Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

18 files changed, 2336 insertions, 0 deletions

diff --git a/vcl/inc/win/DWriteTextRenderer.hxx b/vcl/inc/win/DWriteTextRenderer.hxx
new file mode 100644
index 000000000..9011a951d
--- /dev/null
+++ b/vcl/inc/win/DWriteTextRenderer.hxx
@@ -0,0 +1,101 @@
+/* -*- 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_WIN_DWRITERENDERER_HXX
+#define INCLUDED_VCL_INC_WIN_DWRITERENDERER_HXX
+
+#include <usp10.h>
+#include <d2d1.h>
+#include <dwrite.h>
+
+#include <win/winlayout.hxx>
+
+enum class D2DTextAntiAliasMode
+{
+    Default,
+    Aliased,
+    AntiAliased,
+    ClearType,
+};
+
+class D2DWriteTextOutRenderer : public TextOutRenderer
+{
+public:
+    explicit D2DWriteTextOutRenderer();
+    virtual ~D2DWriteTextOutRenderer() override;
+
+    bool operator ()(GenericSalLayout const &rLayout,
+        SalGraphics &rGraphics,
+        HDC hDC) override;
+
+    HRESULT BindDC(HDC hDC, tools::Rectangle const & rRect = tools::Rectangle(0, 0, 1, 1));
+
+    bool BindFont(HDC hDC) /*override*/;
+    bool ReleaseFont() /*override*/;
+
+    std::vector<tools::Rectangle>  GetGlyphInkBoxes(uint16_t const * pGid, uint16_t const * pGidEnd) const /*override*/;
+    ID2D1RenderTarget * GetRenderTarget() const { return mpRT; }
+    IDWriteFontFace   * GetFontFace() const { return mpFontFace; }
+    float               GetEmHeight() const { return mlfEmHeight; }
+
+    HRESULT CreateRenderTarget();
+
+    bool Ready() const;
+
+    void applyTextAntiAliasMode();
+    void changeTextAntiAliasMode(D2DTextAntiAliasMode eMode);
+
+private:
+    // This is a singleton object disable copy ctor and assignment operator
+    D2DWriteTextOutRenderer(const D2DWriteTextOutRenderer &) = delete;
+    D2DWriteTextOutRenderer & operator = (const D2DWriteTextOutRenderer &) = delete;
+
+    bool GetDWriteFaceFromHDC(HDC hDC, IDWriteFontFace ** ppFontFace, float * lfSize) const;
+    bool performRender(GenericSalLayout const &rLayout, SalGraphics &rGraphics, HDC hDC, bool& bRetry);
+
+    ID2D1Factory        * mpD2DFactory;
+    IDWriteFactory      * mpDWriteFactory;
+    IDWriteGdiInterop   * mpGdiInterop;
+    ID2D1DCRenderTarget * mpRT;
+    const D2D1_RENDER_TARGET_PROPERTIES mRTProps;
+
+    IDWriteFontFace * mpFontFace;
+    float             mlfEmHeight;
+    HDC               mhDC;
+    D2DTextAntiAliasMode meTextAntiAliasMode;
+};
+
+/**
+ * Sets and unsets the needed DirectWrite transform to support the font's horizontal scaling and
+ * rotation.
+ */
+class WinFontTransformGuard
+{
+public:
+    WinFontTransformGuard(ID2D1RenderTarget* pRenderTarget, float fHScale, const GenericSalLayout& rLayout, const D2D1_POINT_2F& rBaseline);
+    ~WinFontTransformGuard();
+
+private:
+    ID2D1RenderTarget* mpRenderTarget;
+    D2D1::Matrix3x2F maTransform;
+};
+
+#endif // INCLUDED_VCL_INC_WIN_DWRITERENDERER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/salbmp.h b/vcl/inc/win/salbmp.h
new file mode 100644
index 000000000..d6acd14e8
--- /dev/null
+++ b/vcl/inc/win/salbmp.h
@@ -0,0 +1,115 @@
+/* -*- 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_WIN_SALBMP_H
+#define INCLUDED_VCL_INC_WIN_SALBMP_H
+
+#include <tools/gen.hxx>
+#include <win/wincomp.hxx>
+#include <salbmp.hxx>
+#include <basegfx/utils/systemdependentdata.hxx>
+#include <memory>
+
+
+struct  BitmapBuffer;
+class   BitmapColor;
+class   BitmapPalette;
+class   SalGraphics;
+namespace Gdiplus { class Bitmap; }
+
+class WinSalBitmap final: public SalBitmap, public basegfx::SystemDependentDataHolder
+{
+private:
+    Size                maSize;
+    HGLOBAL             mhDIB;
+    HBITMAP             mhDDB;
+
+    sal_uInt16          mnBitCount;
+
+    Gdiplus::Bitmap*    ImplCreateGdiPlusBitmap(const WinSalBitmap& rAlphaSource);
+    Gdiplus::Bitmap*    ImplCreateGdiPlusBitmap();
+
+public:
+
+    HGLOBAL             ImplGethDIB() const { return mhDIB; }
+    HBITMAP             ImplGethDDB() const { return mhDDB; }
+
+    std::shared_ptr< Gdiplus::Bitmap > ImplGetGdiPlusBitmap(const WinSalBitmap* pAlphaSource = nullptr) const;
+
+    static HGLOBAL      ImplCreateDIB( const Size& rSize, sal_uInt16 nBitCount, const BitmapPalette& rPal );
+    static HANDLE       ImplCopyDIBOrDDB( HANDLE hHdl, bool bDIB );
+    static sal_uInt16   ImplGetDIBColorCount( HGLOBAL hDIB );
+    static void         ImplDecodeRLEBuffer( const BYTE* pSrcBuf, BYTE* pDstBuf,
+                                             const Size& rSizePixel, bool bRLE4 );
+
+public:
+
+                        WinSalBitmap();
+    virtual             ~WinSalBitmap() override;
+
+public:
+
+    bool                        Create( HANDLE hBitmap, bool bDIB, bool bCopyHandle );
+    virtual bool                Create( const Size& rSize, sal_uInt16 nBitCount, const BitmapPalette& rPal ) override;
+    virtual bool                Create( const SalBitmap& rSalBmpImpl ) override;
+    virtual bool                Create( const SalBitmap& rSalBmpImpl, SalGraphics* pGraphics ) override;
+    virtual bool                Create( const SalBitmap& rSalBmpImpl, sal_uInt16 nNewBitCount ) override;
+    virtual bool                Create( const css::uno::Reference< css::rendering::XBitmapCanvas >& rBitmapCanvas,
+                                           Size& rSize,
+                                           bool bMask = false ) override;
+
+    virtual void                Destroy() override;
+
+    virtual Size                GetSize() const override { return maSize; }
+    virtual sal_uInt16          GetBitCount() const override { return mnBitCount; }
+
+    virtual BitmapBuffer*       AcquireBuffer( BitmapAccessMode nMode ) override;
+    virtual void                ReleaseBuffer( BitmapBuffer* pBuffer, BitmapAccessMode nMode ) override;
+    virtual bool                GetSystemData( BitmapSystemData& rData ) override;
+
+    virtual bool                ScalingSupported() const override;
+    virtual bool                Scale( const double& rScaleX, const double& rScaleY, BmpScaleFlag nScaleFlag ) override;
+    virtual bool                Replace( const Color& rSearchColor, const Color& rReplaceColor, sal_uInt8 nTol ) override;
+
+    // exclusive management op's for SystemDependentData at WinSalBitmap
+    template<class T>
+    std::shared_ptr<T> getSystemDependentData() const
+    {
+        return std::static_pointer_cast<T>(basegfx::SystemDependentDataHolder::getSystemDependentData(typeid(T).hash_code()));
+    }
+
+    template<class T, class... Args>
+    std::shared_ptr<T> addOrReplaceSystemDependentData(basegfx::SystemDependentDataManager& manager, Args&&... args) const
+    {
+        std::shared_ptr<T> r = std::make_shared<T>(manager, std::forward<Args>(args)...);
+
+        // tdf#129845 only add to buffer if a relevant buffer time is estimated
+        if(r->calculateCombinedHoldCyclesInSeconds() > 0)
+        {
+            basegfx::SystemDependentData_SharedPtr r2(r);
+            const_cast< WinSalBitmap* >(this)->basegfx::SystemDependentDataHolder::addOrReplaceSystemDependentData(r2);
+        }
+
+        return r;
+    }
+};
+
+#endif // INCLUDED_VCL_INC_WIN_SALBMP_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/saldata.hxx b/vcl/inc/win/saldata.hxx
new file mode 100644
index 000000000..eadc7ade8
--- /dev/null
+++ b/vcl/inc/win/saldata.hxx
@@ -0,0 +1,305 @@
+/* -*- 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_WIN_SALDATA_HXX
+#define INCLUDED_VCL_INC_WIN_SALDATA_HXX
+
+#include <config_features.h>
+
+#include <memory>
+#include <osl/module.h>
+
+#include <svdata.hxx>
+#include <salwtype.hxx>
+
+#include <win/wincomp.hxx>
+
+#include <set>
+#include <map>
+
+class AutoTimer;
+class WinSalInstance;
+class WinSalObject;
+class WinSalFrame;
+class WinSalVirtualDevice;
+class WinSalPrinter;
+namespace vcl { class Font; }
+struct GlobalWinGlyphCache;
+struct HDCCache;
+struct TempFontItem;
+class TextOutRenderer;
+class OpenGLControlsCache;
+#if HAVE_FEATURE_SKIA
+class SkiaControlsCache;
+#endif
+
+#define MAX_STOCKPEN            4
+#define MAX_STOCKBRUSH          4
+#define SAL_CLIPRECT_COUNT      16
+
+struct SalIcon
+{
+    int     nId;
+    HICON   hIcon;
+    HICON   hSmallIcon;
+    SalIcon *pNext;
+};
+
+class SalData
+{
+public:
+    SalData();
+    ~SalData();
+
+    // native widget framework
+    static void initNWF();
+    static void deInitNWF();
+
+    // fill maVKMap;
+    void initKeyCodeMap();
+
+    // checks if the menuhandle was created by VCL
+    bool    IsKnownMenuHandle( HMENU hMenu );
+
+    bool                    mbResourcesAlreadyFreed;
+
+public:
+    HINSTANCE               mhInst;                 // default instance handle
+    int                     mnCmdShow;              // default frame show style
+    HPALETTE                mhDitherPal;            // dither palette
+    HGLOBAL                 mhDitherDIB;            // dither memory handle
+    BYTE*                   mpDitherDIB;            // dither memory
+    BYTE*                   mpDitherDIBData;        // beginning of DIB data
+    long*                   mpDitherDiff;           // Dither mapping table
+    BYTE*                   mpDitherLow;            // Dither mapping table
+    BYTE*                   mpDitherHigh;           // Dither mapping table
+    HHOOK                   mhSalObjMsgHook;        // hook to get interesting msg for SalObject
+    HWND                    mhWantLeaveMsg;         // window handle, that want a MOUSELEAVE message
+    AutoTimer*              mpMouseLeaveTimer;      // Timer for MouseLeave Test
+    WinSalInstance*         mpInstance;
+    WinSalFrame*            mpFirstFrame;           // pointer of first frame
+    WinSalObject*           mpFirstObject;          // pointer of first object window
+    WinSalVirtualDevice*    mpFirstVD;              // first VirDev
+    WinSalPrinter*          mpFirstPrinter;         // first printing printer
+    HDCCache*               mpHDCCache;             // Cache for three DC's
+    HBITMAP                 mh50Bmp;                // 50% Bitmap
+    HBRUSH                  mh50Brush;              // 50% Brush
+    COLORREF                maStockPenColorAry[MAX_STOCKPEN];
+    COLORREF                maStockBrushColorAry[MAX_STOCKBRUSH];
+    HPEN                    mhStockPenAry[MAX_STOCKPEN];
+    HBRUSH                  mhStockBrushAry[MAX_STOCKBRUSH];
+    sal_uInt16              mnStockPenCount;        // count of static pens
+    sal_uInt16              mnStockBrushCount;      // count of static brushes
+    WPARAM                  mnSalObjWantKeyEvt;     // KeyEvent that should be processed by SalObj-Hook
+    BYTE                    mnCacheDCInUse;         // count of CacheDC in use
+    bool                    mbObjClassInit;         // is SALOBJECTCLASS initialised
+    bool                    mbInPalChange;          // is in WM_QUERYNEWPALETTE
+    DWORD                   mnAppThreadId;          // Id from Application-Thread
+    BOOL                    mbScrSvrEnabled;        // ScreenSaver enabled
+    SalIcon*                mpFirstIcon;            // icon cache, points to first icon, NULL if none
+    TempFontItem*           mpSharedTempFontItem;   // LibreOffice shared fonts
+    TempFontItem*           mpOtherTempFontItem;    // other temporary fonts (embedded?)
+    bool                    mbThemeChanged;         // true if visual theme was changed: throw away theme handles
+    bool                    mbThemeMenuSupport;
+
+    // for GdiPlus GdiplusStartup/GdiplusShutdown
+    ULONG_PTR               gdiplusToken;
+
+    std::set< HMENU >       mhMenuSet;              // keeps track of menu handles created by VCL, used by IsKnownMenuHandle()
+    std::map< UINT,sal_uInt16 > maVKMap;      // map some dynamic VK_* entries
+
+    std::unique_ptr<TextOutRenderer> m_pD2DWriteTextOutRenderer;
+    // tdf#107205 need 2 instances because D2DWrite can't rotate text
+    std::unique_ptr<TextOutRenderer> m_pExTextOutRenderer;
+    std::unique_ptr<GlobalWinGlyphCache> m_pGlobalWinGlyphCache;
+    std::unique_ptr<OpenGLControlsCache> m_pOpenGLControlsCache;
+#if HAVE_FEATURE_SKIA
+    std::unique_ptr<SkiaControlsCache> m_pSkiaControlsCache;
+#endif
+};
+
+inline void SetSalData( SalData* pData ) { ImplGetSVData()->mpSalData = pData; }
+inline SalData* GetSalData() { return ImplGetSVData()->mpSalData; }
+
+struct SalShlData
+{
+    HINSTANCE               mhInst;                 // Instance of SAL-DLL
+    UINT                    mnWheelScrollLines;     // WheelScrollLines
+    UINT                    mnWheelScrollChars;     // WheelScrollChars
+};
+
+extern SalShlData aSalShlData;
+
+#define CACHESIZE_HDC       3
+#define CACHED_HDC_1        0
+#define CACHED_HDC_2        1
+#define CACHED_HDC_DRAW     2
+#define CACHED_HDC_DEFEXT   64
+
+struct HDCCache
+{
+    HDC         mhDC;
+    HPALETTE    mhDefPal;
+    HBITMAP     mhDefBmp;
+    HBITMAP     mhSelBmp;
+    HBITMAP     mhActBmp;
+};
+
+void ImplClearHDCCache( SalData* pData );
+HDC ImplGetCachedDC( sal_uLong nID, HBITMAP hBmp = nullptr );
+void ImplReleaseCachedDC( sal_uLong nID );
+
+void ImplReleaseTempFonts(SalData&, bool bAll);
+
+HCURSOR ImplLoadSalCursor( int nId );
+HBITMAP ImplLoadSalBitmap( int nId );
+bool ImplLoadSalIcon( int nId, HICON& rIcon, HICON& rSmallIcon );
+
+void ImplInitSalGDI();
+void ImplFreeSalGDI();
+
+void ImplSalYieldMutexAcquireWithWait( sal_uInt32 nCount = 1 );
+bool ImplSalYieldMutexTryToAcquire();
+void ImplSalYieldMutexRelease();
+
+LRESULT CALLBACK SalFrameWndProcW( HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam );
+
+void SalTestMouseLeave();
+
+bool ImplHandleSalObjKeyMsg( HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam );
+bool ImplHandleSalObjSysCharMsg( HWND hWnd, WPARAM wParam, LPARAM lParam );
+bool ImplHandleGlobalMsg( HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam, LRESULT& rlResult );
+
+WinSalObject* ImplFindSalObject( HWND hWndChild );
+bool ImplSalPreDispatchMsg( const MSG* pMsg );
+void ImplSalPostDispatchMsg( const MSG* pMsg );
+
+void ImplSalLogFontToFontW( HDC hDC, const LOGFONTW& rLogFont, vcl::Font& rFont );
+
+rtl_TextEncoding ImplSalGetSystemEncoding();
+OUString ImplSalGetUniString(const char* pStr, sal_Int32 nLen = -1);
+int ImplSalWICompareAscii( const wchar_t* pStr1, const char* pStr2 );
+
+#define SAL_FRAME_WNDEXTRA          sizeof( DWORD )
+#define SAL_FRAME_THIS              GWLP_USERDATA
+#define SAL_FRAME_CLASSNAMEW        L"SALFRAME"
+#define SAL_SUBFRAME_CLASSNAMEW     L"SALSUBFRAME"
+#define SAL_TMPSUBFRAME_CLASSNAMEW  L"SALTMPSUBFRAME"
+#define SAL_OBJECT_WNDEXTRA         sizeof( DWORD )
+#define SAL_OBJECT_THIS             GWLP_USERDATA
+#define SAL_OBJECT_CLASSNAMEW       L"SALOBJECT"
+#define SAL_OBJECT_CHILDCLASSNAMEW  L"SALOBJECTCHILD"
+#define SAL_COM_CLASSNAMEW          L"SALCOMWND"
+
+#define SAL_MOUSELEAVE_TIMEOUT      300
+
+// wParam == bWait; lParam == 0
+#define SAL_MSG_THREADYIELD         (WM_USER+111)
+// wParam == 0; lParam == nMS
+#define SAL_MSG_STARTTIMER          (WM_USER+113)
+// wParam == nFrameStyle; lParam == pParent; lResult == pFrame
+#define SAL_MSG_CREATEFRAME         (WM_USER+114)
+// wParam == 0; lParam == 0
+#define SAL_MSG_DESTROYFRAME        (WM_USER+115)
+// wParam == 0; lParam == pParent; lResult == pObject
+#define SAL_MSG_CREATEOBJECT        (WM_USER+116)
+// wParam == 0; lParam == pObject;
+#define SAL_MSG_DESTROYOBJECT       (WM_USER+117)
+// wParam == hWnd; lParam == 0; lResult == hDC
+#define SAL_MSG_GETCACHEDDC         (WM_USER+120)
+// wParam == hWnd; lParam == 0
+#define SAL_MSG_RELEASEDC           (WM_USER+121)
+// wParam == newParentHwnd; lParam == oldHwnd; lResult == newhWnd
+#define SAL_MSG_RECREATEHWND        (WM_USER+122)
+// wParam == newParentHwnd; lParam == oldHwnd; lResult == newhWnd
+#define SAL_MSG_RECREATECHILDHWND   (WM_USER+123)
+// wParam == 0; lParam == HWND;
+#define SAL_MSG_DESTROYHWND         (WM_USER+124)
+
+// wParam == 0; lParam == pData
+#define SAL_MSG_USEREVENT           (WM_USER+130)
+// wParam == 0; lParam == MousePosition relative to upper left of screen
+#define SAL_MSG_MOUSELEAVE          (WM_USER+131)
+// NULL-Message, should not be processed
+#define SAL_MSG_DUMMY               (WM_USER+132)
+// Used for SETFOCUS and KILLFOCUS
+// wParam == 0; lParam == 0
+#define SAL_MSG_POSTFOCUS           (WM_USER+133)
+// wParam == wParam; lParam == lParam
+#define SAL_MSG_POSTQUERYNEWPAL     (WM_USER+134)
+// wParam == wParam; lParam == lParam
+#define SAL_MSG_POSTPALCHANGED      (WM_USER+135)
+// wParam == wParam; lParam == lParam
+#define SAL_MSG_POSTMOVE            (WM_USER+136)
+// wParam == wParam; lParam == lParam
+#define SAL_MSG_POSTCALLSIZE        (WM_USER+137)
+// wParam == pRECT; lParam == 0
+#define SAL_MSG_POSTPAINT           (WM_USER+138)
+// wParam == 0; lParam == pFrame; lResult 0
+#define SAL_MSG_FORCEPALETTE        (WM_USER+139)
+// wParam == 0; lParam == 0
+#define SAL_MSG_CAPTUREMOUSE        (WM_USER+140)
+// wParam == 0; lParam == 0
+#define SAL_MSG_RELEASEMOUSE        (WM_USER+141)
+// wParam == nFlags; lParam == 0
+#define SAL_MSG_TOTOP               (WM_USER+142)
+// wParam == bVisible; lParam == 0
+#define SAL_MSG_SHOW                (WM_USER+143)
+// wParam == 0; lParam == SalInputContext
+#define SAL_MSG_SETINPUTCONTEXT     (WM_USER+144)
+// wParam == nFlags; lParam == 0
+#define SAL_MSG_ENDEXTTEXTINPUT     (WM_USER+145)
+
+// SysChild-ToTop; wParam = 0; lParam = 0
+#define SALOBJ_MSG_TOTOP            (WM_USER+160)
+// Used for SETFOCUS and KILLFOCUS
+// POSTFOCUS-Message; wParam == bFocus; lParam == 0
+#define SALOBJ_MSG_POSTFOCUS        (WM_USER+161)
+
+// Call the Timer's callback from the main thread
+// wParam = 1 == run when yield is idle instead of direct
+#define SAL_MSG_TIMER_CALLBACK      (WM_USER+162)
+// Stop the timer from the main thread; wParam = 0, lParam = 0
+#define SAL_MSG_STOPTIMER           (WM_USER+163)
+// Start a real timer while GUI is blocked by native dialog
+#define SAL_MSG_FORCE_REAL_TIMER    (WM_USER+164)
+
+inline void SetWindowPtr( HWND hWnd, WinSalFrame* pThis )
+{
+    SetWindowLongPtrW( hWnd, SAL_FRAME_THIS, reinterpret_cast<LONG_PTR>(pThis) );
+}
+
+inline WinSalFrame* GetWindowPtr( HWND hWnd )
+{
+    return reinterpret_cast<WinSalFrame*>(GetWindowLongPtrW( hWnd, SAL_FRAME_THIS ));
+}
+
+inline void SetSalObjWindowPtr( HWND hWnd, WinSalObject* pThis )
+{
+    SetWindowLongPtrW( hWnd, SAL_OBJECT_THIS, reinterpret_cast<LONG_PTR>(pThis) );
+}
+
+inline WinSalObject* GetSalObjWindowPtr( HWND hWnd )
+{
+    return reinterpret_cast<WinSalObject*>(GetWindowLongPtrW( hWnd, SAL_OBJECT_THIS ));
+}
+
+#endif // INCLUDED_VCL_INC_WIN_SALDATA_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/salframe.h b/vcl/inc/win/salframe.h
new file mode 100644
index 000000000..f0c758806
--- /dev/null
+++ b/vcl/inc/win/salframe.h
@@ -0,0 +1,154 @@
+/* -*- 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_WIN_SALFRAME_H
+#define INCLUDED_VCL_INC_WIN_SALFRAME_H
+
+#include <vcl/sysdata.hxx>
+#include <salframe.hxx>
+#include <svsys.h>
+
+class WinSalGraphics;
+
+
+class WinSalFrame final: public SalFrame
+{
+public:
+    HWND                    mhWnd;                  // Window handle
+    HCURSOR                 mhCursor;               // cursor handle
+    HIMC                    mhDefIMEContext;        // default IME-Context
+    WinSalGraphics*         mpLocalGraphics;        // current main thread frame graphics
+    WinSalGraphics*         mpThreadGraphics;       // current frame graphics for other threads (DCX_CACHE)
+    WinSalFrame*            mpNextFrame;            // pointer to next frame
+    HMENU                   mSelectedhMenu;         // the menu where highlighting is currently going on
+    HMENU                   mLastActivatedhMenu;    // the menu that was most recently opened
+    SystemEnvData           maSysData;              // system data
+    SalFrameState           maState = {};           // frame state
+    int                     mnShowState;            // show state
+    long                    mnWidth;                // client width in pixeln
+    long                    mnHeight;               // client height in pixeln
+    int                     mnMinWidth;             // min. client width in pixeln
+    int                     mnMinHeight;            // min. client height in pixeln
+    int                     mnMaxWidth;             // max. client width in pixeln
+    int                     mnMaxHeight;            // max. client height in pixeln
+    RECT                    maFullScreenRect;       // fullscreen rect
+    int                     mnFullScreenShowState;  // fullscreen restore show state
+    bool                    mbFullScreenCaption;    // WS_CAPTION reset in full screen mode.
+    UINT                    mnInputLang;            // current Input Language
+    UINT                    mnInputCodePage;        // current Input CodePage
+    SalFrameStyleFlags      mnStyle;                // style
+    bool                    mbGraphics;             // is Graphics used
+    bool                    mbCaption;              // has window a caption
+    bool                    mbBorder;               // has window a border
+    bool                    mbFixBorder;            // has window a fixed border
+    bool                    mbSizeBorder;           // has window a sizeable border
+    bool                    mbNoIcon;               // is a window without an icon
+    bool                    mbFloatWin;             // is a FloatingWindow
+    bool                    mbFullScreen;           // TRUE: in full screen mode
+    bool                    mbPresentation;         // TRUE: Presentation Mode running
+    bool                    mbInShow;               // inside a show call
+    bool                    mbRestoreMaximize;      // Restore-Maximize
+    bool                    mbInMoveMsg;            // Move-Message is being processed
+    bool                    mbInSizeMsg;            // Size-Message is being processed
+    bool                    mbFullScreenToolWin;    // WS_EX_TOOLWINDOW reset in FullScreenMode
+    bool                    mbDefPos;               // default-position
+    bool                    mbOverwriteState;       // TRUE: possible to change WindowState
+    bool                    mbIME;                  // TRUE: We are in IME Mode
+    bool                    mbHandleIME;            // TRUE: We are handling the IME-Messages
+    bool                    mbSpezIME;              // TRUE: special IME
+    bool                    mbAtCursorIME;          // TRUE: We are only handling some IME-Messages
+    bool                    mbCandidateMode;        // TRUE: We are in Candidate-Mode
+    static bool             mbInReparent;           // TRUE: ignore focus lost and gain due to reparenting
+
+    RGNDATA*                mpClipRgnData;
+    RECT*                   mpNextClipRect;
+    bool                    mbFirstClipRect;
+    sal_Int32               mnDisplay;              // Display used for Fullscreen, 0 is primary monitor
+    bool                    mbPropertiesStored;     // has values stored in the window property store
+
+    void updateScreenNumber();
+
+private:
+    void ImplSetParentFrame( HWND hNewParentWnd, bool bAsChild );
+    bool InitFrameGraphicsDC( WinSalGraphics *pGraphics, HDC hDC, HWND hWnd );
+    bool ReleaseFrameGraphicsDC( WinSalGraphics* pGraphics );
+
+public:
+    WinSalFrame();
+    virtual ~WinSalFrame() override;
+
+    virtual SalGraphics*        AcquireGraphics() override;
+    virtual void                ReleaseGraphics( SalGraphics* pGraphics ) override;
+    virtual bool                PostEvent(std::unique_ptr<ImplSVEvent> pData) override;
+    virtual void                SetTitle( const OUString& rTitle ) override;
+    virtual void                SetIcon( sal_uInt16 nIcon ) override;
+    virtual void                SetMenu( SalMenu* pSalMenu ) override;
+    virtual void                DrawMenuBar() override;
+    virtual void                SetExtendedFrameStyle( SalExtStyle nExtStyle ) override;
+    virtual void                Show( bool bVisible, bool bNoActivate = false ) override;
+    virtual void                SetMinClientSize( long nWidth, long nHeight ) override;
+    virtual void                SetMaxClientSize( long nWidth, long nHeight ) override;
+    virtual void                SetPosSize( long nX, long nY, long nWidth, long nHeight, sal_uInt16 nFlags ) override;
+    virtual void                GetClientSize( long& rWidth, long& rHeight ) override;
+    virtual void                GetWorkArea( tools::Rectangle& rRect ) override;
+    virtual SalFrame*           GetParent() const override;
+    virtual void                SetWindowState( const SalFrameState* pState ) override;
+    virtual bool                GetWindowState( SalFrameState* pState ) override;
+    virtual void                ShowFullScreen( bool bFullScreen, sal_Int32 nDisplay ) override;
+    virtual void                StartPresentation( bool bStart ) override;
+    virtual void                SetAlwaysOnTop( bool bOnTop ) override;
+    virtual void                ToTop( SalFrameToTop nFlags ) override;
+    virtual void                SetPointer( PointerStyle ePointerStyle ) override;
+    virtual void                CaptureMouse( bool bMouse ) override;
+    virtual void                SetPointerPos( long nX, long nY ) override;
+    using SalFrame::Flush;
+    virtual void                Flush() override;
+    virtual void                SetInputContext( SalInputContext* pContext ) override;
+    virtual void                EndExtTextInput( EndExtTextInputFlags nFlags ) override;
+    virtual OUString            GetKeyName( sal_uInt16 nKeyCode ) override;
+    virtual bool                MapUnicodeToKeyCode( sal_Unicode aUnicode, LanguageType aLangType, vcl::KeyCode& rKeyCode ) override;
+    virtual LanguageType        GetInputLanguage() override;
+    virtual void                UpdateSettings( AllSettings& rSettings ) override;
+    virtual void                Beep() override;
+    virtual const SystemEnvData*    GetSystemData() const override;
+    virtual SalPointerState     GetPointerState() override;
+    virtual KeyIndicatorState   GetIndicatorState() override;
+    virtual void                SimulateKeyPress( sal_uInt16 nKeyCode ) override;
+    virtual void                SetParent( SalFrame* pNewParent ) override;
+    virtual bool                SetPluginParent( SystemParentData* pNewParent ) override;
+    virtual void                SetScreenNumber( unsigned int ) override;
+    virtual void                SetApplicationID( const OUString &rApplicationID ) override;
+    virtual void                ResetClipRegion() override;
+    virtual void                BeginSetClipRegion( sal_uInt32 nRects ) override;
+    virtual void                UnionClipRegion( long nX, long nY, long nWidth, long nHeight ) override;
+    virtual void                EndSetClipRegion() override;
+};
+
+void ImplSalGetWorkArea( HWND hWnd, RECT *pRect, const RECT *pParentRect );
+
+// get foreign key names
+namespace vcl_sal {
+    OUString getKeysReplacementName(
+        OUString const & pLang,
+        LONG nSymbol );
+}
+
+#endif // INCLUDED_VCL_INC_WIN_SALFRAME_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/salgdi.h b/vcl/inc/win/salgdi.h
new file mode 100644
index 000000000..83c6b6f2d
--- /dev/null
+++ b/vcl/inc/win/salgdi.h
@@ -0,0 +1,429 @@
+/* -*- 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_WIN_SALGDI_H
+#define INCLUDED_VCL_INC_WIN_SALGDI_H
+
+#include <sallayout.hxx>
+#include <salgeom.hxx>
+#include <salgdi.hxx>
+#include <fontinstance.hxx>
+#include <fontattributes.hxx>
+#include <PhysicalFontFace.hxx>
+#include <impfont.hxx>
+#include <vcl/fontcapabilities.hxx>
+#include <vcl/fontcharmap.hxx>
+
+#include <memory>
+#include <unordered_set>
+
+#ifndef INCLUDED_PRE_POST_WIN_H
+#define INCLUDED_PRE_POST_WIN_H
+#  include <prewin.h>
+#  include <postwin.h>
+#endif
+
+#include <hb-ot.h>
+#include <dwrite.h>
+
+class FontSelectPattern;
+class WinFontInstance;
+class ImplFontAttrCache;
+class PhysicalFontCollection;
+class SalGraphicsImpl;
+class WinSalGraphicsImplBase;
+class ImplFontMetricData;
+
+#define RGB_TO_PALRGB(nRGB)         ((nRGB)|0x02000000)
+#define PALRGB_TO_RGB(nPalRGB)      ((nPalRGB)&0x00ffffff)
+
+// win32 specific physically available font face
+class WinFontFace : public PhysicalFontFace
+{
+public:
+    explicit                WinFontFace( const FontAttributes&,
+                                BYTE eWinCharSet,
+                                BYTE nPitchAndFamily  );
+    virtual                 ~WinFontFace() override;
+
+    virtual rtl::Reference<LogicalFontInstance> CreateFontInstance( const FontSelectPattern& ) const override;
+    virtual sal_IntPtr      GetFontId() const override;
+    void                    SetFontId( sal_IntPtr nId ) { mnId = nId; }
+    void                    UpdateFromHDC( HDC ) const;
+
+    bool                    HasChar( sal_uInt32 cChar ) const;
+
+    BYTE                    GetCharSet() const          { return meWinCharSet; }
+    BYTE                    GetPitchAndFamily() const   { return mnPitchAndFamily; }
+
+    FontCharMapRef          GetFontCharMap() const;
+    bool GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const;
+
+private:
+    sal_IntPtr              mnId;
+
+    // some members that are initialized lazily when the font gets selected into a HDC
+    mutable bool                    mbFontCapabilitiesRead;
+    mutable FontCharMapRef          mxUnicodeMap;
+    mutable vcl::FontCapabilities   maFontCapabilities;
+
+    BYTE                    meWinCharSet;
+    BYTE                    mnPitchAndFamily;
+    bool                    mbAliasSymbolsHigh;
+    bool                    mbAliasSymbolsLow;
+
+    void                    ReadCmapTable( HDC ) const;
+    void                    GetFontCapabilities( HDC hDC ) const;
+};
+
+/** Class that creates (and destroys) a compatible Device Context.
+
+This is to be used for GDI drawing into a DIB that we later use for a different
+drawing method, such as a texture for OpenGL drawing or surface for Skia drawing.
+*/
+class CompatibleDC
+{
+protected:
+    /// The compatible DC that we create for our purposes.
+    HDC mhCompatibleDC;
+
+    /// DIBSection that we use for the GDI drawing, and later obtain.
+    HBITMAP mhBitmap;
+
+    /// Return the previous bitmap to undo the SelectObject.
+    HBITMAP mhOrigBitmap;
+
+    /// DIBSection data.
+    sal_uInt32 *mpData;
+
+    /// Mapping between the GDI position and OpenGL, to use for OpenGL drawing.
+    SalTwoRect maRects;
+
+    /// The SalGraphicsImpl where we will draw.  If null, we ignore the drawing, it means it happened directly to the DC...
+    WinSalGraphicsImplBase *mpImpl;
+
+    // If 'disable' is true, this class is a simple wrapper for drawing directly. Subclasses should use true.
+    CompatibleDC(SalGraphics &rGraphics, int x, int y, int width, int height, bool disable=true);
+
+public:
+    static std::unique_ptr< CompatibleDC > create(SalGraphics &rGraphics, int x, int y, int width, int height);
+
+    virtual ~CompatibleDC();
+
+    HDC getCompatibleHDC() { return mhCompatibleDC; }
+
+    SalTwoRect getTwoRect() const { return maRects; }
+
+    long getBitmapWidth() const { return maRects.mnSrcWidth; }
+    long getBitmapHeight() const { return maRects.mnSrcHeight; }
+
+    /// Reset the DC with the defined color.
+    void fill(sal_uInt32 color);
+
+    /// Base texture class (OpenGL and Skia will provide their implementations).
+    struct Texture;
+
+    /// Obtain the texture in format for WinSalGraphicsImplBase::DrawTextMask().
+    virtual std::unique_ptr<Texture> getAsMaskTexture() const { abort(); };
+};
+
+struct CompatibleDC::Texture
+{
+    virtual ~Texture() {};
+    virtual bool isValid() const = 0;
+    virtual int GetWidth() const = 0;
+    virtual int GetHeight() const = 0;
+};
+
+class WinSalGraphics : public SalGraphics
+{
+    friend class WinSalGraphicsImpl;
+    friend class WinOpenGLSalGraphicsImpl;
+    friend class ScopedFont;
+
+protected:
+    std::unique_ptr<SalGraphicsImpl> mpImpl;
+
+private:
+    HDC                     mhLocalDC;              // HDC
+    bool                    mbPrinter : 1;          // is Printer
+    bool                    mbVirDev : 1;           // is VirDev
+    bool                    mbWindow : 1;           // is Window
+    bool                    mbScreen : 1;           // is Screen compatible
+    HWND                    mhWnd;              // Window-Handle, when Window-Graphics
+
+    rtl::Reference<WinFontInstance>
+                            mpWinFontEntry[ MAX_FALLBACK ]; // pointer to the most recent font instance
+    HRGN                    mhRegion;           // vcl::Region Handle
+    HPEN                    mhDefPen;           // DefaultPen
+    HBRUSH                  mhDefBrush;         // DefaultBrush
+    HFONT                   mhDefFont;          // DefaultFont
+    HPALETTE                mhDefPal;           // DefaultPalette
+    COLORREF                mnTextColor;        // TextColor
+    RGNDATA*                mpClipRgnData;      // ClipRegion-Data
+    RGNDATA*                mpStdClipRgnData;   // Cache Standard-ClipRegion-Data
+    int                     mnPenWidth;         // line width
+
+    bool CacheGlyphs(const GenericSalLayout& rLayout);
+    bool DrawCachedGlyphs(const GenericSalLayout& rLayout);
+
+public:
+    HFONT ImplDoSetFont(FontSelectPattern const & i_rFont, const PhysicalFontFace * i_pFontFace, HFONT& o_rOldFont);
+
+    HDC getHDC() const { return mhLocalDC; }
+    void setHDC(HDC aNew) { mhLocalDC = aNew; }
+
+    HPALETTE getDefPal() const;
+    void setDefPal(HPALETTE hDefPal);
+
+    HRGN getRegion() const;
+
+    void InitGraphics();
+    void DeInitGraphics();
+
+    enum Type
+    {
+        PRINTER,
+        VIRTUAL_DEVICE,
+        WINDOW,
+        SCREEN
+    };
+
+public:
+
+    HWND gethWnd();
+
+
+public:
+    explicit WinSalGraphics(WinSalGraphics::Type eType, bool bScreen, HWND hWnd,
+                            SalGeometryProvider *pProvider);
+    virtual ~WinSalGraphics() override;
+
+    SalGraphicsImpl* GetImpl() const override;
+    bool isPrinter() const;
+    bool isVirtualDevice() const;
+    bool isWindow() const;
+    bool isScreen() const;
+
+    void setHWND(HWND hWnd);
+
+protected:
+    virtual bool        setClipRegion( const vcl::Region& ) override;
+    // draw --> LineColor and FillColor and RasterOp and ClipRegion
+    virtual void        drawPixel( long nX, long nY ) override;
+    virtual void        drawPixel( long nX, long nY, Color nColor ) override;
+    virtual void        drawLine( long nX1, long nY1, long nX2, long nY2 ) override;
+    virtual void        drawRect( long nX, long nY, long nWidth, long nHeight ) override;
+    virtual void        drawPolyLine( sal_uInt32 nPoints, const SalPoint* pPtAry ) override;
+    virtual void        drawPolygon( sal_uInt32 nPoints, const SalPoint* pPtAry ) override;
+    virtual void        drawPolyPolygon( sal_uInt32 nPoly, const sal_uInt32* pPoints, PCONSTSALPOINT* pPtAry ) override;
+    virtual bool        drawPolyPolygon(
+        const basegfx::B2DHomMatrix& rObjectToDevice,
+        const basegfx::B2DPolyPolygon&,
+        double fTransparency) override;
+    virtual bool        drawPolyLine(
+        const basegfx::B2DHomMatrix& rObjectToDevice,
+        const basegfx::B2DPolygon&,
+        double fTransparency,
+        double fLineWidth,
+        const std::vector< double >* pStroke, // MM01
+        basegfx::B2DLineJoin,
+        css::drawing::LineCap,
+        double fMiterMinimumAngle,
+        bool bPixelSnapHairline) override;
+    virtual bool        drawPolyLineBezier( sal_uInt32 nPoints, const SalPoint* pPtAry, const PolyFlags* pFlgAry ) override;
+    virtual bool        drawPolygonBezier( sal_uInt32 nPoints, const SalPoint* pPtAry, const PolyFlags* pFlgAry ) override;
+    virtual bool        drawPolyPolygonBezier( sal_uInt32 nPoly, const sal_uInt32* pPoints, const SalPoint* const* pPtAry, const PolyFlags* const* pFlgAry ) override;
+    virtual bool        drawGradient( const tools::PolyPolygon&, const Gradient& ) override { return false; };
+
+    // CopyArea --> No RasterOp, but ClipRegion
+    virtual void        copyArea( long nDestX, long nDestY, long nSrcX, long nSrcY, long nSrcWidth,
+                                  long nSrcHeight, bool bWindowInvalidate ) override;
+
+    // CopyBits and DrawBitmap --> RasterOp and ClipRegion
+    // CopyBits() --> pSrcGraphics == NULL, then CopyBits on same Graphics
+    virtual void        copyBits( const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics ) override;
+    virtual void        drawBitmap( const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap ) override;
+    virtual void        drawBitmap( const SalTwoRect& rPosAry,
+                                    const SalBitmap& rSalBitmap,
+                                    const SalBitmap& rTransparentBitmap ) override;
+    virtual void        drawMask( const SalTwoRect& rPosAry,
+                                  const SalBitmap& rSalBitmap,
+                                  Color nMaskColor ) override;
+
+    virtual std::shared_ptr<SalBitmap> getBitmap( long nX, long nY, long nWidth, long nHeight ) override;
+    virtual Color       getPixel( long nX, long nY ) override;
+
+    // invert --> ClipRegion (only Windows or VirDevs)
+    virtual void        invert( long nX, long nY, long nWidth, long nHeight, SalInvert nFlags) override;
+    virtual void        invert( sal_uInt32 nPoints, const SalPoint* pPtAry, SalInvert nFlags ) override;
+
+    virtual bool        drawEPS( long nX, long nY, long nWidth, long nHeight, void* pPtr, sal_uInt32 nSize ) override;
+
+    // native widget rendering methods that require mirroring
+protected:
+    virtual bool        isNativeControlSupported( ControlType nType, ControlPart nPart ) override;
+    virtual bool        hitTestNativeControl( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion,
+                                              const Point& aPos, bool& rIsInside ) override;
+    virtual bool        drawNativeControl( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion,
+                                           ControlState nState, const ImplControlValue& aValue,
+                                           const OUString& aCaption, const Color& rBackgroundColor ) override;
+    virtual bool        getNativeControlRegion( ControlType nType, ControlPart nPart, const tools::Rectangle& rControlRegion, ControlState nState,
+                                                const ImplControlValue& aValue, const OUString& aCaption,
+                                                tools::Rectangle &rNativeBoundingRegion, tools::Rectangle &rNativeContentRegion ) override;
+
+public:
+    virtual bool        blendBitmap( const SalTwoRect&,
+                                     const SalBitmap& rBitmap ) override;
+
+    virtual bool        blendAlphaBitmap( const SalTwoRect&,
+                                          const SalBitmap& rSrcBitmap,
+                                          const SalBitmap& rMaskBitmap,
+                                          const SalBitmap& rAlphaBitmap ) override;
+
+    virtual bool        drawAlphaBitmap( const SalTwoRect&,
+                                         const SalBitmap& rSourceBitmap,
+                                         const SalBitmap& rAlphaBitmap ) override;
+    virtual bool       drawTransformedBitmap(
+                           const basegfx::B2DPoint& rNull,
+                           const basegfx::B2DPoint& rX,
+                           const basegfx::B2DPoint& rY,
+                           const SalBitmap& rSourceBitmap,
+                           const SalBitmap* pAlphaBitmap) override;
+    virtual bool       drawAlphaRect( long nX, long nY, long nWidth, long nHeight, sal_uInt8 nTransparency ) override;
+
+private:
+    // local helpers
+
+    void                    DrawTextLayout(const GenericSalLayout&, HDC, bool bUseDWrite);
+
+public:
+    // public SalGraphics methods, the interface to the independent vcl part
+
+    // get device resolution
+    virtual void            GetResolution( sal_Int32& rDPIX, sal_Int32& rDPIY ) override;
+    // get the depth of the device
+    virtual sal_uInt16          GetBitCount() const override;
+    // get the width of the device
+    virtual long            GetGraphicsWidth() const override;
+
+    // set the clip region to empty
+    virtual void            ResetClipRegion() override;
+
+    // set the line color to transparent (= don't draw lines)
+    virtual void            SetLineColor() override;
+    // set the line color to a specific color
+    virtual void            SetLineColor( Color nColor ) override;
+    // set the fill color to transparent (= don't fill)
+    virtual void            SetFillColor() override;
+    // set the fill color to a specific color, shapes will be
+    // filled accordingly
+    virtual void            SetFillColor( Color nColor ) override;
+    // enable/disable XOR drawing
+    virtual void            SetXORMode( bool bSet, bool ) override;
+    // set line color for raster operations
+    virtual void            SetROPLineColor( SalROPColor nROPColor ) override;
+    // set fill color for raster operations
+    virtual void            SetROPFillColor( SalROPColor nROPColor ) override;
+    // set the text color to a specific color
+    virtual void            SetTextColor( Color nColor ) override;
+    // set the font
+    virtual void            SetFont( LogicalFontInstance*, int nFallbackLevel ) override;
+    // get the current font's metrics
+    virtual void            GetFontMetric( ImplFontMetricDataRef&, int nFallbackLevel ) override;
+    // get the repertoire of the current font
+    virtual FontCharMapRef  GetFontCharMap() const override;
+    // get the layout capabilities of the current font
+    virtual bool GetFontCapabilities(vcl::FontCapabilities &rGetFontCapabilities) const override;
+    // graphics must fill supplied font list
+    virtual void            GetDevFontList( PhysicalFontCollection* ) override;
+    // graphics must drop any cached font info
+    virtual void            ClearDevFontCache() override;
+    virtual bool            AddTempDevFont( PhysicalFontCollection*, const OUString& rFileURL, const OUString& rFontName ) override;
+    // CreateFontSubset: a method to get a subset of glyhps of a font
+    // inside a new valid font file
+    // returns TRUE if creation of subset was successful
+    // parameters: rToFile: contains an osl file URL to write the subset to
+    //             pFont: describes from which font to create a subset
+    //             pGlyphIDs: the glyph ids to be extracted
+    //             pEncoding: the character code corresponding to each glyph
+    //             pWidths: the advance widths of the corresponding glyphs (in PS font units)
+    //             nGlyphs: the number of glyphs
+    //             rInfo: additional outgoing information
+    // implementation note: encoding 0 with glyph id 0 should be added implicitly
+    // as "undefined character"
+    virtual bool            CreateFontSubset( const OUString& rToFile,
+                                              const PhysicalFontFace*,
+                                              const sal_GlyphId* pGlyphIDs,
+                                              const sal_uInt8* pEncoding,
+                                              sal_Int32* pWidths,
+                                              int nGlyphs,
+                                              FontSubsetInfo& rInfo // out parameter
+                                              ) override;
+
+    // GetEmbedFontData: gets the font data for a font marked
+    // embeddable by GetDevFontList or NULL in case of error
+    // parameters: pFont: describes the font in question
+    //             pDataLen: out parameter, contains the byte length of the returned buffer
+    virtual const void* GetEmbedFontData(const PhysicalFontFace*, long* pDataLen) override;
+    // frees the font data again
+    virtual void            FreeEmbedFontData( const void* pData, long nDataLen ) override;
+    virtual void            GetGlyphWidths( const PhysicalFontFace*,
+                                            bool bVertical,
+                                            std::vector< sal_Int32 >& rWidths,
+                                            Ucs2UIntMap& rUnicodeEnc ) override;
+
+    virtual std::unique_ptr<GenericSalLayout>
+                            GetTextLayout(int nFallbackLevel) override;
+    virtual void            DrawTextLayout( const GenericSalLayout& ) override;
+
+    virtual bool            supportsOperation( OutDevSupportType ) const override;
+
+    virtual SystemGraphicsData GetGraphicsData() const override;
+
+    /// Update settings based on the platform values
+    static void updateSettingsNative( AllSettings& rSettings );
+};
+
+// Init/Deinit Graphics
+void    ImplUpdateSysColorEntries();
+int     ImplIsSysColorEntry( Color nColor );
+void    ImplGetLogFontFromFontSelect( HDC, const FontSelectPattern&,
+            const PhysicalFontFace*, LOGFONTW& );
+
+#define MAX_64KSALPOINTS    ((((sal_uInt16)0xFFFF)-8)/sizeof(POINTS))
+
+// called extremely often from just one spot => inline
+inline bool WinFontFace::HasChar( sal_uInt32 cChar ) const
+{
+    if( mxUnicodeMap->HasChar( cChar ) )
+        return true;
+    // second chance to allow symbol aliasing
+    if( mbAliasSymbolsLow && ((cChar-0xF000) <= 0xFF) )
+        cChar -= 0xF000;
+    else if( mbAliasSymbolsHigh && (cChar <= 0xFF) )
+        cChar += 0xF000;
+    else
+        return false;
+    return mxUnicodeMap->HasChar( cChar );
+}
+
+#endif // INCLUDED_VCL_INC_WIN_SALGDI_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/salids.hrc b/vcl/inc/win/salids.hrc
new file mode 100644
index 000000000..092a24b52
--- /dev/null
+++ b/vcl/inc/win/salids.hrc
@@ -0,0 +1,93 @@
+/* -*- 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_WIN_SALIDS_HRC
+#define INCLUDED_VCL_INC_WIN_SALIDS_HRC
+
+// Cursor
+#define SAL_RESID_POINTER_NULL                      10000
+#define SAL_RESID_POINTER_MAGNIFY                   10015
+#define SAL_RESID_POINTER_FILL                      10016
+#define SAL_RESID_POINTER_ROTATE                    10017
+#define SAL_RESID_POINTER_HSHEAR                    10018
+#define SAL_RESID_POINTER_VSHEAR                    10019
+#define SAL_RESID_POINTER_MIRROR                    10020
+#define SAL_RESID_POINTER_CROOK                     10021
+#define SAL_RESID_POINTER_CROP                      10022
+#define SAL_RESID_POINTER_MOVEPOINT                 10023
+#define SAL_RESID_POINTER_MOVEBEZIERWEIGHT          10024
+#define SAL_RESID_POINTER_MOVEDATA                  10025
+#define SAL_RESID_POINTER_COPYDATA                  10026
+#define SAL_RESID_POINTER_LINKDATA                  10027
+#define SAL_RESID_POINTER_MOVEDATALINK              10028
+#define SAL_RESID_POINTER_COPYDATALINK              10029
+#define SAL_RESID_POINTER_MOVEFILE                  10030
+#define SAL_RESID_POINTER_COPYFILE                  10031
+#define SAL_RESID_POINTER_LINKFILE                  10032
+#define SAL_RESID_POINTER_MOVEFILELINK              10033
+#define SAL_RESID_POINTER_COPYFILELINK              10034
+#define SAL_RESID_POINTER_MOVEFILES                 10035
+#define SAL_RESID_POINTER_COPYFILES                 10036
+#define SAL_RESID_POINTER_DRAW_LINE                 10038
+#define SAL_RESID_POINTER_DRAW_RECT                 10039
+#define SAL_RESID_POINTER_DRAW_POLYGON              10040
+#define SAL_RESID_POINTER_DRAW_BEZIER               10041
+#define SAL_RESID_POINTER_DRAW_ARC                  10042
+#define SAL_RESID_POINTER_DRAW_PIE                  10043
+#define SAL_RESID_POINTER_DRAW_CIRCLECUT            10044
+#define SAL_RESID_POINTER_DRAW_ELLIPSE              10045
+#define SAL_RESID_POINTER_DRAW_FREEHAND             10046
+#define SAL_RESID_POINTER_DRAW_CONNECT              10047
+#define SAL_RESID_POINTER_DRAW_TEXT                 10048
+#define SAL_RESID_POINTER_DRAW_CAPTION              10049
+#define SAL_RESID_POINTER_CHART                     10050
+#define SAL_RESID_POINTER_DETECTIVE                 10051
+#define SAL_RESID_POINTER_PIVOT_COL                 10052
+#define SAL_RESID_POINTER_PIVOT_ROW                 10053
+#define SAL_RESID_POINTER_PIVOT_FIELD               10054
+#define SAL_RESID_POINTER_CHAIN                     10055
+#define SAL_RESID_POINTER_CHAIN_NOTALLOWED          10056
+#define SAL_RESID_POINTER_AUTOSCROLL_N              10059
+#define SAL_RESID_POINTER_AUTOSCROLL_S              10060
+#define SAL_RESID_POINTER_AUTOSCROLL_W              10061
+#define SAL_RESID_POINTER_AUTOSCROLL_E              10062
+#define SAL_RESID_POINTER_AUTOSCROLL_NW             10063
+#define SAL_RESID_POINTER_AUTOSCROLL_NE             10064
+#define SAL_RESID_POINTER_AUTOSCROLL_SW             10065
+#define SAL_RESID_POINTER_AUTOSCROLL_SE             10066
+#define SAL_RESID_POINTER_AUTOSCROLL_NS             10067
+#define SAL_RESID_POINTER_AUTOSCROLL_WE             10068
+#define SAL_RESID_POINTER_AUTOSCROLL_NSWE           10069
+#define SAL_RESID_POINTER_TEXT_VERTICAL             10071
+#define SAL_RESID_POINTER_PIVOT_DELETE              10072
+#define SAL_RESID_POINTER_TAB_SELECT_S              10073
+#define SAL_RESID_POINTER_TAB_SELECT_E              10074
+#define SAL_RESID_POINTER_TAB_SELECT_SE             10075
+#define SAL_RESID_POINTER_TAB_SELECT_W              10076
+#define SAL_RESID_POINTER_TAB_SELECT_SW             10077
+#define SAL_RESID_POINTER_HIDEWHITESPACE            10079
+#define SAL_RESID_POINTER_SHOWWHITESPACE            10080
+
+#define SAL_RESID_BITMAP_50                                             11000
+
+#define SAL_RESID_ICON_DEFAULT                      1
+
+#endif // INCLUDED_VCL_INC_WIN_SALIDS_HRC
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/salinst.h b/vcl/inc/win/salinst.h
new file mode 100644
index 000000000..c06e51c84
--- /dev/null
+++ b/vcl/inc/win/salinst.h
@@ -0,0 +1,87 @@
+/* -*- 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_WIN_SALINST_H
+#define INCLUDED_VCL_INC_WIN_SALINST_H
+
+#include <sal/config.h>
+
+#include <osl/conditn.hxx>
+
+#include <salinst.hxx>
+
+class SalYieldMutex;
+
+class WinSalInstance : public SalInstance
+{
+public:
+    /// Instance Handle
+    HINSTANCE           mhInst;
+    /// invisible Window so non-main threads can SendMessage() the main thread
+    HWND                mhComWnd;
+
+    osl::Condition      maWaitingYieldCond;
+    unsigned            m_nNoYieldLock;
+
+public:
+    WinSalInstance();
+    virtual ~WinSalInstance() override;
+
+    virtual SalFrame*       CreateChildFrame( SystemParentData* pParent, SalFrameStyleFlags nStyle ) override;
+    virtual SalFrame*       CreateFrame( SalFrame* pParent, SalFrameStyleFlags nStyle ) override;
+    virtual void            DestroyFrame( SalFrame* pFrame ) override;
+    virtual SalObject*      CreateObject( SalFrame* pParent, SystemWindowData* pWindowData, bool bShow ) override;
+    virtual void            DestroyObject( SalObject* pObject ) override;
+    virtual std::unique_ptr<SalVirtualDevice>
+                            CreateVirtualDevice( SalGraphics* pGraphics,
+                                                     long &nDX, long &nDY,
+                                                     DeviceFormat eFormat, const SystemGraphicsData *pData = nullptr ) override;
+    virtual SalInfoPrinter* CreateInfoPrinter( SalPrinterQueueInfo* pQueueInfo,
+                                               ImplJobSetup* pSetupData ) override;
+    virtual void            DestroyInfoPrinter( SalInfoPrinter* pPrinter ) override;
+    virtual std::unique_ptr<SalPrinter> CreatePrinter( SalInfoPrinter* pInfoPrinter ) override;
+    virtual void            GetPrinterQueueInfo( ImplPrnQueueList* pList ) override;
+    virtual void            GetPrinterQueueState( SalPrinterQueueInfo* pInfo ) override;
+    virtual OUString            GetDefaultPrinter() override;
+    virtual SalTimer*           CreateSalTimer() override;
+    virtual SalSystem*          CreateSalSystem() override;
+    virtual std::shared_ptr<SalBitmap> CreateSalBitmap() override;
+    virtual bool                IsMainThread() const override;
+
+    virtual bool                DoYield(bool bWait, bool bHandleAllCurrentEvents) override;
+    virtual bool                AnyInput( VclInputFlags nType ) override;
+    virtual std::unique_ptr<SalMenu>     CreateMenu( bool bMenuBar, Menu* ) override;
+    virtual std::unique_ptr<SalMenuItem> CreateMenuItem( const SalItemParams & rItemData ) override;
+    virtual OpenGLContext*      CreateOpenGLContext() override;
+    virtual OUString            GetConnectionIdentifier() override;
+    virtual void                AddToRecentDocumentList(const OUString& rFileUrl, const OUString& rMimeType, const OUString& rDocumentService) override;
+
+    virtual OUString            getOSVersion() override;
+    virtual std::shared_ptr<vcl::BackendCapabilities> GetBackendCapabilities() override;
+
+    static int WorkaroundExceptionHandlingInUSER32Lib(int nExcept, LPEXCEPTION_POINTERS pExceptionInfo);
+};
+
+SalFrame* ImplSalCreateFrame( WinSalInstance* pInst, HWND hWndParent, SalFrameStyleFlags nSalFrameStyle );
+SalObject* ImplSalCreateObject( WinSalInstance* pInst, WinSalFrame* pParent );
+HWND ImplSalReCreateHWND( HWND hWndParent, HWND oldhWnd, bool bAsChild );
+
+#endif // INCLUDED_VCL_INC_WIN_SALINST_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/salmenu.h b/vcl/inc/win/salmenu.h
new file mode 100644
index 000000000..7058d9c82
--- /dev/null
+++ b/vcl/inc/win/salmenu.h
@@ -0,0 +1,68 @@
+/* -*- 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_WIN_SALMENU_H
+#define INCLUDED_VCL_INC_WIN_SALMENU_H
+
+#include <vcl/bitmap.hxx>
+#include <salmenu.hxx>
+
+class WinSalMenu : public SalMenu
+{
+public:
+    WinSalMenu();
+    virtual ~WinSalMenu() override;
+    virtual bool VisibleMenuBar() override;  // must return TRUE to actually DISPLAY native menu bars
+                            // otherwise only menu messages are processed (eg, OLE on Windows)
+
+    virtual void InsertItem( SalMenuItem* pSalMenuItem, unsigned nPos ) override;
+    virtual void RemoveItem( unsigned nPos ) override;
+    virtual void SetSubMenu( SalMenuItem* pSalMenuItem, SalMenu* pSubMenu, unsigned nPos ) override;
+    virtual void SetFrame( const SalFrame* pFrame ) override;
+    virtual void CheckItem( unsigned nPos, bool bCheck ) override;
+    virtual void EnableItem( unsigned nPos, bool bEnable ) override;
+    virtual void SetItemText( unsigned nPos, SalMenuItem* pSalMenuItem, const OUString& rText ) override;
+    virtual void SetItemImage( unsigned nPos, SalMenuItem* pSalMenuItem, const Image& rImage ) override;
+    virtual void SetAccelerator( unsigned nPos, SalMenuItem* pSalMenuItem, const vcl::KeyCode& rKeyCode, const OUString& rKeyName ) override;
+    virtual void GetSystemMenuData( SystemMenuData* pData ) override;
+
+    HMENU mhMenu;           // the menu handle
+    bool  mbMenuBar;        // true for menu bars
+    HWND  mhWnd;            // the window handle where the menubar is attached, may be NULL
+    WinSalMenu *mpParentMenu;  // the parent menu
+};
+
+class WinSalMenuItem : public SalMenuItem
+{
+public:
+    WinSalMenuItem();
+    virtual ~WinSalMenuItem() override;
+
+    MENUITEMINFOW mInfo;
+    void*     mpMenu;       // pointer to corresponding VCL menu
+    OUString  mText;        // the item text
+    OUString  mAccelText;   // the accelerator string
+    Bitmap    maBitmap;     // item image
+    int       mnId;         // item id
+    WinSalMenu*  mpSalMenu;    // the menu where this item is inserted
+};
+
+#endif // INCLUDED_VCL_INC_WIN_SALMENU_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/salobj.h b/vcl/inc/win/salobj.h
new file mode 100644
index 000000000..465c9ec77
--- /dev/null
+++ b/vcl/inc/win/salobj.h
@@ -0,0 +1,55 @@
+/* -*- 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_WIN_SALOBJ_H
+#define INCLUDED_VCL_INC_WIN_SALOBJ_H
+
+#include <salobj.hxx>
+
+
+class WinSalObject : public SalObject
+{
+public:
+    HWND                    mhWnd;                  // Window handle
+    HWND                    mhWndChild;             // Child Window handle
+    HWND                    mhLastFocusWnd;         // Child-Window, which had the last focus
+    SystemEnvData           maSysData;              // SystemEnvData
+    RGNDATA*                mpClipRgnData;          // ClipRegion-Data
+    RGNDATA*                mpStdClipRgnData;       // Cache Standard-ClipRegion-Data
+    RECT*                   mpNextClipRect;         // next ClipRegion-Rect
+    bool                    mbFirstClipRect;        // Flag for first cliprect to insert
+    WinSalObject*           mpNextObject;           // pointer to next object
+
+    WinSalObject();
+    virtual ~WinSalObject() override;
+
+    virtual void                    ResetClipRegion() override;
+    virtual void                    BeginSetClipRegion( sal_uInt32 nRects ) override;
+    virtual void                    UnionClipRegion( long nX, long nY, long nWidth, long nHeight) override;
+    virtual void                    EndSetClipRegion() override;
+    virtual void                    SetPosSize( long nX, long nY, long nWidth, long nHeight ) override;
+    virtual void                    Show( bool bVisible ) override;
+    virtual void                    Enable( bool bEnable ) override;
+    virtual void                    GrabFocus() override;
+    virtual const SystemEnvData*    GetSystemData() const override;
+};
+
+#endif // INCLUDED_VCL_INC_WIN_SALOBJ_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/salprn.h b/vcl/inc/win/salprn.h
new file mode 100644
index 000000000..c0c6e7fb7
--- /dev/null
+++ b/vcl/inc/win/salprn.h
@@ -0,0 +1,113 @@
+/* -*- 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_WIN_SALPRN_H
+#define INCLUDED_VCL_INC_WIN_SALPRN_H
+
+#include <salprn.hxx>
+
+
+// WNT3
+#define SAL_DRIVERDATA_SYSSIGN              ((sal_uIntPtr)0x574E5433)
+
+#pragma pack( 1 )
+
+struct SalDriverData
+{
+    sal_uIntPtr                 mnSysSignature;
+    sal_uInt16                  mnDriverOffset;
+    BYTE                    maDriverData[1];
+};
+
+#pragma pack()
+
+
+class WinSalGraphics;
+
+class WinSalInfoPrinter : public SalInfoPrinter
+{
+public:
+    WinSalGraphics*        mpGraphics;             // current Printer graphics
+    OUString               maDriverName;           // printer driver name
+    OUString               maDeviceName;           // printer device name
+    OUString               maPortName;             // printer port name
+    HDC                    mhDC;                   // printer hdc
+    bool                   mbGraphics;             // is Graphics used
+public:
+    WinSalInfoPrinter();
+    virtual ~WinSalInfoPrinter() override;
+
+    virtual SalGraphics*            AcquireGraphics() override;
+    virtual void                    ReleaseGraphics( SalGraphics* pGraphics ) override;
+    virtual bool                    Setup( weld::Window* pFrame, ImplJobSetup* pSetupData ) override;
+    virtual bool                    SetPrinterData( ImplJobSetup* pSetupData ) override;
+    virtual bool                    SetData( JobSetFlags nFlags, ImplJobSetup* pSetupData ) override;
+    virtual void                    GetPageInfo( const ImplJobSetup* pSetupData,
+                                                 long& rOutWidth, long& rOutHeight,
+                                                 Point& rPageOffset,
+                                                 Size& rPaperSize ) override;
+    virtual sal_uInt32              GetCapabilities( const ImplJobSetup* pSetupData, PrinterCapType nType ) override;
+    virtual sal_uInt16              GetPaperBinCount( const ImplJobSetup* pSetupData ) override;
+    virtual OUString                GetPaperBinName( const ImplJobSetup* pSetupData, sal_uInt16 nPaperBin ) override;
+    virtual void                    InitPaperFormats( const ImplJobSetup* pSetupData ) override;
+    virtual int                     GetLandscapeAngle( const ImplJobSetup* pSetupData ) override;
+};
+
+
+class WinSalPrinter : public SalPrinter
+{
+public:
+    WinSalGraphics*         mpGraphics;             // current Printer graphics
+    WinSalInfoPrinter*      mpInfoPrinter;          // pointer to the compatible InfoPrinter
+    WinSalPrinter*          mpNextPrinter;          // next printing printer
+    HDC                     mhDC;                   // printer hdc
+    SalPrinterError         mnError;                // error code
+    sal_uIntPtr             mnCopies;               // copies
+    bool                    mbCollate;              // collated copies
+    bool                    mbAbort;                // Job Aborted
+
+    bool                    mbValid;
+
+protected:
+    void                            DoEndDoc(HDC hDC);
+
+public:
+    WinSalPrinter();
+    virtual ~WinSalPrinter() override;
+
+    using SalPrinter::StartJob;
+    virtual bool                    StartJob( const OUString* pFileName,
+                                              const OUString& rJobName,
+                                              const OUString& rAppName,
+                                              sal_uInt32 nCopies,
+                                              bool bCollate,
+                                              bool bDirect,
+                                              ImplJobSetup* pSetupData ) override;
+    virtual bool                    EndJob() override;
+    virtual SalGraphics*            StartPage( ImplJobSetup* pSetupData, bool bNewJobData ) override;
+    virtual void                    EndPage() override;
+    virtual SalPrinterError         GetErrorCode() override;
+
+    void markInvalid();
+    bool isValid() const { return mbValid; }
+};
+
+#endif // INCLUDED_VCL_INC_WIN_SALPRN_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/salsys.h b/vcl/inc/win/salsys.h
new file mode 100644
index 000000000..03f627b5a
--- /dev/null
+++ b/vcl/inc/win/salsys.h
@@ -0,0 +1,70 @@
+/* -*- 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_WIN_SALSYS_H
+#define INCLUDED_VCL_INC_WIN_SALSYS_H
+
+#include <salsys.hxx>
+
+#include <vector>
+#include <map>
+
+class WinSalSystem : public SalSystem
+{
+public:
+    struct DisplayMonitor
+    {
+        OUString        m_aName;
+        tools::Rectangle       m_aArea;
+
+        DisplayMonitor() {}
+        DisplayMonitor( const OUString& rName,
+                        const tools::Rectangle& rArea )
+                        : m_aName( rName ),
+                          m_aArea( rArea )
+        {
+        }
+    };
+private:
+    std::vector<DisplayMonitor>             m_aMonitors;
+    std::map<OUString, unsigned int>   m_aDeviceNameToMonitor;
+    unsigned int                            m_nPrimary;
+public:
+    WinSalSystem() : m_nPrimary( 0 ) {}
+    virtual ~WinSalSystem() override;
+
+    virtual unsigned int GetDisplayScreenCount() override;
+    virtual unsigned int GetDisplayBuiltInScreen() override;
+    virtual tools::Rectangle GetDisplayScreenPosSizePixel( unsigned int nScreen )  override;
+    virtual int ShowNativeMessageBox( const OUString& rTitle,
+                                      const OUString& rMessage)  override;
+    bool initMonitors();
+    // discards monitorinfo; used by WM_DISPLAYCHANGED handler
+    void clearMonitors();
+    const std::vector<DisplayMonitor>& getMonitors()
+    { initMonitors(); return m_aMonitors;}
+
+    bool handleMonitorCallback( sal_IntPtr /*HMONITOR*/,
+                                sal_IntPtr /*HDC*/,
+                                sal_IntPtr /*LPRECT*/ );
+};
+
+#endif // INCLUDED_VCL_INC_WIN_SALSYS_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/saltimer.h b/vcl/inc/win/saltimer.h
new file mode 100644
index 000000000..a467de815
--- /dev/null
+++ b/vcl/inc/win/saltimer.h
@@ -0,0 +1,86 @@
+/* -*- 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_WIN_SALTIMER_H
+#define INCLUDED_VCL_INC_WIN_SALTIMER_H
+
+#include <saltimer.hxx>
+
+class WinSalTimer final : public SalTimer, protected VersionedEvent
+{
+    // for access to Impl* functions
+    friend LRESULT CALLBACK SalComWndProc( HWND, UINT nMsg, WPARAM wParam, LPARAM lParam, bool& rDef );
+    // for access to GetNextVersionedEvent
+    friend void CALLBACK SalTimerProc( PVOID data, BOOLEAN );
+    // for access to ImplHandleElapsedTimer
+    friend bool ImplSalYield( bool bWait, bool bHandleAllCurrentEvents );
+
+    /**
+     * Identifier for our SetTimer based timer
+     */
+    static constexpr UINT_PTR m_aWmTimerId = 0xdeadbeef;
+
+    HANDLE       m_nTimerId;          ///< Windows timer id
+    bool         m_bDirectTimeout;    ///< timeout can be processed directly
+    bool         m_bForceRealTimer;   ///< enforce using a real timer for 0ms
+    bool         m_bSetTimerRunning;  ///< true, if a SetTimer is running
+
+    void ImplStart( sal_uInt64 nMS );
+    void ImplStop();
+    void ImplHandleTimerEvent( WPARAM aWPARAM );
+    void ImplHandleElapsedTimer();
+    void ImplHandle_WM_TIMER( WPARAM aWPARAM );
+
+public:
+    WinSalTimer();
+    virtual ~WinSalTimer() override;
+
+    virtual void Start(sal_uInt64 nMS) override;
+    virtual void Stop() override;
+
+    inline bool IsDirectTimeout() const;
+    inline bool HasTimerElapsed() const;
+
+    /**
+     * Enforces the usage of a real timer instead of the message queue
+     *
+     * Needed for Window resize processing, as this starts a modal event loop.
+     */
+    void SetForceRealTimer( bool bVal );
+    inline bool GetForceRealTimer() const;
+};
+
+inline bool WinSalTimer::IsDirectTimeout() const
+{
+    return m_bDirectTimeout;
+}
+
+inline bool WinSalTimer::HasTimerElapsed() const
+{
+    return m_bDirectTimeout || ExistsValidEvent();
+}
+
+inline bool WinSalTimer::GetForceRealTimer() const
+{
+    return m_bForceRealTimer;
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/salvd.h b/vcl/inc/win/salvd.h
new file mode 100644
index 000000000..4121d2c89
--- /dev/null
+++ b/vcl/inc/win/salvd.h
@@ -0,0 +1,70 @@
+/* -*- 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_WIN_SALVD_H
+#define INCLUDED_VCL_INC_WIN_SALVD_H
+
+#include <sal/config.h>
+#include <win/scoped_gdi.hxx>
+
+#include <memory>
+
+#include <salvd.hxx>
+
+class WinSalGraphics;
+
+
+class WinSalVirtualDevice : public SalVirtualDevice
+{
+private:
+    HDC                     mhLocalDC;              // HDC or 0 for Cache Device
+    ScopedHBITMAP           mhBmp;                  // Memory Bitmap
+    HBITMAP                 mhDefBmp;               // Default Bitmap
+    std::unique_ptr<WinSalGraphics> mpGraphics;     // current VirDev graphics
+    WinSalVirtualDevice*    mpNext;                 // next VirDev
+    sal_uInt16              mnBitCount;             // BitCount (0 or 1)
+    bool                    mbGraphics;             // is Graphics used
+    bool                    mbForeignDC;            // uses a foreign DC instead of a bitmap
+    long                    mnWidth;
+    long                    mnHeight;
+
+public:
+    HDC getHDC() const { return mhLocalDC; }
+    WinSalGraphics* getGraphics() const { return mpGraphics.get(); }
+    void setGraphics(WinSalGraphics* pVirGraphics) { mpGraphics.reset(pVirGraphics); }
+    WinSalVirtualDevice* getNext() const { return mpNext; }
+
+    WinSalVirtualDevice(HDC hDC = nullptr, HBITMAP hBMP = nullptr, sal_uInt16 nBitCount = 0, bool bForeignDC = false, long nWidth = 0, long nHeight = 0);
+    virtual ~WinSalVirtualDevice() override;
+
+    virtual SalGraphics*    AcquireGraphics() override;
+    virtual void            ReleaseGraphics( SalGraphics* pGraphics ) override;
+    virtual bool            SetSize( long nNewDX, long nNewDY ) override;
+
+    static HBITMAP ImplCreateVirDevBitmap(HDC hDC, long nDX, long nDY, sal_uInt16 nBitCount, void **ppDummy);
+
+    // SalGeometryProvider
+    virtual long GetWidth() const override { return mnWidth; }
+    virtual long GetHeight() const override { return mnHeight; }
+};
+
+
+#endif // INCLUDED_VCL_INC_WIN_SALVD_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/scoped_gdi.hxx b/vcl/inc/win/scoped_gdi.hxx
new file mode 100644
index 000000000..d02ad9545
--- /dev/null
+++ b/vcl/inc/win/scoped_gdi.hxx
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * 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/.
+ */
+
+#ifndef INCLUDED_VCL_INC_WIN_SCOPED_GDI_HXX
+#define INCLUDED_VCL_INC_WIN_SCOPED_GDI_HXX
+
+#include <win/svsys.h>
+#include <win/wincomp.hxx>
+#include <win/saldata.hxx>
+
+#include <memory>
+
+template <typename H, auto DeleterFunc> struct GDIDeleter
+{
+    using pointer = H;
+    void operator()(H h) { DeleterFunc(h); }
+};
+
+template <typename H, auto DeleterFunc>
+using ScopedGDI = std::unique_ptr<H, GDIDeleter<H, DeleterFunc>>;
+
+using ScopedHBRUSH = ScopedGDI<HBRUSH, DeleteBrush>;
+using ScopedHRGN = ScopedGDI<HRGN, DeleteRegion>;
+using ScopedHDC = ScopedGDI<HDC, DeleteDC>;
+using ScopedHPEN = ScopedGDI<HPEN, DeletePen>;
+using ScopedHFONT = ScopedGDI<HFONT, DeleteFont>;
+using ScopedHBITMAP = ScopedGDI<HBITMAP, DeleteBitmap>;
+
+template <typename ScopedH, auto SelectorFunc> class ScopedSelectedGDI
+{
+public:
+    ScopedSelectedGDI(HDC hDC, typename ScopedH::pointer h)
+        : m_hDC(hDC)
+        , m_hSelectedH(h)
+        , m_hOrigH(SelectorFunc(hDC, h))
+    {
+    }
+
+    ~ScopedSelectedGDI() { SelectorFunc(m_hDC, m_hOrigH); }
+
+private:
+    HDC m_hDC;
+    ScopedH m_hSelectedH;
+    typename ScopedH::pointer m_hOrigH;
+};
+
+using ScopedSelectedHPEN = ScopedSelectedGDI<ScopedHPEN, SelectPen>;
+using ScopedSelectedHFONT = ScopedSelectedGDI<ScopedHFONT, SelectFont>;
+using ScopedSelectedHBRUSH = ScopedSelectedGDI<ScopedHBRUSH, SelectBrush>;
+
+template <sal_uLong ID> class ScopedCachedHDC
+{
+public:
+    explicit ScopedCachedHDC(HBITMAP hBitmap)
+        : m_hDC(ImplGetCachedDC(ID, hBitmap))
+    {
+    }
+
+    ~ScopedCachedHDC() { ImplReleaseCachedDC(ID); }
+
+    HDC get() const { return m_hDC; }
+
+private:
+    HDC m_hDC;
+};
+
+#endif // INCLUDED_VCL_INC_WIN_SCOPED_GDI_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
diff --git a/vcl/inc/win/svsys.h b/vcl/inc/win/svsys.h
new file mode 100644
index 000000000..44cae93cf
--- /dev/null
+++ b/vcl/inc/win/svsys.h
@@ -0,0 +1,33 @@
+/* -*- 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_WIN_SVSYS_H
+#define INCLUDED_VCL_INC_WIN_SVSYS_H
+
+#ifdef _WIN32
+#ifndef INCLUDED_PRE_POST_WIN_H
+#define INCLUDED_PRE_POST_WIN_H
+#include <prewin.h>
+#include <postwin.h>
+#endif
+#endif
+
+#endif // INCLUDED_VCL_INC_WIN_SVSYS_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/wincomp.hxx b/vcl/inc/win/wincomp.hxx
new file mode 100644
index 000000000..05b4800e1
--- /dev/null
+++ b/vcl/inc/win/wincomp.hxx
@@ -0,0 +1,234 @@
+/* -*- 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_WIN_WINCOMP_HXX
+#define INCLUDED_VCL_INC_WIN_WINCOMP_HXX
+
+#include <string.h>
+
+
+// Adjustments for TypeChecking
+
+inline HPEN SelectPen( HDC hDC, HPEN hPen )
+{
+    return static_cast<HPEN>(SelectObject( hDC, static_cast<HGDIOBJ>(hPen) ));
+}
+
+inline void DeletePen( HPEN hPen )
+{
+    DeleteObject( static_cast<HGDIOBJ>(hPen) );
+}
+
+inline HPEN GetStockPen( int nObject )
+{
+    return static_cast<HPEN>(GetStockObject( nObject ));
+}
+
+inline HBRUSH SelectBrush( HDC hDC, HBRUSH hBrush )
+{
+    return static_cast<HBRUSH>(SelectObject( hDC, static_cast<HGDIOBJ>(hBrush) ));
+}
+
+inline void DeleteBrush( HBRUSH hBrush )
+{
+    DeleteObject( static_cast<HGDIOBJ>(hBrush) );
+}
+
+inline HBRUSH GetStockBrush( int nObject )
+{
+    return static_cast<HBRUSH>(GetStockObject( nObject ));
+}
+
+inline HFONT SelectFont( HDC hDC, HFONT hFont )
+{
+    return static_cast<HFONT>(SelectObject( hDC, static_cast<HGDIOBJ>(hFont) ));
+}
+
+inline void DeleteFont( HFONT hFont )
+{
+    DeleteObject( static_cast<HGDIOBJ>(hFont) );
+}
+
+inline HFONT GetStockFont( int nObject )
+{
+    return static_cast<HFONT>(GetStockObject( nObject ));
+}
+
+inline HBITMAP SelectBitmap( HDC hDC, HBITMAP hBitmap )
+{
+    return static_cast<HBITMAP>(SelectObject( hDC, static_cast<HGDIOBJ>(hBitmap) ));
+}
+
+inline void DeleteBitmap( HBITMAP hBitmap )
+{
+    DeleteObject( static_cast<HGDIOBJ>(hBitmap) );
+}
+
+inline void DeleteRegion( HRGN hRegion )
+{
+    DeleteObject( static_cast<HGDIOBJ>(hRegion) );
+}
+
+inline HPALETTE GetStockPalette( int nObject )
+{
+    return static_cast<HPALETTE>(GetStockObject( nObject ));
+}
+
+inline void DeletePalette( HPALETTE hPalette )
+{
+    DeleteObject( static_cast<HGDIOBJ>(hPalette) );
+}
+
+inline void SetWindowStyle( HWND hWnd, DWORD nStyle )
+{
+    SetWindowLongPtrW( hWnd, GWL_STYLE, nStyle );
+}
+
+inline DWORD GetWindowStyle( HWND hWnd )
+{
+    return GetWindowLongPtrW( hWnd, GWL_STYLE );
+}
+
+inline void SetWindowExStyle( HWND hWnd, DWORD nStyle )
+{
+    SetWindowLongPtrW( hWnd, GWL_EXSTYLE, nStyle );
+}
+
+inline DWORD GetWindowExStyle( HWND hWnd )
+{
+    return GetWindowLongPtrW( hWnd, GWL_EXSTYLE );
+}
+
+inline BOOL IsMinimized( HWND hWnd )
+{
+    return IsIconic( hWnd );
+}
+
+inline BOOL IsMaximized( HWND hWnd )
+{
+    return IsZoomed( hWnd );
+}
+
+inline void SetWindowFont( HWND hWnd, HFONT hFont, BOOL bRedraw )
+{
+    SendMessageW( hWnd, WM_SETFONT, reinterpret_cast<WPARAM>(hFont), MAKELPARAM(static_cast<UINT>(bRedraw),0) );
+}
+
+inline HFONT GetWindowFont( HWND hWnd )
+{
+    return reinterpret_cast<HFONT>(SendMessageW( hWnd, WM_GETFONT, 0, 0 ));
+}
+
+inline void SetClassCursor( HWND hWnd, HCURSOR hCursor )
+{
+    SetClassLongPtr( hWnd, GCLP_HCURSOR, reinterpret_cast<LONG_PTR>(hCursor) );
+}
+
+inline HCURSOR GetClassCursor( HWND hWnd )
+{
+    return reinterpret_cast<HCURSOR>(GetClassLongPtr( hWnd, GCLP_HCURSOR ));
+}
+
+inline void SetClassIcon( HWND hWnd, HICON hIcon )
+{
+    SetClassLongPtr( hWnd, GCLP_HICON, reinterpret_cast<LONG_PTR>(hIcon) );
+}
+
+inline HICON GetClassIcon( HWND hWnd )
+{
+    return reinterpret_cast<HICON>(GetClassLongPtr( hWnd, GCLP_HICON ));
+}
+
+inline HBRUSH SetClassBrush( HWND hWnd, HBRUSH hBrush )
+{
+    return reinterpret_cast<HBRUSH>(SetClassLongPtr( hWnd, GCLP_HBRBACKGROUND, reinterpret_cast<LONG_PTR>(hBrush) ));
+}
+
+inline HBRUSH GetClassBrush( HWND hWnd )
+{
+    return reinterpret_cast<HBRUSH>(GetClassLongPtr( hWnd, GCLP_HBRBACKGROUND ));
+}
+
+inline HINSTANCE GetWindowInstance( HWND hWnd )
+{
+    return reinterpret_cast<HINSTANCE>(GetWindowLongPtrW( hWnd, GWLP_HINSTANCE ));
+}
+
+
+#define MOUSEZ_CLASSNAME  L"MouseZ"            // wheel window class
+#define MOUSEZ_TITLE      L"Magellan MSWHEEL"  // wheel window title
+
+#define MSH_WHEELMODULE_CLASS (MOUSEZ_CLASSNAME)
+#define MSH_WHEELMODULE_TITLE (MOUSEZ_TITLE)
+
+#define MSH_SCROLL_LINES L"MSH_SCROLL_LINES_MSG"
+
+#ifndef WHEEL_DELTA
+#define WHEEL_DELTA                 120
+#endif
+#ifndef WM_MOUSEWHEEL
+#define WM_MOUSEWHEEL               0x020A
+#endif
+#ifndef SPI_GETWHEELSCROLLLINES
+#define SPI_GETWHEELSCROLLLINES     104
+#endif
+#ifndef SPI_SETWHEELSCROLLLINES
+#define SPI_SETWHEELSCROLLLINES     105
+#endif
+#ifndef WHEEL_PAGESCROLL
+#define WHEEL_PAGESCROLL            (UINT_MAX)
+#endif
+
+
+// - 5.0 extensions -
+
+#ifndef COLOR_GRADIENTACTIVECAPTION
+#define COLOR_GRADIENTACTIVECAPTION     27
+#endif
+#ifndef COLOR_GRADIENTINACTIVECAPTION
+#define COLOR_GRADIENTINACTIVECAPTION   28
+#endif
+
+#ifndef SPI_GETFLATMENU
+#define SPI_GETFLATMENU     0x1022
+#endif
+#ifndef COLOR_MENUBAR
+#define COLOR_MENUBAR       30
+#endif
+#ifndef COLOR_MENUHILIGHT
+#define COLOR_MENUHILIGHT   29
+#endif
+
+#ifndef CS_DROPSHADOW
+#define CS_DROPSHADOW       0x00020000
+#endif
+
+// MT 12/03: From winuser.h, only needed in salframe.cxx
+// Better change salframe.cxx to include winuser.h
+
+#define WS_EX_LAYERED           0x00080000
+
+#ifndef WM_UNICHAR
+#define WM_UNICHAR              0x0109
+#define UNICODE_NOCHAR          0xFFFF
+#endif
+
+#endif // INCLUDED_VCL_INC_WIN_WINCOMP_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/wingdiimpl.hxx b/vcl/inc/win/wingdiimpl.hxx
new file mode 100644
index 000000000..679be2c36
--- /dev/null
+++ b/vcl/inc/win/wingdiimpl.hxx
@@ -0,0 +1,61 @@
+/* -*- 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/.
+ */
+
+#ifndef INCLUDED_VCL_INC_WIN_WINGDIIMPL_HXX
+#define INCLUDED_VCL_INC_WIN_WINGDIIMPL_HXX
+
+#include <win/salgdi.h>
+#include <ControlCacheKey.hxx>
+
+class ControlCacheKey;
+
+// Base class for some functionality that OpenGL/Skia/GDI backends must each implement.
+class WinSalGraphicsImplBase
+{
+public:
+    virtual ~WinSalGraphicsImplBase(){};
+
+    // If true is returned, the following functions are used for drawing controls.
+    virtual bool UseRenderNativeControl() const { return false; }
+    virtual bool TryRenderCachedNativeControl(const ControlCacheKey& /*rControlCacheKey*/,
+                                              int /*nX*/, int /*nY*/)
+    {
+        abort();
+    };
+    virtual bool RenderAndCacheNativeControl(CompatibleDC& /*rWhite*/, CompatibleDC& /*rBlack*/,
+                                             int /*nX*/, int /*nY*/,
+                                             ControlCacheKey& /*aControlCacheKey*/)
+    {
+        abort();
+    };
+
+    virtual void ClearDevFontCache(){};
+
+    // Implementation for WinSalGraphics::DrawTextLayout().
+    // Returns true if handled, if false, then WinSalGraphics will handle it itself.
+    virtual bool DrawTextLayout(const GenericSalLayout&) { return false; }
+    // If true is returned, the following functions are used for text rendering.
+    virtual bool UseTextDraw() const { return false; }
+    virtual void PreDrawText() {}
+    virtual void PostDrawText() {}
+    virtual void DrawTextMask(CompatibleDC::Texture* /*rTexture*/, Color /*nMaskColor*/,
+                              const SalTwoRect& /*rPosAry*/)
+    {
+        abort();
+    };
+    virtual void DeferredTextDraw(const CompatibleDC::Texture* /*pTexture*/, Color /*nMaskColor*/,
+                                  const SalTwoRect& /*rPosAry*/)
+    {
+        abort();
+    };
+};
+
+#endif // INCLUDED_VCL_INC_WIN_WINGDIIMPL_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/inc/win/winlayout.hxx b/vcl/inc/win/winlayout.hxx
new file mode 100644
index 000000000..35a855a37
--- /dev/null
+++ b/vcl/inc/win/winlayout.hxx
@@ -0,0 +1,187 @@
+/* -*- 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_WIN_WINLAYOUT_HXX
+#define INCLUDED_VCL_INC_WIN_WINLAYOUT_HXX
+
+#include <rtl/ustring.hxx>
+
+#include <sallayout.hxx>
+#include <svsys.h>
+#include <win/salgdi.h>
+#include <o3tl/sorted_vector.hxx>
+
+class WinFontInstance;
+
+namespace
+{
+// Extra space at the top and bottom of the glyph in total = tmHeight / GLYPH_SPACE_RATIO;
+const int GLYPH_SPACE_RATIO = 8;
+// Border size at the top of the glyph = tmHeight / GLYPH_OFFSET_RATIO;
+const int GLYPH_OFFSET_RATIO = GLYPH_SPACE_RATIO * 2;
+}
+
+struct WinGlyphDrawElement
+{
+    tools::Rectangle maLocation;
+    int maLeftOverhangs;
+    std::unique_ptr<CompatibleDC::Texture> maTexture;
+    int mnBaselineOffset;
+    int mnHeight;
+    bool mbVertical;
+
+    int getExtraSpace() const
+    {
+        return std::max(mnHeight / GLYPH_SPACE_RATIO, 4);
+    }
+
+    int getExtraOffset() const
+    {
+        return std::max(mnHeight / GLYPH_OFFSET_RATIO, 2);
+    }
+};
+
+class WinGlyphCache;
+
+struct GlobalWinGlyphCache
+{
+    o3tl::sorted_vector<WinGlyphCache*> maWinGlyphCaches;
+
+    static GlobalWinGlyphCache * get();
+
+    virtual ~GlobalWinGlyphCache() {}
+    virtual bool AllocateTexture(WinGlyphDrawElement& rElement, CompatibleDC* dc) = 0;
+    virtual void NotifyElementUsed(WinGlyphDrawElement& /*rElement*/) {}
+    virtual void Prune() {}
+};
+
+class WinGlyphCache
+{
+protected:
+    std::unordered_map<int, WinGlyphDrawElement> maWinTextureCache;
+
+public:
+    WinGlyphCache()
+    {
+        if(GlobalWinGlyphCache* c = GlobalWinGlyphCache::get())
+            c->maWinGlyphCaches.insert(this);
+    }
+
+    virtual ~WinGlyphCache()
+    {
+        if(GlobalWinGlyphCache* c = GlobalWinGlyphCache::get())
+            c->maWinGlyphCaches.erase(this);
+    }
+
+    void PutDrawElementInCache(WinGlyphDrawElement&& rElement, int nGlyphIndex)
+    {
+        assert(GlobalWinGlyphCache::get());
+        assert(!IsGlyphCached(nGlyphIndex));
+        maWinTextureCache[nGlyphIndex] = std::move( rElement );
+    }
+
+    WinGlyphDrawElement& GetDrawElement(int nGlyphIndex)
+    {
+        assert(GlobalWinGlyphCache::get());
+        assert(IsGlyphCached(nGlyphIndex));
+        WinGlyphDrawElement& element = maWinTextureCache[nGlyphIndex];
+        GlobalWinGlyphCache::get()->NotifyElementUsed(element);
+        return element;
+    }
+
+    bool IsGlyphCached(int nGlyphIndex) const
+    {
+        return maWinTextureCache.find(nGlyphIndex) != maWinTextureCache.end();
+    }
+};
+
+// win32 specific logical font instance
+class WinFontInstance : public LogicalFontInstance
+{
+    friend rtl::Reference<LogicalFontInstance> WinFontFace::CreateFontInstance(const FontSelectPattern&) const;
+
+public:
+    ~WinFontInstance() override;
+
+    bool hasHScale() const;
+    float getHScale() const;
+
+    void SetGraphics(WinSalGraphics*);
+    WinSalGraphics* GetGraphics() const { return m_pGraphics; }
+
+    HFONT GetHFONT() const { return m_hFont; }
+    float GetScale() const { return m_fScale; }
+
+    // Prevent deletion of the HFONT in the WinFontInstance destructor
+    // Used for the ScopedFont handling
+    void SetHFONT(HFONT hFont) { m_hFont = hFont; }
+
+    const WinFontFace * GetFontFace() const { return static_cast<const WinFontFace *>(LogicalFontInstance::GetFontFace()); }
+    WinFontFace * GetFontFace() { return static_cast<WinFontFace *>(LogicalFontInstance::GetFontFace()); }
+
+    bool CacheGlyphToAtlas(HDC hDC, HFONT hFont, int nGlyphIndex, SalGraphics& rGraphics, const GenericSalLayout& rLayout);
+    WinGlyphCache& GetWinGlyphCache() { return maWinGlyphCache; }
+
+    bool GetGlyphOutline(sal_GlyphId, basegfx::B2DPolyPolygon&, bool) const override;
+
+private:
+    explicit WinFontInstance(const WinFontFace&, const FontSelectPattern&);
+
+    hb_font_t* ImplInitHbFont() override;
+    bool ImplGetGlyphBoundRect(sal_GlyphId, tools::Rectangle&, bool) const override;
+
+    WinSalGraphics *m_pGraphics;
+    HFONT m_hFont;
+    float m_fScale;
+    WinGlyphCache maWinGlyphCache;
+};
+
+class TextOutRenderer
+{
+protected:
+    explicit TextOutRenderer() = default;
+    TextOutRenderer(const TextOutRenderer &) = delete;
+    TextOutRenderer & operator = (const TextOutRenderer &) = delete;
+
+public:
+    static TextOutRenderer & get(bool bUseDWrite);
+
+    virtual ~TextOutRenderer() = default;
+
+    virtual bool operator ()(GenericSalLayout const &rLayout,
+        SalGraphics &rGraphics,
+        HDC hDC) = 0;
+};
+
+class ExTextOutRenderer : public TextOutRenderer
+{
+    ExTextOutRenderer(const ExTextOutRenderer &) = delete;
+    ExTextOutRenderer & operator = (const ExTextOutRenderer &) = delete;
+
+public:
+    explicit ExTextOutRenderer() = default;
+
+    bool operator ()(GenericSalLayout const &rLayout,
+        SalGraphics &rGraphics,
+        HDC hDC) override;
+};
+
+#endif // INCLUDED_VCL_INC_WIN_WINLAYOUT_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */