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Dll 导出类 [示例代码]

發(fā)布時(shí)間：2023/12/31 编程问答 21 豆豆

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1、Dll相關(guān)代碼

MyDll.h

[cpp] view plaincopyprint?

#ifdef DLL1_API?

#else?

#define DLL1_API extern "C" __declspec(dllimport)?

#endif?

DLL1_API int Add(int a,int b);?

DLL1_API int Sub(int a,int b);?

class __declspec(dllexport) Person?

public:?

??? Person(char *name);?

??? char*?? m_Name;?

??? int???? m_Age;?

};?

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

MyDll.cpp

[cpp] view plaincopyprint?

#define DLL1_API extern "C" __declspec(dllexport)?

#include "MyDll.h"?

#include <Windows.h>?

#include <stdio.h>?

#pragma comment(linker,"/DLL")?

#pragma comment(linker,"/ENTRY:DllMain")?

int Add(int a,int b)?

??? return a+b;?

int Sub(int a,int b)?

??? return a-b;?

Person::Person(char *name)?

??? m_Name = name;?

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

編譯鏈接，如下圖：

2、調(diào)用dll中類

Main.cpp

[cpp] view plaincopyprint?

#include <iostream.h>?

#include <stdio.h>?

#include <windows.h>?

#include "MyDll.h"?

#pragma comment(lib,"MyDll.lib")?

void main()?

??? int x=3;?

??? int y=9;?

??? int z=Add(x,y);?

??? printf("%d+%d=%d /r/n", x,y,z);?

?????

??? Person pt("123");?

??? cout<<pt.m_Name<<endl;?

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

編譯鏈接，如下圖：

from:

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

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