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diff --git a/include/svx/helperhittest3d.hxx b/include/svx/helperhittest3d.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_SVX_HELPERHITTEST3D_HXX
+#define INCLUDED_SVX_HELPERHITTEST3D_HXX
+
+#include <svx/svxdllapi.h>
+#include <vector>
+
+
+// predefines
+
+namespace basegfx {
+    class B2DPoint;
+}
+
+namespace drawinglayer::geometry {
+    class ViewInformation3D;
+}
+
+class E3dCompoundObject;
+class E3dScene;
+
+
+/** support for getting a ViewInformation3D for a given CompoudObject3D
+    with correct ObjectTransformation filled out
+
+    @param o_rViewInformation3D
+    The ViewInformation3D created which will be overwritten
+
+    @param rCandidate
+    The E3dCompoundObject for which the ViewInformation3D shall be
+    prepared
+
+    @return
+    A pointer to the found and used root scene. This is also a hint
+    if the operation succeeded or not, since when object has no root
+    scene (is not inserted to a model), an empty ViewInformation3D
+    will be used
+*/
+E3dScene* fillViewInformation3DForCompoundObject(
+    drawinglayer::geometry::ViewInformation3D& o_rViewInformation3D,
+    const E3dCompoundObject& rCandidate);
+
+/** support for getting all from a 2d position hit objects in a 3d scene
+    in a depth sorted array
+
+    @param rPoint
+    2D Point in view coordinates
+
+    @param rScene
+    The 3D Scene for HitTest
+
+    @param o_rResult
+    Output parameter which contains all hit 3D objects inside rScene. This
+    vector will be changed in any case. If it's empty, no hit exists. If it's
+    not empty, the first object is the object closest to the viewer
+
+*/
+SVXCORE_DLLPUBLIC void getAllHit3DObjectsSortedFrontToBack(
+    const basegfx::B2DPoint& rPoint,
+    const E3dScene& rScene,
+    ::std::vector< const E3dCompoundObject* >& o_rResult);
+
+/** support for checking if the single given 3d object is hit at position
+
+    @param rPoint
+    2D Point in view coordinates
+
+    @param rCandidate
+    The 3D Object which needs checking
+
+    @return
+    true if hit, false if not
+*/
+bool checkHitSingle3DObject(
+    const basegfx::B2DPoint& rPoint,
+    const E3dCompoundObject& rCandidate);
+
+
+#endif // INCLUDED_SVX_HELPERHITTEST3D_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */