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WinUtil.hpp
/*
* Open Chinese Convert
*
* Copyright 2010-2026 Carbo Kuo and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#if defined(_WIN32) || defined(_WIN64)
#ifndef NOMINMAX
#define NOMINMAX
#endif
#include <Windows.h>
#include <string>
namespace opencc {
namespace internal {
inline std::string Utf8FromWide(const std::wstring& wide) {
if (wide.empty()) {
return "";
}
const int required =
WideCharToMultiByte(CP_UTF8, 0, wide.c_str(), -1, nullptr, 0, nullptr,
nullptr);
if (required <= 1) {
return "";
}
std::string utf8(static_cast<size_t>(required), '\0');
WideCharToMultiByte(CP_UTF8, 0, wide.c_str(), -1, utf8.data(), required,
nullptr, nullptr);
utf8.resize(static_cast<size_t>(required - 1));
return utf8;
}
inline std::wstring WideFromUtf8(const std::string& utf8) {
if (utf8.empty()) {
return L"";
}
const int required =
MultiByteToWideChar(CP_UTF8, 0, utf8.c_str(), -1, nullptr, 0);
if (required <= 1) {
return L"";
}
std::wstring wide(static_cast<size_t>(required), L'\0');
MultiByteToWideChar(CP_UTF8, 0, utf8.c_str(), -1, wide.data(), required);
wide.resize(static_cast<size_t>(required - 1));
return wide;
}
} // namespace internal
} // namespace opencc
#endif // defined(_WIN32) || defined(_WIN64)