#include <windows.h>


BOOL GetRegVal(char *subKey, char *name, void *p, int len)
{
	HKEY hKey;
	DWORD valType, valSize = (DWORD)len;
	LONG r;

	if (! RegOpenKeyEx(HKEY_CURRENT_USER, subKey, 0, KEY_ALL_ACCESS,
			&hKey)) {
		r = RegQueryValueEx(hKey, name, NULL, &valType, (LPBYTE)p, &valSize);
		RegCloseKey(hKey);
		if (r)
			return FALSE;
		else
			return TRUE;
	} else
		return FALSE;
}


void SetRegVal(char *subKey, char *name, void *p, int len)
{
	HKEY hKey;
	DWORD disposition;
	
	RegCreateKeyEx(HKEY_CURRENT_USER, subKey, 0, NULL,
			REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hKey,
			&disposition);
	RegSetValueEx(hKey, name, 0, REG_BINARY, (CONST BYTE*)p, (DWORD)len);
	RegCloseKey(hKey);
}


BOOL GetPlacement(char *subKey, RECT *rect)
{
	if (GetRegVal(subKey, "Placement", rect, sizeof(RECT)))
		return TRUE;
	else
		return FALSE;
}


void SavePlacement(HWND hwnd, char *subKey)
{
	RECT rect;
	
	GetWindowRect(hwnd, &rect);
	SetRegVal(subKey, "Placement", &rect, sizeof(RECT));
}


BOOL SaveKey(char *subKey, char *fileName)
{
	HKEY hKey;

	if (! RegOpenKeyEx(HKEY_CURRENT_USER, subKey, 0, KEY_ALL_ACCESS,
			&hKey)) {
		if (RegSaveKey(hKey, (LPCTSTR)fileName, NULL)) {
			RegCloseKey(hKey);
			return FALSE;
		}
		RegCloseKey(hKey);
		return TRUE;
	} else
		return FALSE;
}


BOOL RestoreKey(char *subKey, char *fileName)
{
	HKEY hKey;

	if (! RegOpenKeyEx(HKEY_CURRENT_USER, subKey, 0, KEY_ALL_ACCESS,
			&hKey)) {
		if (RegRestoreKey(hKey, (LPCTSTR)fileName, 0)) {
			RegCloseKey(hKey);
			return FALSE;
		}
		RegCloseKey(hKey);
		return TRUE;
	} else
		return FALSE;
}

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