libicsneo/platform/windows/registry.cpp

68 lines
2.0 KiB
C++

#include "platform/windows/include/registry.h"
#include <codecvt>
#include <vector>
using namespace icsneo;
static std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
Registry::Key::Key(std::wstring path, bool readwrite) {
DWORD dwDisposition;
if(readwrite)
RegCreateKeyExW(HKEY_LOCAL_MACHINE, path.c_str(), 0, nullptr, 0, KEY_QUERY_VALUE | KEY_WRITE, nullptr, &key, &dwDisposition);
else
RegOpenKeyExW(HKEY_LOCAL_MACHINE, path.c_str(), 0, KEY_READ, &key);
}
Registry::Key::~Key() {
if(IsOpen())
RegCloseKey(key);
}
bool Registry::Get(std::wstring path, std::wstring key, std::wstring& value) {
Key regKey(path);
if(!regKey.IsOpen())
return false;
// Query for the type and size of the data
DWORD type, size;
auto ret = RegQueryValueExW(regKey.GetKey(), key.c_str(), nullptr, &type, (LPBYTE)nullptr, &size);
if(ret != ERROR_SUCCESS)
return false;
// Query for the data itself
std::vector<wchar_t> data(size / 2 + 1);
DWORD bytesRead = size; // We want to read up to the size we got earlier
ret = RegQueryValueExW(regKey.GetKey(), key.c_str(), nullptr, &type, (LPBYTE)data.data(), &bytesRead);
if(ret != ERROR_SUCCESS)
return false;
value = data.data();
return true;
}
bool Registry::Get(std::string path, std::string key, std::string& value) {
std::wstring wvalue;
bool ret = Get(converter.from_bytes(path), converter.from_bytes(key), wvalue);
value = converter.to_bytes(wvalue);
return ret;
}
bool Registry::Get(std::wstring path, std::wstring key, uint32_t& value) {
Key regKey(path);
if(!regKey.IsOpen())
return false;
// Query for the data
DWORD type, size, kvalue;
auto ret = RegQueryValueExW(regKey.GetKey(), key.c_str(), nullptr, &type, (LPBYTE)&kvalue, &size);
if(ret != ERROR_SUCCESS || type != REG_DWORD)
return false;
value = kvalue;
return true;
}
bool Registry::Get(std::string path, std::string key, uint32_t& value) {
return Get(converter.from_bytes(path), converter.from_bytes(key), value);
}