static char *tregist_id = 
	"@(#)Copyright (C) H.Shirouzu 1996-2001   tregist.cpp	Ver0.95";
/* ========================================================================
	Project  Name			: Win32 Lightweight  Class Library Test
	Module Name				: Registry Class
	Create					: 1996-06-01(Sat)
	Update					: 2001-12-06(Thu)
	Copyright				: H.Shirouzu
	Reference				: 
	======================================================================== */

#include <stdio.h>
#include "tlib.h"

TRegistry::TRegistry(LPCSTR company, LPSTR appName)
{
	openCnt = 0;
	ChangeApp(company, appName);
}

TRegistry::TRegistry(HKEY top_key)
{
	topKey = top_key;
	openCnt = 0;
}

TRegistry::~TRegistry(void)
{
	while (openCnt > 0)
		CloseKey();
}

BOOL TRegistry::ChangeApp(LPCSTR company, LPSTR appName)
{
	while (openCnt > 0)
		CloseKey();

	topKey = HKEY_CURRENT_USER;

	char	buf[100];
	wsprintf(buf, "software\\%s", company);
	if (appName != NULL && *appName)
		wsprintf(buf + strlen(buf), "\\%s", appName);

	return	CreateKey(buf);
}

void TRegistry::ChangeTopKey(HKEY top_key)
{
	while (openCnt > 0)
		CloseKey();

	topKey = top_key;
}

BOOL TRegistry::OpenKey(LPCSTR subKey, BOOL createFlg)
{
	HKEY	parentKey = (openCnt == 0 ? topKey : hKey[openCnt -1]);

	if (openCnt >= MAX_KEYARRAY)
		return	FALSE;

	DWORD	tmp;
	if ((createFlg ? ::RegCreateKeyEx(parentKey, subKey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hKey[openCnt], &tmp) : ::RegOpenKeyEx(parentKey, subKey, 0, KEY_ALL_ACCESS, &hKey[openCnt])) == ERROR_SUCCESS)
		return	openCnt++, TRUE;
	else
		return	FALSE;
}

BOOL TRegistry::CloseKey(void)
{
	if (openCnt <= 0)
		return	FALSE;

	::RegCloseKey(hKey[--openCnt]);

	return	TRUE;
}

BOOL TRegistry::GetInt(LPCSTR subKey, int *val)
{
	long	tmp_val;

	if (GetLong(subKey, &tmp_val) == FALSE)
		return	FALSE;
	*val = (int)tmp_val;
	return	TRUE;
}

BOOL TRegistry::SetInt(LPCSTR subKey, int val)
{
	return	SetLong(subKey, (long)val);
}

BOOL TRegistry::GetLong(LPCSTR subKey, long *val)
{
	DWORD	type = REG_DWORD, dw_size = sizeof(long);
	if (::RegQueryValueEx(hKey[openCnt -1], subKey, 0, &type, (BYTE *)val, &dw_size) == ERROR_SUCCESS)
		return	TRUE;

	char	buf[100];
	long	size = sizeof(buf);

	if (::RegQueryValue(hKey[openCnt -1], subKey, buf, &size) != ERROR_SUCCESS)
		return	FALSE;
	*val = atol(buf);
	return	TRUE;
}

BOOL TRegistry::SetLong(LPCSTR subKey, long val)
{
	return	::RegSetValueEx(hKey[openCnt -1], subKey, 0, REG_DWORD, (const BYTE *)&val, sizeof(val)) == ERROR_SUCCESS;
}

BOOL TRegistry::GetStr(LPCSTR subKey, LPSTR str, long size)
{
	DWORD	type = REG_SZ;
	if (::RegQueryValueEx(hKey[openCnt -1], subKey, 0, &type, (BYTE *)str, (LPDWORD)&size) == ERROR_SUCCESS)
		return	TRUE;

	return	::RegQueryValue(hKey[openCnt -1], subKey, str, &size) == ERROR_SUCCESS;
}

BOOL TRegistry::SetStr(LPCSTR subKey, LPCSTR str)
{
	return	::RegSetValueEx(hKey[openCnt -1], subKey, 0, REG_SZ, (const BYTE *)str, strlen(str) +1) == ERROR_SUCCESS;
}

BOOL TRegistry::DeleteKey(LPCSTR subKey)
{
	return	::RegDeleteKey(hKey[openCnt -1], subKey) == ERROR_SUCCESS;
}

BOOL TRegistry::DeleteValue(LPCSTR subValue)
{
	return	::RegDeleteValue(hKey[openCnt -1], subValue) == ERROR_SUCCESS;
}

BOOL TRegistry::EnumKey(DWORD cnt, LPSTR buf, DWORD size)
{
	return	::RegEnumKeyEx(hKey[openCnt -1], cnt, buf, &size, 0, 0, 0, 0) == ERROR_SUCCESS;
}

BOOL TRegistry::EnumValue(DWORD cnt, LPSTR buf, DWORD size, DWORD *type)
{
	return	::RegEnumValue(hKey[openCnt -1], cnt, buf, &size, 0, type, 0, 0) == ERROR_SUCCESS;
}

/*
	subKey 傪巜掕偟偨応崌偼 subkey 傪娷傓僉乕埲壓傪嶍彍
	subkey 偑 NULL 偺応崌丄僇儗儞僩 偺攝壓傪嶍彍
*/
BOOL TRegistry::DeleteChildTree(LPSTR subKey)
{
	char	buf[100];
	BOOL	ret = TRUE;

	if (subKey != NULL && OpenKey(subKey) != TRUE)
		return	FALSE;

	while (EnumKey(0, buf, sizeof(buf)))
	{
		if ((ret = DeleteChildTree(buf)) != TRUE)
			break;
	}
	if (subKey != NULL)
	{
		CloseKey();
		ret = DeleteKey(subKey) ? ret : FALSE;
	}
	else {
		while (EnumValue(0, buf, sizeof(buf)))
		{
			if (DeleteValue(buf) != TRUE)
			{
				ret = FALSE;
				break;
			}
		}
	}
	return	ret;
}