【原创】注册表的读写API（windows）

来源：互联网发布：英文面试常见问题知乎编辑：程序博客网时间：2024/05/21 09:41

/// 根键值

HKEY m_base;

m_base = HKEY_CURRENT_USER;

/// 注册表位置

wxString m_path;

m_path = wxT("Software\\ThpClient\\DirPath\\CalcDllPath");

/// 注册表键值位置

std::string m_key;

m_key = "myselfValue";

/// 需要修改的键值

std::string m_value = "http://www.baidu.com";

/// 键值句柄，存储

HKEY m_hKey;

/// 错误代号

LONG LastError;

/// 打开注册表的类型

DWORD disp= REG_OPENED_EXISTING_KEY;

/// 创建注册表句柄

RegCreateKeyEx(m_base, m_path, 0, _T(""), REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &m_hKey, &disp))!=ERROR_SUCCESS)

/// 写入键值

RegSetValueExA(m_hKey, m_key.c_str(), 0, REG_SZ, (const BYTE*)m_value.c_str(),m_value.size())==ERROR_SUCCESS)

/// 读取键值

char m_readvalue[512] = {0};

DWORD m_typeword;

DWORD m_valuelength;

RegQueryValueExA(m_hKey, m_key.c_str(), 0, &m_typeword, (LPBYTE)m_readvalue,&m_valuelength);

/// 关闭注册表句柄
LastError = RegCloseKey(m_hKey);