Ловушки (Hook)

#include <Windows.h>
HOOKPROC pKeyHook;
HHOOK hKeyHook;
LRESULT CALLBACK WinProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM lParam)
{
    switch(msg)
    {
    case WM_DESTROY:
        {
            PostQuitMessage(0);
            return 0;
            break;
        }
    default:
        {
            return(DefWindowProc(hwnd,msg,wParam,lParam));
            break;
        }
    }
}
int WINAPI WinMain(HINSTANCE hInst,HINSTANCE,LPSTR,int)
{
    MSG msg;
    WNDCLASSEX wc;
    memset(&wc,0,sizeof(wc));
    wc.cbSize=sizeof(wc);
    wc.style=CS_DBLCLKS|CS_HREDRAW|CS_VREDRAW;
    wc.hInstance=hInst;
    wc.lpfnWndProc=WinProc;
    wc.hIcon=LoadIcon(NULL,IDI_APPLICATION);
    wc.hCursor=LoadCursor(NULL,IDC_ARROW);
    wc.hbrBackground=CreateSolidBrush(RGB(100,150,130));
    wc.lpszClassName=TEXT("MyClass");
    RegisterClassEx(&wc);
    HWND hwnd=CreateWindowEx(WS_EX_CLIENTEDGE,TEXT("MyClass"),TEXT("WinApi Function"),
        WS_OVERLAPPEDWINDOW,150,120,900,500,NULL,NULL,hInst,NULL);
    HINSTANCE hd=LoadLibrary(TEXT("KeyboardHook"));
    HOOKPROC hookp=(HOOKPROC)GetProcAddress(hd,"KeyboardHook");
    HHOOK hook=SetWindowsHookEx(WH_KEYBOARD,hookp,hd,0);
    ShowWindow(hwnd,SW_NORMAL);
    ZeroMemory(&msg,sizeof(msg));
    while(msg.message!=WM_QUIT)
    {
        if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }
    UnhookWindowsHookEx(hook);
    FreeLibrary(hd);
    return 0;
}

#include "stdafx.h"
#include <Windows.h>
extern "C" __declspec(dllexport)
    LRESULT CALLBACK KeyboardHook(int nCode,WPARAM wParam,LPARAM lParam)
{
    MessageBox(NULL,TEXT("Yuuuupiii"),TEXT("Hook"),MB_OK);
    if(nCode<0)
        CallNextHookEx(NULL,nCode,wParam,lParam);
    if ((lParam>>31)&1)
    {
        switch(wParam)
        {
        case VK_CONTROL:
            {
                MessageBeep(25);
                break;
            }
        case VK_MENU:
            {
                MessageBeep(-1);
                break;
            }
        }
    }
    return CallNextHookEx(NULL,nCode,wParam,lParam);
}

LIBRARY "KeyboardHook"
EXPORTS KeyboardHook @1

HINSTANCE hd=LoadLibrary(TEXT("hook.dll"));
HOOKPROC hookp=(HOOKPROC)GetProcAddress(hd,"_KeyboardHook@12");