編譯器：VS2010

需要的知識：DLL的編寫和使用

1.dllmain.cpp

// dllmain.cpp : Defines the entry point for the DLL application.
#include "stdafx.h"

BOOL APIENTRY DllMain( HMODULE hModule,
                       DWORD  ul_reason_for_call,
                       LPVOID lpReserved
					 )
{
	switch (ul_reason_for_call)
	{
	case DLL_PROCESS_ATTACH:
		MessageBoxA(NULL,"DLL_PROCESS_ATTACH","TEST",MB_OK);
		break;
	case DLL_THREAD_ATTACH:
	case DLL_THREAD_DETACH:
	case DLL_PROCESS_DETACH:
		MessageBoxA(NULL,"DLL_PROCESS_DETACH","TEST",MB_OK);
		break;
	}
	return TRUE;
}
 

DLL_PROCESS_DETACH:表示該DLL脫離程序空間時候執行的程式碼

MessageBoxA函式在windows.h標頭檔案中

2.dllTesxt.cpp

#include "stdafx.h"
#include "dllTest.h"
#include <iostream>
using namespace std;
void Show(){
	MessageBoxA(0,"DIAT","",MB_OK);
}

#ifndef TestDll_H_
#define TestDll_H_
#ifndef MYLIBDLL
#define MYLIBDLL extern "C" _declspec(dllexport) 
#endif
MYLIBDLL void Show();
#endif
 

LIBRARY "dllTest"
EXPORTS
Show @1

編譯連結生成兩個檔案dllTest.dll和dllTest.lib

建另外一個工程

1.dll.c

#include<stdio.h>
#include"dll.h"
#include<windows.h>
int main(){
	MessageBoxA(0,"1","1",0);
	printf("1");
	Show();
	printf("2");
	MessageBoxA(0,"2","2",0);
}
 

#pragma comment(lib, "dllTest.lib")
#ifndef TestDll_H_
#define TestDll_H_

#define MYLIBDLL 
#ifdef __cplusplus
   extern "C"
#endif
__declspec(dllimport) 
MYLIBDLL void Show();
#endif

參考資料：

1.《windows核心程式設計》

2.《Windows PE權威指南》