1 files changed, 33 insertions, 0 deletions
diff --git a/src/multimedia/windows/qcomptr_p.h b/src/multimedia/windows/qcomptr_p.h
new file mode 100644
index 000000000..befc97f11
--- /dev/null
+++ b/src/multimedia/windows/qcomptr_p.h
@@ -0,0 +1,33 @@
+// Copyright (C) 2021 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 QCOMPTR_P_H
+#define QCOMPTR_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 <qt_windows.h>
+#include <wrl/client.h>
+
+using Microsoft::WRL::ComPtr;
+
+template<typename T, typename... Args>
+ComPtr<T> makeComObject(Args &&...args)
+{
+    ComPtr<T> p;
+    // Don't use Attach because of MINGW64 bug
+    // #892 Microsoft::WRL::ComPtr::Attach leaks references
+    *p.GetAddressOf() = new T(std::forward<Args>(args)...);
+    return p;
+}
+
+#endif