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diff --git a/src/VBox/Main/include/HostVideoInputDeviceImpl.h b/src/VBox/Main/include/HostVideoInputDeviceImpl.h
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+++ b/src/VBox/Main/include/HostVideoInputDeviceImpl.h
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+/* $Id: HostVideoInputDeviceImpl.h $ */
+/** @file
+ * A host video capture device description.
+ */
+
+/*
+ * Copyright (C) 2013-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#ifndef MAIN_INCLUDED_HostVideoInputDeviceImpl_h
+#define MAIN_INCLUDED_HostVideoInputDeviceImpl_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include "HostVideoInputDeviceWrap.h"
+
+#include <list>
+
+class HostVideoInputDevice;
+
+typedef std::list<ComObjPtr<HostVideoInputDevice> > HostVideoInputDeviceList;
+
+class ATL_NO_VTABLE HostVideoInputDevice :
+    public HostVideoInputDeviceWrap
+{
+public:
+
+    DECLARE_COMMON_CLASS_METHODS(HostVideoInputDevice)
+
+    HRESULT FinalConstruct();
+    void FinalRelease();
+
+    /* Public initializer/uninitializer for internal purposes only. */
+    HRESULT init(const com::Utf8Str &name, const com::Utf8Str &path, const com::Utf8Str &alias);
+    void uninit();
+
+    static HRESULT queryHostDevices(VirtualBox *pVirtualBox, HostVideoInputDeviceList *pList);
+
+private:
+
+    // wrapped IHostVideoInputDevice properties
+    virtual HRESULT getName(com::Utf8Str &aName) { aName = m.name; return S_OK; }
+    virtual HRESULT getPath(com::Utf8Str &aPath) { aPath = m.path; return S_OK; }
+    virtual HRESULT getAlias(com::Utf8Str &aAlias) { aAlias = m.alias; return S_OK; }
+
+    /* Data. */
+    struct Data
+    {
+        Data()
+        {
+        }
+
+        com::Utf8Str name;
+        com::Utf8Str path;
+        com::Utf8Str alias;
+    };
+
+    Data m;
+};
+
+#endif /* !MAIN_INCLUDED_HostVideoInputDeviceImpl_h */
+
+/* vi: set tabstop=4 shiftwidth=4 expandtab: */