DLL导出类

来源:互联网 发布:python编程思想 编辑:程序博客网 时间:2024/06/14 01:26
DLL头文件:
#ifndef _DLL_SAMPLE_H
#define _DLL_SAMPLE_H

// 通过宏来控制是导入还是导出
#ifdef _DLL_SAMPLE
#define DLL_SAMPLE_API __declspec(dllexport)
#else
#define DLL_SAMPLE_API __declspec(dllimport)
#endif

// 导出/导入变量声明
 class DLL_SAMPLE_API DLLClass
{
  public:
    void Show();
}
;

#undef DLL_SAMPLE_API

#endif

DLL实现文件:
#include "stdafx.h"
#define _DLL_SAMPLE

#ifndef _DLL_SAMPLE_H
#include "DLLSample.h"
#endif

#include "stdio.h"

//APIENTRY声明DLL函数入口点
BOOL APIENTRY DllMain(HANDLE 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;
}


void DLLClass::Show()
{
  printf("DLLClass show!");
}

应用程序调用DLL
#include "DLLSample.h"

#pragma comment(lib,"DLLSample.lib")


int main(int argc, char *argv[])
{
 DLLClass dc;
  dc.Show();
 return 0;
}

0 0