/**
 * @file XTPWinEventHook.cpp
 *
 * @copyright
 * (c) 1998-2025 Codejock Software, All Rights Reserved.
 *
 * This source file is the property of Codejock Software and must not be
 * redistributed by any means without the explicit written permission of
 * Codejock Software.
 *
 * The use of this source code is governed by the terms and conditions specified
 * in the Toolkit Pro license agreement. Codejock Software grants you, as a
 * single software developer, the limited right to use this software on one
 * computer only.
 *
 * Contact Information:
 * support@codejock.com
 * http://www.codejock.com
 *
 */

#include "StdAfx.h"

#include "Common/XTPCasting.h"
#include "Common/Hook/XTPWinEventHook.h"

#include "Common/Base/Diagnostic/XTPDisableNoisyWarnings.h"

#ifdef _DEBUG
#	define new DEBUG_NEW
#	undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

CXTPWinEventHook::CXTPWinEventHook()
	: m_hWinEventHook(NULL)
	, m_pSetWinEventHook(NULL)
	, m_pUnhookWinEvent(NULL)
{
	HMODULE hLibrary = GetModuleHandle(_T("USER32"));

	if (hLibrary)
	{
		m_pSetWinEventHook = XTPToFunctionPtr<LPFNSETWINEVENTHOOK>(
			::GetProcAddress(hLibrary, "SetWinEventHook"));
		m_pUnhookWinEvent = XTPToFunctionPtr<LPFNUNHOOKWINEVENT>(
			::GetProcAddress(hLibrary, "UnhookWinEvent"));
	}
}

CXTPWinEventHook::~CXTPWinEventHook()
{
}

void CXTPWinEventHook::SetEventHook(UINT eventMin, UINT eventMax, WINEVENTPROC pfnEventProc)
{
	if (m_pSetWinEventHook && !m_hWinEventHook)
	{
		m_hWinEventHook = m_pSetWinEventHook(eventMin, eventMax, NULL, pfnEventProc,
											 ::GetCurrentProcessId(), 0, 0);
	}
}

void CXTPWinEventHook::RemoveEventHook()
{
	if (m_pUnhookWinEvent && m_hWinEventHook)
	{
		m_pUnhookWinEvent(m_hWinEventHook);
		m_hWinEventHook = NULL;
	}
}