void DVLib::RegistryDeleteKey(HKEY root, const std::wstring& key, DWORD ulFlags)
{
DWORD namesize, subkeys, maxkeyname;
if (ERROR_SUCCESS != ::RegDeleteKey(root, key.c_str()))
{
HKEY reg = NULL;
CHECK_WIN32_DWORD(::RegOpenKeyEx(root, key.c_str(), 0, ulFlags | KEY_READ, & reg),
L"Error opening '" << HKEY2wstring(root) << L"\\" << key << L"'");
auto_hkey reg_ptr(reg);
// query subkey information
CHECK_WIN32_DWORD(::RegQueryInfoKey(reg, NULL, NULL, NULL, & subkeys, & maxkeyname, NULL, NULL, NULL, NULL, NULL, NULL),
L"Error quering '" << HKEY2wstring(root) << L"\\" << key << L"' for subkeys");
// walk through all subkeys, and recursively delete
wchar_t name[MAX_PATH] = {0};
namesize = MAX_PATH;
while (ERROR_SUCCESS == ::RegEnumKeyEx(reg, 0, name, & namesize, NULL, NULL, NULL, NULL))
{
RegistryDeleteKey(root, key + L"\\" + name, ulFlags);
namesize = MAX_PATH;
}
CHECK_WIN32_DWORD(::RegDeleteKey(root, key.c_str()),
L"Error deleting '" << HKEY2wstring(root) << L"\\" << key << L"'");
}
}
std::wstring DVLib::RegistryGetStringValue(HKEY root, const std::wstring& key, const std::wstring& name, DWORD ulFlags)
{
HKEY reg = NULL;
CHECK_WIN32_DWORD(::RegOpenKeyEx(root, key.c_str(), 0, ulFlags | KEY_READ, & reg),
L"Error opening " << HKEY2wstring(root) << L"\\" << key);
auto_hkey reg_ptr(reg);
DWORD dwSize = 0;
DWORD dwType = 0;
CHECK_WIN32_DWORD(::RegQueryValueEx(reg, name.c_str(), 0, & dwType, NULL, & dwSize),
L"Error quering '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"' value size:");
CHECK_BOOL(dwType == REG_SZ || dwType == REG_EXPAND_SZ,
L"Error quering '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"' value, unexpected type " << dwType);
std::wstring value;
if (dwSize > 0)
{
value.resize(dwSize / sizeof(WCHAR));
CHECK_WIN32_DWORD(::RegQueryValueEx(reg, name.c_str(), 0, & dwType, reinterpret_cast<LPBYTE>(& * value.begin()), & dwSize),
L"Error quering '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"' value data");
value.resize((dwSize - 1) / sizeof(WCHAR));
}
return value;
}
void DVLib::RegistryDeleteValue(HKEY root, const std::wstring& key, const std::wstring& name, DWORD ulFlags)
{
HKEY reg = NULL;
CHECK_WIN32_DWORD(::RegOpenKeyEx(root, key.c_str(), 0, ulFlags | KEY_WRITE, & reg),
L"Error opening '" << HKEY2wstring(root) << L"\\" << key << L"'");
auto_hkey reg_ptr(reg);
CHECK_WIN32_DWORD(::RegDeleteValue(reg, name.c_str()),
L"Error deleting '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"'");
}
i2c_ctrl::reg_ptr & i2c_ctrl::regs(std::size_t idx)
{
if (register_blocks[idx].get()==nullptr)
{
register_blocks[idx] = reg_ptr( physical_addresses[idx]
, register_block_size
);
}
return register_blocks[idx];
}
std::vector<std::wstring> DVLib::RegistryGetMultiStringValue(HKEY root, const std::wstring& key, const std::wstring& name, DWORD ulFlags)
{
HKEY reg = NULL;
CHECK_WIN32_DWORD(::RegOpenKeyEx(root, key.c_str(), 0, ulFlags | KEY_READ, & reg),
L"Error opening " << HKEY2wstring(root) << L"\\" << key);
auto_hkey reg_ptr(reg);
DWORD dwSize = 0;
DWORD dwType = 0;
CHECK_WIN32_DWORD(::RegQueryValueEx(reg, name.c_str(), 0, & dwType, NULL, & dwSize),
L"Error quering '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"' value size");
CHECK_BOOL(dwType == REG_MULTI_SZ,
L"Error quering '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"' value, unexpected type " << dwType);
std::vector<std::wstring> result;
std::vector<wchar_t> value;
if (dwSize > 0)
{
value.resize(dwSize / sizeof(WCHAR));
CHECK_WIN32_DWORD(::RegQueryValueEx(reg, name.c_str(), 0, & dwType, reinterpret_cast<LPBYTE>(& * value.begin()), & dwSize),
L"Error quering '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"' value data");
value.resize((dwSize - 1) / sizeof(WCHAR));
std::vector<wchar_t>::iterator l = value.begin();
std::vector<wchar_t>::iterator r = value.begin();
while(r != value.end())
{
if (* r == 0)
{
if (l == r)
result.push_back(L"");
else
result.push_back(std::wstring(l, r));
l = r + 1;
}
r++;
}
}
return result;
}
DWORD DVLib::RegistryGetValueType(HKEY root, const std::wstring& key, const std::wstring& name, DWORD ulFlags)
{
HKEY reg = NULL;
CHECK_WIN32_DWORD(::RegOpenKeyEx(root, key.c_str(), 0, ulFlags | KEY_READ, & reg),
L"Error opening " << HKEY2wstring(root) << L"\\" << key);
auto_hkey reg_ptr(reg);
DWORD dwSize = 0;
DWORD dwType = 0;
CHECK_WIN32_DWORD(::RegQueryValueEx(reg, name.c_str(), 0, & dwType, NULL, & dwSize),
L"Error quering '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"'");
return dwType;
}
bool DVLib::RegistryValueExists(HKEY root, const std::wstring& key, const std::wstring& name, DWORD ulFlags)
{
HKEY reg = NULL;
DWORD dwErr = ::RegOpenKeyEx(root, key.c_str(), 0, ulFlags | KEY_READ, & reg);
auto_hkey reg_ptr(reg);
bool result = true;
switch(dwErr)
{
case ERROR_SUCCESS:
break;
case ERROR_FILE_NOT_FOUND:
result = false;
break;
default:
CHECK_WIN32_DWORD(dwErr,
L"Error checking whether '" << HKEY2wstring(root) << L"\\" << key << L"' exists");
break;
}
if (result)
{
DWORD dwSize = 0;
DWORD dwType = 0;
dwErr = ::RegQueryValueEx(reg, name.c_str(), 0, & dwType, NULL, & dwSize);
switch(dwErr)
{
case ERROR_SUCCESS:
case ERROR_INSUFFICIENT_BUFFER:
break;
case ERROR_FILE_NOT_FOUND:
result = false;
break;
default:
CHECK_WIN32_DWORD(dwErr,
L"Error checking whether '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"' exists");
break;
}
}
return result;
}
bool DVLib::RegistryKeyExists(HKEY root, const std::wstring& key, DWORD ulFlags)
{
HKEY reg = NULL;
DWORD dwErr = ::RegOpenKeyEx(root, key.c_str(), 0, ulFlags | KEY_READ, & reg);
auto_hkey reg_ptr(reg);
bool result = true;
switch(dwErr)
{
case ERROR_SUCCESS:
break;
case ERROR_FILE_NOT_FOUND:
result = false;
break;
default:
CHECK_WIN32_DWORD(dwErr,
L"Error checking whether '" << HKEY2wstring(root) << L"\\" << key << L"' exists");
break;
}
return result;
}
DWORD DVLib::RegistryGetDWORDValue(HKEY root, const std::wstring& key, const std::wstring& name, DWORD ulFlags)
{
HKEY reg = NULL;
CHECK_WIN32_DWORD(::RegOpenKeyEx(root, key.c_str(), 0, ulFlags | KEY_READ, & reg),
L"Error opening '" << HKEY2wstring(root) << L"\\" << key << L"'");
auto_hkey reg_ptr(reg);
DWORD dwSize = 0;
DWORD dwType = 0;
CHECK_WIN32_DWORD(::RegQueryValueEx(reg, name.c_str(), 0, & dwType, NULL, & dwSize),
L"Error quering '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"' size");
CHECK_BOOL(dwType == REG_DWORD && dwSize == sizeof(DWORD),
L"Error quering '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"', unexpected type");
DWORD value = 0;
CHECK_WIN32_DWORD(::RegQueryValueEx(reg, name.c_str(), 0, & dwType, reinterpret_cast<LPBYTE>(& value), & dwSize),
L"Error quering '" << HKEY2wstring(root) << L"\\" << key << L"\\" << name << L"' value");
return value;
}
