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diff --git a/src/corelib/platform/windows/qfactorycacheregistration_p.h b/src/corelib/platform/windows/qfactorycacheregistration_p.h
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+++ b/src/corelib/platform/windows/qfactorycacheregistration_p.h
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+// Copyright (C) 2022 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 QFACTORYCACHEREGISTRATION_P_H
+#define QFACTORYCACHEREGISTRATION_P_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/qglobal.h>
+
+#if !defined(QT_BOOTSTRAPPED) && QT_CONFIG(cpp_winrt)
+# define QT_USE_FACTORY_CACHE_REGISTRATION
+#endif
+
+#ifdef QT_USE_FACTORY_CACHE_REGISTRATION
+
+#include "qt_winrtbase_p.h"
+
+QT_BEGIN_NAMESPACE
+
+namespace detail {
+
+class QWinRTFactoryCacheRegistration
+{
+public:
+ Q_CORE_EXPORT explicit QWinRTFactoryCacheRegistration(QFunctionPointer clearFunction);
+ Q_CORE_EXPORT ~QWinRTFactoryCacheRegistration();
+ Q_CORE_EXPORT static void clearAllCaches();
+
+ Q_DISABLE_COPY_MOVE(QWinRTFactoryCacheRegistration)
+private:
+ QWinRTFactoryCacheRegistration **m_prevNext = nullptr;
+ QWinRTFactoryCacheRegistration *m_next = nullptr;
+ QFunctionPointer m_clearFunction;
+};
+
+inline QWinRTFactoryCacheRegistration reg([]() noexcept { winrt::clear_factory_cache(); });
+}
+
+QT_END_NAMESPACE
+
+#endif
+#endif // QFACTORYCACHEREGISTRATION_P_H