KEY.CPP
资源名称:MSDN_VC98.zip [点击查看]
上传用户:bangxh
上传日期:2007-01-31
资源大小:42235k
文件大小:2k
源码类别:
Windows编程
开发平台:
Visual C++
- // key.cpp : implementation file
- //
- // This is a part of the Microsoft Foundation Classes C++ library.
- // Copyright (C) 1992-1998 Microsoft Corporation
- // All rights reserved.
- //
- // This source code is only intended as a supplement to the
- // Microsoft Foundation Classes Reference and related
- // electronic documentation provided with the library.
- // See these sources for detailed information regarding the
- // Microsoft Foundation Classes product.
- #include "stdafx.h"
- #include "key.h"
- #include <winreg.h>
- #ifdef _DEBUG
- #undef THIS_FILE
- static char BASED_CODE THIS_FILE[] = __FILE__;
- #endif
- /////////////////////////////////////////////////////////////////////////////
- // CKey
- void CKey::Close()
- {
- if (m_hKey != NULL)
- {
- LONG lRes = RegCloseKey(m_hKey);
- ASSERT(lRes == ERROR_SUCCESS);
- m_hKey = NULL;
- }
- }
- BOOL CKey::Create(HKEY hKey, LPCTSTR lpszKeyName)
- {
- ASSERT(hKey != NULL);
- return (RegCreateKey(hKey, lpszKeyName, &m_hKey) == ERROR_SUCCESS);
- }
- BOOL CKey::Open(HKEY hKey, LPCTSTR lpszKeyName)
- {
- ASSERT(hKey != NULL);
- return (RegOpenKey(hKey, lpszKeyName, &m_hKey) == ERROR_SUCCESS);
- }
- BOOL CKey::SetStringValue(LPCTSTR lpszValue, LPCTSTR lpszValueName)
- {
- ASSERT(m_hKey != NULL);
- return (RegSetValueEx(m_hKey, lpszValueName, NULL, REG_SZ,
- (BYTE * const)lpszValue, (lstrlen(lpszValue)+1)*sizeof(TCHAR)) == ERROR_SUCCESS);
- }
- BOOL CKey::GetStringValue(CString& str, LPCTSTR lpszValueName)
- {
- ASSERT(m_hKey != NULL);
- str.Empty();
- DWORD dw = 0;
- DWORD dwType = 0;
- LONG lRes = RegQueryValueEx(m_hKey, (LPTSTR)lpszValueName, NULL, &dwType,
- NULL, &dw);
- if (lRes == ERROR_SUCCESS)
- {
- ASSERT(dwType == REG_SZ);
- LPTSTR lpsz = str.GetBufferSetLength(dw);
- lRes = RegQueryValueEx(m_hKey, (LPTSTR)lpszValueName, NULL, &dwType, (BYTE*)lpsz, &dw);
- ASSERT(lRes == ERROR_SUCCESS);
- str.ReleaseBuffer();
- return TRUE;
- }
- return FALSE;
- }