hooking dll so far3

// dllmain.h : Defines the entry point for the DLL application.
#pragma once
#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <Windows.h>
using namespace std;

 HINSTANCE currentProcessHandle;
 HOOKPROC hkprcSysMsg;
 HHOOK hookID;

BOOL APIENTRY DllMain( HMODULE hModule, DWORD  ul_reason_for_call, LPVOID lpReserved)
{
    //std::ofstream outfile("test.txt");


    switch (ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
        currentProcessHandle = hModule;
        break;
    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
    case DLL_PROCESS_DETACH:
        break;
    }
    return TRUE;
}

LRESULT CALLBACK HookProcedure(int nCode, WPARAM wparam, LPARAM lparam)
{
    std::ofstream outfile("test.txt");
    if (nCode >= 0)
    {
        switch (nCode)
        {
        case HCBT_CREATEWND:
            outfile << L"Created!~";
            cout << "Created!~" << endl;
            break;
        case HCBT_DESTROYWND:
            outfile << L"Destroied!~";
            cout << "Destroied!~" << endl;
            break;
        default:
            cout << "sth else" << endl;
            break;
        }
    }
    else
    {
        return CallNextHookEx(hookID, nCode, wparam, lparam);
    }
    outfile.close();
}

__declspec(dllimport) void InstallHook();
__declspec(dllimport) void UnistallHook();


################################################################################################
//dllmain.cpp
#pragma once
#include "dllmain.h"
void InstallHook()
{
    hookID = SetWindowsHookEx(WH_CBT, HookProcedure, currentProcessHandle, 0);
}

void UnistallHook()
{
    UnhookWindowsHookEx(hookID);
}

###########################################################################
// Hook Executer.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "..\Dll\dllmain.cpp"
#include <iostream>
using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
    int num = -1;
    cout << "1.Install Hook"<<endl
        << "2.Unistall Hook"<<endl
        << "0.Exit";
    do{
        cin >> num;
        if (num ==1)
        {
            InstallHook();

        }
        else
        {
            UnistallHook();
        }
        getchar();
        system("cls");
        cout << "1.Install Hook" << endl
            << "2.Unistall Hook" << endl
            << "0.Exit";
    } while (num != 0 && num < 3);


    return 0;
}