#define WIN32_LEAN_AND_MEAN

#include <windows.h>
#include "keyhook.h"

HINSTANCE    ghInst;
HWND         hWnd;
HHOOK        hHook;

BOOL APIENTRY DllMain( HANDLE hModule, 
                       DWORD  ul_reason_for_call, 
                       LPVOID lpReserved
                     )
{
    switch(ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
        ghInst = (HINSTANCE)hModule;
        LPCTSTR szWindowClass   = TEXT(CLASS_NAME);
        LPCTSTR szTitle         = TEXT(TITLE_NAME);
        if((hWnd = FindWindow(szWindowClass, szTitle)) == NULL){
            return TRUE;
        }
        break;
    }
    return TRUE;
}



EXPORT LRESULT CALLBACK MyHookProc(int nCode, WPARAM wParam, LPARAM lParam)
{
    if(nCode == HC_ACTION){
        SendMessage(hWnd, WM_KEYHOOK, (WPARAM)wParam, (LPARAM)lParam);
    }
    return (CallNextHookEx(NULL, nCode, wParam, lParam));
}



EXPORT BOOL MySetHook(void)
{
    if((hHook = SetWindowsHookEx(WH_KEYBOARD,
        (HOOKPROC)MyHookProc, ghInst, 0)) == NULL){
        return TRUE;
    }
    return FALSE;
}



EXPORT BOOL MyEndHook(void)
{
    if(UnhookWindowsHookEx(hHook) == FALSE){
        return TRUE;
    }

    return FALSE;
}