Revision control
++ // 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
++ // Qt-Security score:significant reason:trivial-impl-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 <QtCore/qstring.h>
++ #include <QtCore/qstringview.h>
++ #include <QtCore/qt_windows.h>
++ #include <QtCore/qvariant.h>
++ #include <QtCore/qobject.h>
++ #include <QtCore/private/quniquehandle_types_p.h>
++
++ QT_BEGIN_NAMESPACE
++
++ class Q_CORE_EXPORT QWinRegistryKey
++ {
++ public:
++ QWinRegistryKey() = default;
++ explicit QWinRegistryKey(HKEY parentHandle, const wchar_t *subKey,
++ REGSAM permissions = KEY_READ, REGSAM access = 0);
++ explicit QWinRegistryKey(HKEY parentHandle, const QString &subKey,
++ REGSAM permissions = KEY_READ, REGSAM access = 0);
++ ~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
++ {
++ qt_ptr_swap(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(const wchar_t *subKey) const;
++ [[nodiscard]] QVariant value(const QString &subKey) const;
++
++ template<typename T>
++ [[nodiscard]] std::optional<T> value(const wchar_t *subKey) const
++ {
++ return to_optional<T>(value(subKey));
++ }
++
++ template<typename T>
++ [[nodiscard]] std::optional<T> value(const QString &subKey) const
++ {
++ return to_optional<T>(value(subKey));
++ }
++
++ QString stringValue(const wchar_t *subKey) const;
++ QString stringValue(const QString &subKey) const;
++
++ #ifndef QT_NO_DEBUG_STREAM
++ friend Q_CORE_EXPORT QDebug operator<<(QDebug dbg, const QWinRegistryKey &);
++ #endif
++
++ private:
++ template<typename T>
++ static std::optional<T> to_optional(QVariant v)
++ {
++ if (v.isValid())
++ return qvariant_cast<T>(std::move(v));
++ return std::nullopt;
++ }
++
++ HKEY m_key = nullptr;
++ };
++
++ Q_DECLARE_SHARED(QWinRegistryKey)
++
++ class Q_CORE_EXPORT QWinRegistryNotifier : public QObject
++ {
++ Q_OBJECT
++ Q_DISABLE_COPY(QWinRegistryNotifier)
++
++ public:
++ explicit QWinRegistryNotifier(QWinRegistryKey &&key, QObject *parent = nullptr);
++ explicit QWinRegistryNotifier(HKEY parentHandle, const wchar_t *subKey,
++ QObject *parent = nullptr);
++ explicit QWinRegistryNotifier(HKEY parentHandle, const QString &subKey,
++ QObject *parent = nullptr);
++
++ [[nodiscard]] bool isValid() const { return m_key.isValid(); }
++ [[nodiscard]] const QWinRegistryKey &key() const { return m_key; }
++
++ Q_SIGNALS:
++ void valueChanged();
++
++ private:
++ QWinRegistryKey m_key;
++ QUniqueWin32NullHandle m_keyChangedEvent;
++ };
++
++ QT_END_NAMESPACE
++
++ #endif // QWINREGISTRY_H