Глобальный хук

//"UMyDLL.h"
#ifndef _UHOTKEY_H
#define _UHOTKEY_H
#ifdef __DLL__
#define DLL_EI __declspec(dllexport)
#else
#define DLL_EI __declspec(dllimport)
#endif
extern "C" void DLL_EI StartHook();
extern "C" void DLL_EI RemoveHook();
#endif
//*********************************
#include <vcl.h>
#include <windows.h>
#pragma hdrstop
#pragma argsused
#include "UMyDLL.h"
HHOOK HKey = 0;
int _stdcall Tracer_Hook(int code, int wParam, int lParam)
{
/*
     if (code > 0 && wParam == HCBT_CREATEWND)
        {
 
   return 1;
        }
       else
      {
       return CallNextHookEx(HKey, code, wParam, lParam);
      }
*/
}
 
void StartHook()
{
 HKey = SetWindowsHookEx(WH_CBT,(WNDENUMPROC)Tracer_Hook,HInstance,0);
 if (HKey==0)
 {
  MessageBox(0, "Не удалось включить отслеживание программы Tracer", "Ошибка", MB_OK);
 }
}
void RemoveHook()
{
  if (HKey!=0)
  {
   UnhookWindowsHookEx(HKey);
   HKey = 0;
  }
}
 
int WINAPI DllEntryPoint(HINSTANCE hinst, unsigned long reason, void* lpReserved)
{
 if((reason == DLL_THREAD_DETACH) || (reason == DLL_PROCESS_DETACH))
   {
     if (HKey!=0)
    UnhookWindowsHookEx(HKey);
    }
   return 1;
}
//---------------------------------------------------------------------------