//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// hook.cpp


#define _HOOK_CPP

#include "..\nodoka\misc.h"

#include "..\nodoka\hook.h"
#include "..\nodoka\stringtool.h"
#include "..\nodoka\nodoka.h"

#include <locale.h>
#include <imm.h>
#include <richedit.h>

// Some applications use different values for below messages
// when double click of title bar.
#define SC_MAXIMIZE2 (SC_MAXIMIZE + 2)
#define SC_MINIMIZE2 (SC_MINIMIZE + 2)
#define SC_RESTORE2 (SC_RESTORE + 2)


//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Global Variables

#pragma comment(linker, "/section:shared,rws")
#pragma data_seg("shared")

HHOOK m_hHookGetMessage = NULL;		///
HHOOK m_hHookCallWndProc = NULL;	///
HHOOK m_hHookGetSync = NULL;		///
bool m_isHooked = false;
HHOOK m_hHookMouseProc = NULL;		///
HHOOK m_hHookKeyboardProc = NULL;	///

#pragma data_seg()


struct Globals
{
	HANDLE m_hHookDataDll;			///
	HookData *hookDataDll;			///
	bool m_isMaped;					///
	HWND m_hwndFocus;				/// 
	HINSTANCE m_hInstDLL;			///
	bool m_isInMenu;				///
	UINT m_WM_NODOKA_MESSAGE;		///
	bool m_isImeLock;				///
	bool m_isImeCompositioning;		///
	bool m_isKanaLock;				///
	bool m_isCandidateWindow;		///
	INPUT_DETOUR m_keyboardDetour;
	INPUT_DETOUR m_mouseDetour;
	Engine *m_engine;
};

static Globals g;


//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Prototypes


static void notifyThreadDetach(void);
static void notifyShow(NotifyShow::Show i_show, bool i_isMDI);
static void notifyLog(_TCHAR *i_msg);

static bool mapHookData(void);
static void unmapHookData(void);

void EnableChangeWindowMessageFilter(void);
void DisableChangeWindowMessageFilter(void);

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Functions

/// EntryPoint
BOOL WINAPI DllMain(HINSTANCE i_hInstDLL, DWORD i_fdwReason,
					LPVOID /* i_lpvReserved */)
{
	HMODULE hModule = GetModuleHandle(TEXT("user32.dll"));

	switch (i_fdwReason)
	{
	case DLL_PROCESS_ATTACH:
		{
			g.m_hInstDLL = i_hInstDLL;
			_tsetlocale(LC_ALL, _T(""));

			if(hModule !=NULL)
				g.m_WM_NODOKA_MESSAGE = RegisterWindowMessage(addSessionId(WM_NODOKA_MESSAGE_NAME).c_str());
			EnableChangeWindowMessageFilter();

			break;
		}

	case DLL_THREAD_ATTACH:
		EnableChangeWindowMessageFilter();
		break;

	case DLL_PROCESS_DETACH:
		notifyThreadDetach();
		unmapHookData();
		break;

	case DLL_THREAD_DETACH:
		notifyThreadDetach();
		break;

	default:
		break;
	}
	return TRUE;
}

/// Enable/DisableChangeWindowMessageFilter() for Vista
void EnableChangeWindowMessageFilter()
{

	//HMODULE dll = LoadLibrary(TEXT("user32.dll"));
	FUNCTYPE ChangeWindowMessageFilter = (FUNCTYPE)GetProcAddress(LoadLibrary(TEXT("user32.dll")) , "ChangeWindowMessageFilter");

	if(ChangeWindowMessageFilter != NULL)
	{
		BOOL bFlag = ChangeWindowMessageFilter(WM_APP + 101, MSGFLT_ADD);	// WM_APP_taskTrayNotify 

		ChangeWindowMessageFilter(WM_APP + 102, MSGFLT_ADD);	// WM_APP_msgStreamNotify
		ChangeWindowMessageFilter(WM_APP + 103, MSGFLT_ADD);	// WM_APP_notifyFocus
		ChangeWindowMessageFilter(WM_APP + 104, MSGFLT_ADD);	// WM_APP_notifyVKey
		ChangeWindowMessageFilter(WM_APP + 105, MSGFLT_ADD);	// WM_APP_targetNotify
		ChangeWindowMessageFilter(WM_APP + 110, MSGFLT_ADD);	// WM_APP_engineNotify
		ChangeWindowMessageFilter(WM_APP + 115, MSGFLT_ADD);	// WM_APP_dlglogNotify
		ChangeWindowMessageFilter(WM_APP + 116, MSGFLT_ADD);	// WM_APP_SendKey
		ChangeWindowMessageFilter(WM_APP + 120, MSGFLT_ADD);	// WM_APP_NotifyThreadDetach
		//ChangeWindowMessageFilter(WM_APP + 121, MSGFLT_ADD);	// WM_APP_NotifySync
		ChangeWindowMessageFilter(WM_APP + 122, MSGFLT_ADD);	// WM_APP_NotifyLockState
		ChangeWindowMessageFilter(WM_APP + 201, MSGFLT_ADD);	// for Touchpad
		ChangeWindowMessageFilter(WM_APP + 202, MSGFLT_ADD);	// for gamepad
		ChangeWindowMessageFilter(WM_APP + 203, MSGFLT_ADD);	// for mouse

		UINT WM_NODOKA_MESSAGE = RegisterWindowMessage(addSessionId(WM_NODOKA_MESSAGE_NAME).c_str());

		ChangeWindowMessageFilter(WM_NODOKA_MESSAGE, MSGFLT_ADD);	// for Touchpad

		ChangeWindowMessageFilter(WM_CREATE, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_DESTROY, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_MOVE, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_SIZE, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_ACTIVATE, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_SETFOCUS, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_KILLFOCUS, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_PAINT, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_CLOSE, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_QUERYENDSESSION, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_ACTIVATEAPP, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_MOUSEACTIVATE, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_COPYDATA, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_NOTIFY, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_SETICON, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_NCDESTROY, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_NCHITTEST, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_NCACTIVATE, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_GETDLGCODE, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_KEYDOWN, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_KEYUP, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_CHAR, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_DEADCHAR, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_SYSKEYDOWN, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_SYSKEYUP, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_IME_STARTCOMPOSITION	, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_IME_ENDCOMPOSITION, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_INITDIALOG, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_COMMAND, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_SYSCOMMAND, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_TIMER, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_MOUSEMOVE, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_LBUTTONDOWN, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_LBUTTONUP, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_ENTERMENULOOP, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_EXITMENULOOP, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_SIZING, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_IME_NOTIFY, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_WTSSESSION_CHANGE, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_LBUTTONDBLCLK, MSGFLT_ADD);	// 
		ChangeWindowMessageFilter(WM_MBUTTONDOWN, MSGFLT_ADD);	// 
	}
}

void DisableChangeWindowMessageFilter()
{
	//HMODULE dll = LoadLibrary(TEXT("user32.dll"));
	FUNCTYPE ChangeWindowMessageFilter = (FUNCTYPE)GetProcAddress(LoadLibrary(TEXT("user32.dll")) , "ChangeWindowMessageFilter");

	if(ChangeWindowMessageFilter != NULL)
	{
		ChangeWindowMessageFilter(WM_APP + 101, MSGFLT_REMOVE);	// WM_APP_taskTrayNotify 
		ChangeWindowMessageFilter(WM_APP + 102, MSGFLT_REMOVE);	// WM_APP_msgStreamNotify
		ChangeWindowMessageFilter(WM_APP + 103, MSGFLT_REMOVE);	// WM_APP_notifyFocus
		ChangeWindowMessageFilter(WM_APP + 104, MSGFLT_REMOVE);	// WM_APP_notifyVKey
		ChangeWindowMessageFilter(WM_APP + 105, MSGFLT_REMOVE);	// WM_APP_targetNotify
		ChangeWindowMessageFilter(WM_APP + 110, MSGFLT_REMOVE);	// WM_APP_engineNotify
		ChangeWindowMessageFilter(WM_APP + 115, MSGFLT_REMOVE);	// WM_APP_dlglogNotify
		ChangeWindowMessageFilter(WM_APP + 116, MSGFLT_REMOVE);	// WM_APP_SendKey
		ChangeWindowMessageFilter(WM_APP + 120, MSGFLT_REMOVE);	// WM_APP_NotifyThreadDetach
		//ChangeWindowMessageFilter(WM_APP + 121, MSGFLT_REMOVE);	// WM_APP_NotifySync
		ChangeWindowMessageFilter(WM_APP + 122, MSGFLT_REMOVE);	// WM_APP_NotifyLockState
		ChangeWindowMessageFilter(WM_APP + 201, MSGFLT_REMOVE);	// for Touchpad
		ChangeWindowMessageFilter(WM_APP + 202, MSGFLT_REMOVE);	// for gamepad
		ChangeWindowMessageFilter(WM_APP + 203, MSGFLT_REMOVE);	// for mouse

		UINT WM_NODOKA_MESSAGE = RegisterWindowMessage(addSessionId(WM_NODOKA_MESSAGE_NAME).c_str());

		ChangeWindowMessageFilter(WM_NODOKA_MESSAGE, MSGFLT_REMOVE);	// for Touchpad
	}
}

// determine processor architecture
void getSysInfo(SYSTEM_INFO *sysInfo)
{
	static bool first = true;
	static void (WINAPI *pGetNativeSystemInfo)(LPSYSTEM_INFO);
	if (first) {
		first = false;
		*(FARPROC *)&pGetNativeSystemInfo =
			GetProcAddress(LoadLibrary(_T("kernel32")), "GetNativeSystemInfo");
	}
	if (pGetNativeSystemInfo) {
		pGetNativeSystemInfo(sysInfo);
		return;
	}
	GetSystemInfo(sysInfo);
}

/// Check OS
BOOL isXP(void)
{
	// Vista以降なら FALSE. XP, 2000だったら TRUE;
	OSVERSIONINFO ver;
	ZeroMemory(&ver, sizeof(OSVERSIONINFO));
	ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
	GetVersionEx(&ver);

	SYSTEM_INFO sysInfo;
	getSysInfo(&sysInfo);

	if(ver.dwMajorVersion < 6)
		return TRUE;
	return FALSE;
}

/// map hook data
static bool mapHookData()
{
	DWORD dwDesiredAccess = FILE_MAP_READ | FILE_MAP_WRITE;

	g.m_hHookDataDll = OpenFileMapping(dwDesiredAccess, FALSE, addSessionId(HOOK_DATA_NAME).c_str());

	if (g.m_hHookDataDll == NULL)
	{
		dwDesiredAccess = FILE_MAP_READ;
		g.m_hHookDataDll = OpenFileMapping(dwDesiredAccess, FALSE, addSessionId(HOOK_DATA_NAME).c_str());

		if (g.m_hHookDataDll == NULL)
		{
			g.m_isMaped = false;
			return false;
		}
	}

	g.hookDataDll = (HookData *)MapViewOfFile(g.m_hHookDataDll, dwDesiredAccess, 0, 0, sizeof(HookData));
	if (g.hookDataDll == NULL)
	{
		unmapHookData();
		g.m_isMaped = false;
		return false;
	}

	g.m_isMaped = true;
	return true;
}


/// unmap hook data
static void unmapHookData()
{
	g.m_isMaped = false;

	if (g.hookDataDll != NULL)
		if (!UnmapViewOfFile(g.hookDataDll))
			return;
	g.hookDataDll = NULL;

	if(g.m_hHookDataDll != NULL)
		CloseHandle(g.m_hHookDataDll);
	g.m_hHookDataDll = NULL;
}

/// notify
bool notify(void *i_data, size_t i_dataSize)
{
	COPYDATASTRUCT cd;
#ifdef _WIN64
	DWORD_PTR result;
#else
	DWORD result;
#endif
	HMODULE hModule;

	if(!g.m_isMaped || !m_isHooked)
		return false;

	cd.dwData = reinterpret_cast<Notify *>(i_data)->m_type;
	cd.cbData = (DWORD)i_dataSize;
	cd.lpData = (LPVOID)i_data;

	bool retVal = false;
	DWORD dwLock = 0;

	hModule = GetModuleHandle(TEXT("user32.dll"));

	if(hModule != NULL)
	{
		switch(cd.dwData)
		{
			/*
			case Notify::Type_sync:
				SendNotifyMessage((HWND)g.hookDataDll->m_hwndTaskTray,
					WM_APP_NotifySync,
					NULL, NULL);
				retVal = true;
				break;
			*/
			case Notify::Type_lockState:
				dwLock  = reinterpret_cast<NotifyLockState *>(i_data)->m_isNumLockToggled ? 1 : 0;
				dwLock += reinterpret_cast<NotifyLockState *>(i_data)->m_isCapsLockToggled ? 2 : 0;
				dwLock += reinterpret_cast<NotifyLockState *>(i_data)->m_isScrollLockToggled ? 4 : 0;
				dwLock += reinterpret_cast<NotifyLockState *>(i_data)->m_isKanaLockToggled ? 8 : 0;
				dwLock += reinterpret_cast<NotifyLockState *>(i_data)->m_isImeLockToggled ? 16 : 0;
				dwLock += reinterpret_cast<NotifyLockState *>(i_data)->m_isImeCompToggled ? 32 : 0;
				dwLock += reinterpret_cast<NotifyLockState *>(i_data)->m_isCandidateWindow ? 64 : 0;

				SendNotifyMessage((HWND)g.hookDataDll->m_hwndTaskTray,
					WM_APP_NotifyLockState,
					(WPARAM)dwLock, NULL);
				retVal = true;
				break;
			case Notify::Type_threadDetach:
				SendNotifyMessage((HWND)g.hookDataDll->m_hwndTaskTray,
					WM_APP_NotifyThreadDetach,
					reinterpret_cast<NotifyThreadDetach *>(i_data)->m_threadId,	NULL);
				retVal = true;
				break;
			default:
				if(!SendMessageTimeout((HWND)g.hookDataDll->m_hwndTaskTray, WM_COPYDATA, NULL, reinterpret_cast<LPARAM>(&cd), SMTO_ABORTIFHUNG | SMTO_NORMAL, 5000, &result))
					retVal = false;
				else
					retVal = true;
				break;
		}
	}
	return retVal;
}

/// get class name and title name
static void getClassNameTitleName(HWND i_hwnd, bool i_isInMenu, 
								  tstringi *o_className,
								  tstring *o_titleName)
{
	tstringi &className = *o_className;
	tstring &titleName = *o_titleName;

	bool isTheFirstTime = true;

	if (i_isInMenu)
	{
		className = titleName = _T("MENU");
		isTheFirstTime = false;
	}

	while (true)
	{
		_TCHAR buf[MAX(GANA_MAX_PATH, GANA_MAX_ATOM_LENGTH)];

		// get class name
		if (i_hwnd)
			GetClassName(i_hwnd, buf, NUMBER_OF(buf));
		else
			GetModuleFileName(GetModuleHandle(NULL), buf, NUMBER_OF(buf));
		buf[NUMBER_OF(buf) - 1] = _T('\0');
		if (isTheFirstTime)
			className = buf;
		else
			className = tstringi(buf) + _T(":") + className;

		// get title name
		if (i_hwnd)
		{
			GetWindowText(i_hwnd, buf, NUMBER_OF(buf));
			buf[NUMBER_OF(buf) - 1] = _T('\0');
			for (_TCHAR *b = buf; *b; ++ b)
				if (_istlead(*b) && b[1])
					b ++;
				else if (_istcntrl(*b))
					*b = _T('?');
		}
		if (isTheFirstTime)
			titleName = buf;
		else
			titleName = tstring(buf) + _T(":") + titleName;

		// next loop or exit
		if (!i_hwnd)
			break;
		i_hwnd = GetParent(i_hwnd);
		isTheFirstTime = false;
	}
}


/// update show
static void updateShow(HWND i_hwnd, NotifyShow::Show i_show)
{
	bool isMDI = false;

	if (!i_hwnd)
		return;

	LONG_PTR style = GetWindowLongPtr(i_hwnd, GWL_STYLE);
	if (!(style & WS_MAXIMIZEBOX) && !(style & WS_MAXIMIZEBOX))
		return; // ignore window that has neither maximize or minimize button

	if (style & WS_CHILD)
	{
		LONG_PTR exStyle = GetWindowLongPtr(i_hwnd, GWL_EXSTYLE);
		if (exStyle & WS_EX_MDICHILD)
		{
			isMDI = true;
		}
		else
			return; // ignore non-MDI child window case
	}

	notifyShow(i_show, isMDI);
}


/// notify WM_Targetted
static void notifyName(HWND i_hwnd, Notify::Type i_type = Notify::Type_name)
{
	tstringi className;
	tstring titleName;
	getClassNameTitleName(i_hwnd, g.m_isInMenu, &className, &titleName);

	NotifySetFocus *nfc = new NotifySetFocus;
	nfc->m_type = i_type;
	nfc->m_threadId = GetCurrentThreadId();
	nfc->m_hwnd = reinterpret_cast<DWORD>(i_hwnd);
	tcslcpy(nfc->m_className, className.c_str(), NUMBER_OF(nfc->m_className));
	tcslcpy(nfc->m_titleName, titleName.c_str(), NUMBER_OF(nfc->m_titleName));

	notify(nfc, sizeof(*nfc));
	delete nfc;
}


/// notify WM_SETFOCUS
static void notifySetFocus(bool i_doesForce = false)
{
	HWND hwnd = GetFocus();

	if (i_doesForce || hwnd != g.m_hwndFocus)
	{
		g.m_hwndFocus = hwnd;
		notifyName(hwnd, Notify::Type_setFocus);
	}
}


/// notify sync
static void notifySync()
{
	Notify n;
	n.m_type = Notify::Type_sync;
	notify(&n, sizeof(n));
}


/// notify DLL_THREAD_DETACH
static void notifyThreadDetach()
{
	NotifyThreadDetach ntd;
	ntd.m_type = Notify::Type_threadDetach;
	ntd.m_threadId = GetCurrentThreadId();
	notify(&ntd, sizeof(ntd));
}


/// notify WM_COMMAND, WM_SYSCOMMAND
static void notifyCommand(HWND i_hwnd, UINT i_message, WPARAM i_wParam, LPARAM i_lParam)
{
	bool m_doesNotifyCommand;

	if (g.hookDataDll == NULL)
		mapHookData();

	if (g.hookDataDll != NULL)
		m_doesNotifyCommand = g.hookDataDll->m_doesNotifyCommand;
	else
		m_doesNotifyCommand = false;

	if (m_doesNotifyCommand)
	{
		NotifyCommand ntc;
		ntc.m_type = Notify::Type_command;
		ntc.m_hwnd = reinterpret_cast<DWORD>(i_hwnd);
		ntc.m_message = i_message;
		ntc.m_wParam = i_wParam;
		ntc.m_lParam = i_lParam;
		notify(&ntc, sizeof(ntc));
	}
}


/// notify show of current window
static void notifyShow(NotifyShow::Show i_show, bool i_isMDI)
{
	NotifyShow ns;
	ns.m_type = Notify::Type_show;
	ns.m_show = i_show;
	ns.m_isMDI = i_isMDI;
	notify(&ns, sizeof(ns));
}


/// notify log
static void notifyLog(_TCHAR *i_msg)
{
	NotifyLog nl;
	nl.m_type = Notify::Type_log;
	tcslcpy(nl.m_msg, i_msg, NUMBER_OF(nl.m_msg));
	notify(&nl, sizeof(nl));
}


/// &Recenter
static void funcRecenter(HWND i_hwnd)
{
	_TCHAR buf[MAX(GANA_MAX_PATH, GANA_MAX_ATOM_LENGTH)];
	GetClassName(i_hwnd, buf, NUMBER_OF(buf));
	bool isEdit;
	if (_tcsicmp(buf, _T("Edit")) == 0)
		isEdit = true;
	else if (_tcsnicmp(buf, _T("RichEdit"), 8) == 0)
		isEdit = false;
	else
		return;	// this function only works for Edit control

	LONG_PTR style = GetWindowLongPtr(i_hwnd, GWL_STYLE);
	if (!(style & ES_MULTILINE))
		return;	// this function only works for multi line Edit control

	RECT rc;
	GetClientRect(i_hwnd, &rc);
	POINTL p = { (rc.right + rc.left) / 2, (rc.top + rc.bottom) / 2 };
	int line;
	if (isEdit)
	{
		line = SendMessage(i_hwnd, EM_CHARFROMPOS, 0, MAKELPARAM(p.x, p.y));
		line = HIWORD(line);
	}
	else
	{
		int ci = SendMessage(i_hwnd, EM_CHARFROMPOS, 0, (LPARAM)&p);
		line = SendMessage(i_hwnd, EM_EXLINEFROMCHAR, 0, ci);
	}
	int caretLine = SendMessage(i_hwnd, EM_LINEFROMCHAR, -1, 0);
	SendMessage(i_hwnd, EM_LINESCROLL, 0, caretLine - line);
}

// &SetImeConvStatus
static void funcSetImeConvStatus(HWND i_hwnd, int i_status)
{
	HIMC hIMC;
	DWORD dwConv, dwSent;

	hIMC = ImmGetContext(i_hwnd);
	if (hIMC == INVALID_HANDLE_VALUE)
		return;

	if(ImmGetOpenStatus(hIMC))
	{
		ImmGetConversionStatus(hIMC, &dwConv, &dwSent);
		//ImmSetConversionStatus(hIMC, 0, 0);
		//dwConv |= ((DWORD)i_status) & 0x000f;
		dwConv = (DWORD)i_status;
		ImmSetConversionStatus(hIMC, dwConv, dwSent);

	}
	ImmReleaseContext(i_hwnd, hIMC);
}

// &SetImeStatus
static void funcSetImeStatus(HWND i_hwnd, int i_status)
{
	HIMC hIMC;
	BOOL bSetStatus;
	BOOL bStatus;

	hIMC = ImmGetContext(i_hwnd);
	if (hIMC == INVALID_HANDLE_VALUE)
		return;

	if (i_status == 0)
		bSetStatus = FALSE;

	if (i_status == 1)
		bSetStatus = TRUE;

	if (i_status < 0)
	{
		// toggle: Get Current Status
		i_status = ImmGetOpenStatus(hIMC);

		if(i_status != 0)
		{
			bSetStatus = FALSE; // Set Close
		}
		else
		{
			bSetStatus = TRUE; // Set Open
		}
	}

	bStatus = ImmSetOpenStatus(hIMC, bSetStatus);
	ImmReleaseContext(i_hwnd, hIMC);
}


// &SetImeString
static void funcSetImeString(HWND i_hwnd, int i_size)
{
#if defined(_WINNT)
	_TCHAR *buf = new _TCHAR(i_size);
	DWORD len = 0;
	_TCHAR ImeDesc[GANA_MAX_ATOM_LENGTH];
	UINT ImeDescLen;
	DWORD error;
	DWORD denom = 1;
	HANDLE hPipe
		= CreateFile(addSessionId(HOOK_PIPE_NAME).c_str(), GENERIC_READ,
		FILE_SHARE_READ, (SECURITY_ATTRIBUTES *)NULL,
		OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, (HANDLE)NULL);
	error = ReadFile(hPipe, buf, i_size, &len, NULL);
	CloseHandle(hPipe);

	ImeDescLen = ImmGetDescription(GetKeyboardLayout(0),
		ImeDesc, sizeof(ImeDesc));
	if (_tcsncmp(ImeDesc, _T("SKKIME"), ImeDescLen) > 0)
		denom = sizeof(_TCHAR);

	HIMC hIMC = ImmGetContext(i_hwnd);
	if (hIMC == INVALID_HANDLE_VALUE)
		return;

	int status = ImmGetOpenStatus(hIMC);

#if 0
	if(isXP() == FALSE)
	{
		// Vista以降
		DWORD nSize = ImmGetCompositionString(hIMC, GCS_COMPSTR, NULL, 0);
		if(nSize)
		{
			_TCHAR *buf2 = new _TCHAR(nSize);
			ImmGetCompositionString(hIMC, GCS_COMPSTR, buf2, nSize);
			ImmSetCompositionString(hIMC, SCS_SETSTR, buf2, nSize, NULL, 0);
			ImmSetCompositionString(hIMC, SCS_SETSTR, buf, len / denom, NULL, 0);
			delete buf;
			delete buf2;
		}
	}
	else
#endif
	{
		ImmSetCompositionString(hIMC, SCS_SETSTR, buf, len / denom, NULL, 0);
		delete buf;
	}
	ImmNotifyIME(hIMC, NI_COMPOSITIONSTR, CPS_COMPLETE, 0);
	if (!status)
		ImmSetOpenStatus(hIMC, status);
	ImmReleaseContext(i_hwnd, hIMC);
#endif // _WINNT
}

/// notify lock state
/*DllExport*/ void notifyLockState(int i_cause)
{
	NotifyLockState n;

	n.m_type = Notify::Type_lockState;
	n.m_isNumLockToggled = !!(GetKeyState(VK_NUMLOCK) & 1);
	n.m_isCapsLockToggled = !!(GetKeyState(VK_CAPITAL) & 1);
	n.m_isScrollLockToggled = !!(GetKeyState(VK_SCROLL) & 1);

	if(i_cause == 8)
		g.m_isKanaLock = !!(GetKeyState(VK_KANA) & 1);

	n.m_isImeLockToggled = g.m_isImeLock;
	n.m_isKanaLockToggled = g.m_isKanaLock;
	n.m_isImeCompToggled = g.m_isImeCompositioning;
	n.m_isCandidateWindow = g.m_isCandidateWindow;
	n.m_debugParam = i_cause;
	notify(&n, sizeof(n));
}

DllExport void notifyLockState()
{
	notifyLockState(9);
}

/// hook of GetMessage
LRESULT CALLBACK getMessageProc(int i_nCode, WPARAM i_wParam, LPARAM i_lParam)
{
	if (!g.m_isMaped)
		mapHookData();

	if (i_nCode < 0 || !m_isHooked || g.hookDataDll == NULL)
		goto through;
		
	bool m_correctKanaLockHandling = FALSE;

	if(i_nCode == HC_ACTION && i_wParam == PM_REMOVE)
	{
		m_correctKanaLockHandling = g.hookDataDll->m_correctKanaLockHandling;

		MSG &msg = (*(MSG *)i_lParam);

		switch (msg.message)
		{
		case WM_COMMAND:
		case WM_SYSCOMMAND:
			notifyCommand(msg.hwnd, msg.message, msg.wParam, msg.lParam);
			break;
		case WM_KEYUP:
		case WM_KEYDOWN:
		case WM_SYSKEYDOWN:
		case WM_SYSKEYUP:
			{
				if (HIMC hIMC = ImmGetContext(msg.hwnd))
				{
					bool prev = g.m_isImeLock;
					g.m_isImeLock = !!ImmGetOpenStatus(hIMC);
					ImmReleaseContext(msg.hwnd, hIMC);
					if (prev != g.m_isImeLock) {
						notifyLockState(1);
					}
				}

				int nVirtKey = (int)msg.wParam;

				if (nVirtKey == VK_CAPITAL ||
					nVirtKey == VK_NUMLOCK ||
					nVirtKey == VK_KANA ||
					nVirtKey == VK_SCROLL)
				{
					if (m_correctKanaLockHandling) {
						notifyLockState(2);	// KL- enable時
					} else {
						notifyLockState(8);	// KL- disable時
					}
				}
				break;
			}
		case WM_IME_STARTCOMPOSITION:
			g.m_isImeCompositioning = true;
			notifyLockState(3);
			break;
		case WM_IME_ENDCOMPOSITION:
			g.m_isImeCompositioning = false;
			notifyLockState(4);
			break;
		default:
			if (msg.message == g.m_WM_NODOKA_MESSAGE)
			{
				switch (msg.wParam)
				{
				case NodokaMessage_notifyName:
					notifyName(msg.hwnd);
					break;
				case NodokaMessage_funcRecenter:
					funcRecenter(msg.hwnd);
					break;
				case NodokaMessage_funcSetImeStatus:
					funcSetImeStatus(msg.hwnd, msg.lParam);
					break;
				case NodokaMessage_funcSetImeString:
					funcSetImeString(msg.hwnd, msg.lParam);
					break;
				case NodokaMessage_funcSetImeConvStatus:
					funcSetImeConvStatus(msg.hwnd, msg.lParam);
					break;
				}
			}
			break;
		}
	}
through:
	return CallNextHookEx(m_hHookGetMessage, i_nCode, i_wParam, i_lParam);
}


/// hook of GetMessage for Sync
LRESULT CALLBACK getSyncProc(int i_nCode, WPARAM i_wParam, LPARAM i_lParam)
{
	if (!g.m_isMaped)
		mapHookData();

	if (i_nCode < 0 || !m_isHooked || g.hookDataDll == NULL)
		goto through;
		
	USHORT m_syncKey;
	bool m_syncKeyIsExtended;

	m_syncKey = g.hookDataDll->m_syncKey;
	m_syncKeyIsExtended = g.hookDataDll->m_syncKeyIsExtended;

	MSG &msg = (*(MSG *)i_lParam);

	//if(i_nCode == HC_ACTION && i_wParam == PM_REMOVE)		// CbC to AbC and &Sync TIMEOUT.
	{
		if(msg.message == WM_KEYUP)
		{
			USHORT scanCode   = (USHORT)((msg.lParam >> 16) & 0xff);
			bool isExtended = !!(msg.lParam & (1 << 24));
			if (scanCode == m_syncKey && isExtended == m_syncKeyIsExtended)
				notifySync();
		}
	}
through:
	return CallNextHookEx(m_hHookGetSync, i_nCode, i_wParam, i_lParam);
}


/// hook of SendMessage
LRESULT CALLBACK callWndProc(int i_nCode, WPARAM i_wParam, LPARAM i_lParam)
{
	if (!g.m_isMaped)
		mapHookData();

	if (i_nCode < 0 || !m_isHooked || g.hookDataDll == NULL)
		goto through;
		
	CWPSTRUCT &cwps = *(CWPSTRUCT *)i_lParam;

	bool m_correctKanaLockHandling;
	bool m_CaretBlinkTime = FALSE;
	DWORD  m_BlinkTimeOn, m_BlinkTimeOff = 0;

	if (i_nCode == HC_ACTION)
	{
		m_correctKanaLockHandling = g.hookDataDll->m_correctKanaLockHandling;
		m_CaretBlinkTime = g.hookDataDll->m_CaretBlinkTime;
		m_BlinkTimeOn = g.hookDataDll->m_BlinkTimeOn;
		m_BlinkTimeOff = g.hookDataDll->m_BlinkTimeOff;

		switch (cwps.message)
		{
		case WM_ACTIVATEAPP:
		case WM_NCACTIVATE:
			if (i_wParam) {
				notifySetFocus();
			}
			break;
		case WM_SYSCOMMAND:
			switch (cwps.wParam)
			{
			case SC_MAXIMIZE:
			case SC_MAXIMIZE2:
				updateShow(cwps.hwnd, NotifyShow::Show_Maximized);
				break;
			case SC_MINIMIZE:
			case SC_MINIMIZE2:
				updateShow(cwps.hwnd, NotifyShow::Show_Minimized);
				break;
			case SC_RESTORE:
			case SC_RESTORE2:
				updateShow(cwps.hwnd, NotifyShow::Show_Normal);
				break;
			default:
				break;
			}
			/* through below */
		case WM_COMMAND:
			notifyCommand(cwps.hwnd, cwps.message, cwps.wParam, cwps.lParam);
			break;
		case WM_SIZE:
			switch (cwps.wParam)
			{
			case SIZE_MAXIMIZED:
				updateShow(cwps.hwnd, NotifyShow::Show_Maximized);
				break;
			case SIZE_MINIMIZED:
				updateShow(cwps.hwnd, NotifyShow::Show_Minimized);
				break;
			case SIZE_RESTORED:
				updateShow(cwps.hwnd, NotifyShow::Show_Normal);
				break;
			default:
				break;
			}
			break;
		case WM_MOUSEACTIVATE:
			notifySetFocus();
			break;
		case WM_ACTIVATE:
			if (LOWORD(cwps.wParam) != WA_INACTIVE)
			{
				notifySetFocus();
				if (HIWORD(cwps.wParam)) // check minimized flag
				{
					// minimized flag on
					notifyShow(NotifyShow::Show_Minimized, false);
					//notifyShow(NotifyShow::Show_Normal, true);
				}
			}
			break;
		case WM_ENTERMENULOOP:
			g.m_isInMenu = true;
			notifySetFocus(true);
			break;
		case WM_EXITMENULOOP:
			g.m_isInMenu = false;
			notifySetFocus(true);
			break;
		case WM_SETFOCUS:
			g.m_isInMenu = false;
			notifySetFocus();
			notifyLockState(5);
			break;
		case WM_IME_STARTCOMPOSITION:
			g.m_isImeCompositioning = true;
			notifyLockState(6);
			break;
		case WM_IME_ENDCOMPOSITION:
			g.m_isImeCompositioning = false;
			notifyLockState(7);
			break;

		case WM_IME_NOTIFY:
			if (cwps.wParam == IMN_SETOPENSTATUS)
				if (HIMC hIMC = ImmGetContext(cwps.hwnd)) {
					g.m_isImeLock = !!ImmGetOpenStatus(hIMC);
					if (m_CaretBlinkTime)
						if (g.m_isImeLock) {
							SetCaretBlinkTime(m_BlinkTimeOn);
						} else {
							SetCaretBlinkTime(m_BlinkTimeOff);
						}

					ImmReleaseContext(cwps.hwnd, hIMC);
					notifyLockState(2);
				}
			if (cwps.wParam == IMN_OPENCANDIDATE)
				g.m_isCandidateWindow = true;
			if (cwps.wParam == IMN_CLOSECANDIDATE)
				g.m_isCandidateWindow = false;

			notifyLockState(5);
			break;
		}
	}
through:
	return CallNextHookEx(m_hHookCallWndProc, i_nCode, i_wParam, i_lParam);
}


/// install hooks
DllExport bool installHooks()
{
	bool iHookError = false;

	m_hHookGetMessage =	SetWindowsHookEx(WH_GETMESSAGE, (HOOKPROC)getMessageProc, g.m_hInstDLL, 0);
	if(m_hHookGetMessage == NULL)
		iHookError = true;

	m_hHookCallWndProc = SetWindowsHookEx(WH_CALLWNDPROC, (HOOKPROC)callWndProc, g.m_hInstDLL, 0);
	if(m_hHookCallWndProc == NULL)
		iHookError = true;

	m_hHookGetSync = SetWindowsHookEx(WH_GETMESSAGE, (HOOKPROC)getSyncProc, g.m_hInstDLL, 0);
	if(m_hHookGetSync == NULL)
		iHookError = true;

	m_isHooked = !iHookError;

	return iHookError;
}


/// uninstall hooks
DllExport bool uninstallHooks()
{
	m_isHooked = false;

	if (m_hHookGetMessage)
	{
		UnhookWindowsHookEx(m_hHookGetMessage);
		DisableChangeWindowMessageFilter();
	}
	m_hHookGetMessage = NULL;

	if (m_hHookCallWndProc)
		UnhookWindowsHookEx(m_hHookCallWndProc);
	m_hHookCallWndProc = NULL;

	if (m_hHookGetSync)
		UnhookWindowsHookEx(m_hHookGetSync);
	m_hHookGetSync = NULL;

	return true;
}


static LRESULT CALLBACK lowLevelMouseProc(int nCode, WPARAM wParam, LPARAM lParam)
{
	if (!g.m_isMaped)
		mapHookData();

	if (g.hookDataDll == NULL || nCode < 0)
		goto through;

	if (g.m_mouseDetour && g.m_engine) {
		unsigned int result;
		result = g.m_mouseDetour(g.m_engine, wParam, lParam);
		if (result) {
			return 1;
		}
	}

through:
	return CallNextHookEx(m_hHookMouseProc, nCode, wParam, lParam);
}


static LRESULT CALLBACK lowLevelKeyboardProc(int nCode, WPARAM wParam, LPARAM lParam)
{
	KBDLLHOOKSTRUCT *pKbll = (KBDLLHOOKSTRUCT*)lParam;

	if (!g.m_isMaped)
			mapHookData();

	if (g.hookDataDll == NULL || nCode < 0)
		goto through;

	if (g.m_keyboardDetour && g.m_engine && g.hookDataDll->m_keyboard_hook == 1) {
		unsigned int result;
		result = g.m_keyboardDetour(g.m_engine, wParam, lParam);
		if (result) {
			return 1;
		}
	}
through:
	return CallNextHookEx(m_hHookKeyboardProc, nCode, wParam, lParam);
}


/// install keyboard hook
DllExport int installKeyboardHook(INPUT_DETOUR i_keyboardDetour, Engine *i_engine, bool i_install)
{
	if (!g.m_isMaped)
		mapHookData();

	if (g.hookDataDll->m_keyboard_hook != 1)
		return 0;

	if (g.hookDataDll->m_device == true)
		return 0;

	if (i_install) {
		g.m_keyboardDetour = i_keyboardDetour;
		g.m_engine = i_engine;
		m_hHookKeyboardProc =
			SetWindowsHookEx(WH_KEYBOARD_LL, (HOOKPROC)lowLevelKeyboardProc, g.m_hInstDLL, 0);
	} else {
		if (m_hHookKeyboardProc)
			UnhookWindowsHookEx(m_hHookKeyboardProc);
		m_hHookKeyboardProc = NULL;
	}
	return 0;
}


/// install mouse hook
DllExport int installMouseHook(INPUT_DETOUR i_mouseDetour, Engine *i_engine, bool i_install)
{
	if (g.hookDataDll->m_mouse_hook != 1){
		return 0;
	}

	if (i_install) {
		if (!g.m_isMaped)
			mapHookData();

		g.m_mouseDetour = i_mouseDetour;
		g.m_engine = i_engine;
		g.hookDataDll->m_mouseHookType = MouseHookType_None;
		m_hHookMouseProc =
			SetWindowsHookEx(WH_MOUSE_LL, (HOOKPROC)lowLevelMouseProc, g.m_hInstDLL, 0);
	} else {
		if (m_hHookMouseProc)
			UnhookWindowsHookEx(m_hHookMouseProc);
		m_hHookMouseProc = NULL;
	}
	return 0;
}

