mirror of
https://github.com/reactos/reactos.git
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115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/*
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* ReactOS calc
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*
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* settings.c
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*
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* Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
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#include <windows.h>
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#include <tchar.h>
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#include <assert.h>
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#define ASSERT assert
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#include "main.h"
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#include "settings.h"
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BOOL CheckResult(LONG error)
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{
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if (error != ERROR_SUCCESS) {
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PTSTR msg;
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if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
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0, error, MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT), (PTSTR)&msg, 0, NULL))
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MessageBox(NULL, msg, szTitle, MB_ICONERROR | MB_OK);
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else
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MessageBox(NULL, _T("Error"), szTitle, MB_ICONERROR | MB_OK);
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LocalFree(msg);
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return FALSE;
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}
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return TRUE;
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}
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static BOOL CreateRegistryPath(LPTSTR szRegPath, int nMaxLen)
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{
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LPTSTR pRegPath = szRegPath;
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// Initialise registry path string from application PATH and KEY resources
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int nLength = LoadString(hInst, IDS_APP_REG_PATH, szRegPath, nMaxLen);
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nLength += LoadString(hInst, IDS_APP_REG_KEY, szRegPath + nLength, nMaxLen - nLength);
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ASSERT(nLength < (nMaxLen - 1));
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szRegPath[nLength] = _T('\\');
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// walk the registry path string creating the tree if required
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while ((pRegPath = _tcschr(pRegPath, _T('\\')))) {
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LONG result;
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HKEY hKey = NULL;
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*pRegPath = _T('\0');
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// Open (or create) the key
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result = RegCreateKeyEx(HKEY_CURRENT_USER, szRegPath, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, NULL);
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if (!CheckResult(result)) return FALSE;
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RegCloseKey(hKey);
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*pRegPath = _T('\\');
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pRegPath = pRegPath + 1;
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}
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szRegPath[nLength] = _T('\0');
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return TRUE;
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}
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void LoadSettings(void)
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{
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TCHAR szRegPath[MAX_LOADSTRING];
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HKEY hKey;
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DWORD dwSize;
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LONG result;
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if (!CreateRegistryPath(szRegPath, MAX_LOADSTRING)) return;
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// Open the key
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result = RegOpenKeyEx(HKEY_CURRENT_USER, szRegPath, 0, KEY_READ, &hKey);
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if (!CheckResult(result)) return;
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// Read the settings
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dwSize = sizeof(CALC_TYPES);
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result = RegQueryValueEx(hKey, _T("Preferences"), NULL, NULL, (LPBYTE)&CalcType, &dwSize);
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// Close the key
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RegCloseKey(hKey);
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}
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void SaveSettings(void)
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{
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TCHAR szRegPath[MAX_LOADSTRING];
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HKEY hKey = NULL;
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LONG result;
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if (!CreateRegistryPath(szRegPath, MAX_LOADSTRING)) return;
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// Open the key
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result = RegOpenKeyEx(HKEY_CURRENT_USER, szRegPath, 0, KEY_WRITE, &hKey);
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if (!CheckResult(result)) return;
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// Save the settings
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result = RegSetValueEx(hKey, _T("Preferences"), 0, REG_DWORD, (LPBYTE)&CalcType, sizeof(CALC_TYPES));
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if (!CheckResult(result)) goto abort;
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abort:
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// Close the key
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RegCloseKey(hKey);
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}
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