创建一个dll文件，并调用
我用的是code:blocks1 创建一个动态链接库工程
main.h
#ifndef __MAIN_H__#define __MAIN_H__#include <windows.h>#include <string>/*To use this exported function of dll, include this header *in your project. */#ifdef BUILD_DLL #define DLL_EXPORT __declspec(dllexport)#else #define DLL_EXPORT __declspec(dllimport)#endif#ifdef __cplusplusextern "C"{#endif//函数的形式void DLL_EXPORT SomeFunction(const std::string sometext);#ifdef __cplusplus}#endif#endif // __MAIN_H__
main.cpp
#include "main.h"#include <iostream>#include <string>// 这里是一个例子函数void DLL_EXPORT SomeFunction(const std::string s){ std::cout<<s<<std::endl;}BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved){ switch (fdwReason) { case DLL_PROCESS_ATTACH: // attach to process // return FALSE to fail DLL load break; case DLL_PROCESS_DETACH: // detach from process break; case DLL_THREAD_ATTACH: // attach to thread break; case DLL_THREAD_DETACH: // detach from thread break; } return TRUE; // succesful}
构建完成，生成dll
2 新建一个控制台程序工程
在头文件中增加
typedef void(*someFunction)(std::string s);
在cpp中调用
#include "wtypes.h".. HINSTANCE hDll; //声明一个Dll实例文件句柄hDll = LoadLibrary("testdll.dll");//testdll.dll动态连接库someFunction f;f = (someFunction)GetProcAddress(hDll,"SomeFunction");f("Hello Dll!");
完成
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