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diff --git a/vcl/inc/helpwin.hxx b/vcl/inc/helpwin.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_VCL_INC_HELPWIN_HXX
+#define INCLUDED_VCL_INC_HELPWIN_HXX
+
+#include <vcl/toolkit/floatwin.hxx>
+#include <vcl/timer.hxx>
+
+enum class QuickHelpFlags;
+struct ImplSVHelpData;
+
+/// A tooltip: adds tips to widgets in a floating / popup window.
+class HelpTextWindow final : public FloatingWindow
+{
+private:
+    tools::Rectangle           maHelpArea; // If next Help for the same rectangle w/ same text, then keep window
+
+    tools::Rectangle           maTextRect; // For wrapped text in QuickHelp
+
+    OUString            maHelpText;
+
+    Timer               maShowTimer;
+    Timer               maHideTimer;
+
+    sal_uInt16          mnHelpWinStyle;
+    QuickHelpFlags      mnStyle;
+
+private:
+    DECL_LINK( TimerHdl, Timer*, void );
+
+    virtual void Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&) override;
+    virtual void RequestHelp( const HelpEvent& rHEvt ) override;
+    virtual void ApplySettings(vcl::RenderContext& rRenderContext) override;
+
+    virtual OUString GetText() const override;
+    void ImplShow();
+
+    virtual void        dispose() override;
+public:
+                        HelpTextWindow( vcl::Window* pParent, const OUString& rText, sal_uInt16 nHelpWinStyle, QuickHelpFlags nStyle );
+    virtual             ~HelpTextWindow() override;
+
+    const OUString&     GetHelpText() const { return maHelpText; }
+    void                SetHelpText( const OUString& rHelpText );
+    sal_uInt16          GetWinStyle() const { return mnHelpWinStyle; }
+    QuickHelpFlags      GetStyle() const { return mnStyle; }
+
+    // only remember:
+    void                SetHelpArea( const tools::Rectangle& rRect ) { maHelpArea = rRect; }
+
+    void                ShowHelp(bool bNoDelay);
+
+    Size                CalcOutSize() const;
+    const tools::Rectangle&    GetHelpArea() const { return maHelpArea; }
+
+    void ResetHideTimer();
+};
+
+void ImplShowHelpWindow( vcl::Window* pParent, sal_uInt16 nHelpWinStyle, QuickHelpFlags nStyle,
+        const OUString& rHelpText,
+        const Point& rScreenPos, const tools::Rectangle& rHelpArea );
+VCL_DLLPUBLIC void ImplDestroyHelpWindow( bool bUpdateHideTime );
+void ImplDestroyHelpWindow(ImplSVHelpData& rHelpData, bool bUpdateHideTime);
+void ImplSetHelpWindowPos( vcl::Window* pHelpWindow, sal_uInt16 nHelpWinStyle, QuickHelpFlags nStyle,
+                            const Point& rPos, const tools::Rectangle& rHelpArea );
+
+#endif // INCLUDED_VCL_INC_HELPWIN_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */