简单的动态连接库,例子

#pragma comment(lib,"Test_of_dll.lib")

#ifndef LIB_H
#define LIB_H
extern "C" int __declspec(dllexport)add(int x,int y);
#endif

#include"stdafx.h"
#include"lib.h"

int add(int x,int y)
{
	return x + y;
}

// Test_of_dllCall.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include"stdio.h"
#include"windows.h"

typedef int(*lpAddFun)(int, int);	//宏定义函数指针类型


int _tmain(int argc, _TCHAR* argv[])
{
	HINSTANCE hDll;		//Dll句柄
	lpAddFun addFun;	//函数指针
	hDll=LoadLibrary("..\\..\\Debug\\Test_of_nonMFCdll.dll");

	if(NULL!=hDll)
	{
		addFun=(lpAddFun)GetProcAddress(hDll,"add");

		if(NULL!=addFun)
		{
			int  result = addFun(2, 3);
			printf("The result of addFun is %d \n",result);
			getchar();
		}


		FreeLibrary(hDll);
	}
	return 0;
}

hDll=LoadLibrary("..\\..\\Debug\\Test_of_nonMFCdll.dll");

The result of addFun is 5