// Copyright (C) 2019 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #ifndef QWINREGISTRY_H #define QWINREGISTRY_H // // W A R N I N G // ------------- // // This file is not part of the Qt API. It exists purely as an // implementation detail. This header file may change from version to // version without notice, or even be removed. // // We mean it. // #include #include #include #include #include #include #include #include QT_BEGIN_NAMESPACE class Q_CORE_EXPORT QWinRegistryKey : public QObject { Q_DISABLE_COPY(QWinRegistryKey) Q_OBJECT public: QWinRegistryKey(QObject *parent = nullptr); explicit QWinRegistryKey(HKEY parentHandle, QStringView subKey, REGSAM permissions = KEY_READ, REGSAM access = 0, QObject *parent = nullptr); ~QWinRegistryKey(); QWinRegistryKey(QWinRegistryKey &&other) noexcept : m_key(std::exchange(other.m_key, nullptr)) {} QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_MOVE_AND_SWAP(QWinRegistryKey) void swap(QWinRegistryKey &other) noexcept { qSwap(m_key, other.m_key); } [[nodiscard]] bool isValid() const { return m_key != nullptr; } [[nodiscard]] HKEY handle() const { return m_key; } operator HKEY() const { return handle(); } void close(); QString name() const; [[nodiscard]] QVariant value(QStringView subKey) const; template [[nodiscard]] std::optional value(QStringView subKey) const { const QVariant var = value(subKey); if (var.isValid()) return qvariant_cast(var); return std::nullopt; } QString stringValue(QStringView subKey) const; #ifndef QT_NO_DEBUG_STREAM friend Q_CORE_EXPORT QDebug operator<<(QDebug dbg, const QWinRegistryKey &); #endif Q_SIGNALS: void valueChanged(); protected: void connectNotify(const QMetaMethod &signal) override; private: HKEY m_key = nullptr; QUniqueWin32NullHandle m_keyChangedEvent; }; QT_END_NAMESPACE #endif // QWINREGISTRY_H