//Interface.h文件內容如下：
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#pragma once
#include <windows.h>
//function point demo
#define ISOURCOMPANYKEY "IsOurCompanyKey"
typedef INT (WINAPI* IsOurCompanyKey) (VOID);
class Bluebottle
{
public:
Bluebottle(LPCSTR szDllPath) : m_hModule(NULL)
{
m_hModule = LoadLibraryA(szDllPath);
}
~Bluebottle()
{
if(m_hModule)
FreeLibrary(m_hModule);
m_hModule = NULL;
}
FARPROC GetFunc(LPCSTR szFuncName)
{
if(m_hModule)
{
return GetProcAddress(m_hModule, szFuncName);
}
return NULL;
}
protected:
HMODULE m_hModule;
};
//調用過程如下
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#include <windows.h>
#include <tchar.h>
#include <stdio.h>
#include "Interface.h"
//dll name
#define DLLNAME _T("Verify.dll")
BOOL main(int argc, PCHAR argv[])
{
_tprintf(_T("Test called dll's function./n"));
INT32 uI32Ret = -1;
Bluebottle PingZi(DLLNAME);
IsOurCompanyKey pfnOurKey = NULL;
pfnOurKey = (IsOurCompanyKey)PingZi.GetFunc(ISOURCOMPANYKEY);
if (NULL == pfnOurKey)
{
_tprintf(_T("get dll's functions point error."));
return FALSE;
}
uI32Ret = pfnOurKey();
_tprintf(_T("IsOurCompanyKey's ret code：%d/nOver"), uI32Ret);
return TRUE;
}