll.h"<br />#include <Windows.h><br />#include <stdio.h><br />#pragma comment(linker,"/DLL")<br />#pragma comment(linker,"/ENTRY:DllMain")<br />int Add(int a,int b)<br />{<br /> return a+b;<br />}<br />int Sub(int a,int b)<br />{<br /> return a-b;<br />}<br />Person::Person(char *name)<br />{<br /> m_Name = name;<br />}

 

編譯連結，如：

2、調用dll中類

Main.cpp

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1. #include <iostream.h> 
2. #include <stdio.h> 
3. #include <windows.h> 
4. #include "MyDll.h" 
5. #pragma comment(lib,"MyDll.lib") 
6. void main() 
7. { 
8.     int x=3; 
9.     int y=9; 
10.     int z=Add(x,y); 
11.     printf("%d+%d=%d /r/n", x,y,z); 
12.      
13.     Person pt("123"); 
14.     cout<<pt.m_Name<<endl; 
15. } 

#include <iostream.h><br />#include <stdio.h><br />#include <windows.h><br />#include "MyDll.h"<br />#pragma comment(lib,"MyDll.lib")<br />void main()<br />{<br />int x=3;<br />int y=9;<br />int z=Add(x,y);<br />printf("%d+%d=%d /r/n", x,y,z);</p><p>Person pt("123");<br /> cout<<pt.m_Name<<endl;<br />}

 

編譯連結，如：

 

 

from:

http://blog.csdn.net/wangningyu/article/details/5467550