+    vInfo.cb = sizeof(SBCDATA);
+    vInfo.posFirst = 0;
+    vInfo.posLast = (SHORT)nRange1;
+    vInfo.posThumb = nPos;
+
+    if (nOrient == wxHORIZONTAL )
+    {
+        ulStyle |= SBS_HORZ;
+        if (m_hWndScrollBarHorz == 0L)
+        {
+            //
+            // Since the scrollbars are usually created before the owner is
+            // sized either via an OnSize event directly or via sizers or
+            // layout constraints, we will initially just use the coords of
+            // the parent window (this is usually a frame client window). But
+            // the bars themselves, are children of the parent frame (i.e
+            // siblings of the frame client.  The owner, however is the actual
+            // window being scrolled (or at least the one responsible for
+            // handling the scroll events). The owner will be resized later,
+            // as it is usually a child of a top level window, and when that
+            // is done its scrollbars will be resized and repositioned as well.
+            //
+            m_hWndScrollBarHorz = ::WinCreateWindow( hWndParent
+                                                    ,WC_SCROLLBAR
+                                                    ,(PSZ)NULL
+                                                    ,ulStyle
+                                                    ,vSwp.x
+                                                    ,vSwp.y
+                                                    ,vSwp.cx - 20
+                                                    ,20
+                                                    ,hWnd
+                                                    ,HWND_TOP
+                                                    ,60000
+                                                    ,&vInfo
+                                                    ,NULL
+                                                   );
+        }
+        else
+        {
+            //
+            // The owner (the scrolled window) is a child of the Frame's
+            // client window, usually.  The scrollbars are children of the
+            // frame, itself, and thus are positioned relative to the frame's
+            // origin, not the frame's client window origin.
+            // The starting x position is the same as the starting x position
+            // of the owner, but in terms of the parent frame.
+            // The starting y position is 20 pels below the origin of the
+            // owner in terms of the parent frame.
+            // The horz bar is the same width as the owner and 20 pels high.
+            //
+            if (nRange1 >= nThumbVisible)
+            {
+                ::WinSetWindowPos( m_hWndScrollBarHorz
+                                  ,HWND_TOP
+                                  ,vSwp.x + vSwpOwner.x
+                                  ,(vSwp.y + vSwpOwner.y) - 20
+                                  ,vSwpOwner.cx
+                                  ,20
+                                  ,SWP_MOVE | SWP_SIZE | SWP_SHOW | SWP_ACTIVATE | SWP_ZORDER
+                                 );
+                ::WinSendMsg( m_hWndScrollBarHorz
+                             ,SBM_SETSCROLLBAR
+                             ,(MPARAM)nPos
+                             ,MPFROM2SHORT(0, (SHORT)nRange1)
+                            );
+                ::WinSendMsg( m_hWndScrollBarHorz
+                             ,SBM_SETTHUMBSIZE
+                             ,MPFROM2SHORT( (SHORT)nThumbVisible
+                                           ,(SHORT)nRange1
+                                          )
+                             ,(MPARAM)0
+                            );
+            }
+            else
+                ::WinShowWindow(m_hWndScrollBarHorz, FALSE);
+        }
+    }
+    else
+    {
+        ulStyle |= SBS_VERT;
+        if (m_hWndScrollBarVert == 0L)
+        {
+            //
+            // Since the scrollbars are usually created before the owner is
+            // sized either via an OnSize event directly or via sizers or
+            // layout constraints, we will initially just use the coords of
+            // the parent window (this is usually a frame client window). But
+            // the bars themselves, are children of the parent frame (i.e
+            // siblings of the frame client.  The owner, however is the actual
+            // window being scrolled (or at least the one responsible for
+            // handling the scroll events). The owner will be resized later,
+            // as it is usually a child of a top level window, and when that
+            // is done its scrollbars will be resized and repositioned as well.
+            //
+            m_hWndScrollBarVert = ::WinCreateWindow( hWndParent
+                                                    ,WC_SCROLLBAR
+                                                    ,(PSZ)NULL
+                                                    ,ulStyle
+                                                    ,vSwp.x + vSwp.cx - 20
+                                                    ,vSwp.y + 20
+                                                    ,20
+                                                    ,vSwp.cy - 20
+                                                    ,hWnd
+                                                    ,HWND_TOP
+                                                    ,60001
+                                                    ,&vInfo
+                                                    ,NULL
+                                                   );
+        }
+        else
+        {
+            //
+            // The owner (the scrolled window) is a child of the Frame's
+            // client window, usually.  The scrollbars are children of the
+            // frame, itself and thus are positioned relative to the frame's
+            // origin, not the frame's client window's origin.
+            // Thus, the x position will be frame client's x (usually a few
+            // pels inside the parent frame, plus the width of the owner.
+            // Since we may be using sizers or layout constraints for multiple
+            // child scrolled windows, the y position will be the frame client's
+            // y pos plus the scrolled windows y position, yielding the y
+            // position of the scrollbar relative to the parent frame (the vert
+            // scrollbar is on the right and starts at the bottom of the
+            // owner window).
+            // It is 20 pels wide and the same height as the owner.
+            //
+            if (nRange1 >= nThumbVisible)
+            {
+                ::WinSetWindowPos( m_hWndScrollBarVert
+                                  ,HWND_TOP
+                                  ,vSwp.x + vSwpOwner.x + vSwpOwner.cx
+                                  ,vSwp.y + vSwpOwner.y
+                                  ,20
+                                  ,vSwpOwner.cy
+                                  ,SWP_ACTIVATE | SWP_MOVE | SWP_SIZE | SWP_SHOW
+                                 );
+                ::WinSendMsg( m_hWndScrollBarVert
+                             ,SBM_SETSCROLLBAR
+                             ,(MPARAM)nPos
+                             ,MPFROM2SHORT(0, (SHORT)nRange1)
+                            );
+                ::WinSendMsg( m_hWndScrollBarVert
+                             ,SBM_SETTHUMBSIZE
+                             ,MPFROM2SHORT( (SHORT)nThumbVisible
+                                           ,(SHORT)nRange1
+                                          )
+                             ,(MPARAM)0
+                            );
+            }
+            else
+                ::WinShowWindow(m_hWndScrollBarVert, FALSE);
+        }
+        m_nYThumbSize = nThumbVisible;
+    }
+} // end of wxWindowOS2::SetScrollbar
+
+void wxWindowOS2::ScrollWindow(
+  int                               nDx
+, int                               nDy
+, const wxRect*                     pRect
+)
+{
+    RECTL                           vRect;
+    RECTL                           vRectHorz;
+    RECTL                           vRectVert;
+    RECTL                           vRectChild;
+
+    if (pRect)
+    {
+        vRect.xLeft   = pRect->x;
+        vRect.yTop    = pRect->y + pRect->height;
+        vRect.xRight  = pRect->x + pRect->width;
+        vRect.yBottom = pRect->y;
+    }
+    else
+    {
+        ::WinQueryWindowRect(GetHwnd(), &vRect);
+    }
+    nDy *= -1; // flip the sign of Dy as OS/2 is opposite Windows.
+    ::WinScrollWindow( GetHwnd()
+                      ,(LONG)nDx
+                      ,(LONG)nDy
+                      ,&vRect
+                      ,&vRect
+                      ,NULLHANDLE
+                      ,NULL
+                      ,SW_SCROLLCHILDREN | SW_INVALIDATERGN
+                     );
+    Refresh();
+} // end of wxWindowOS2::ScrollWindow
+
+// ---------------------------------------------------------------------------
+// subclassing
+// ---------------------------------------------------------------------------
+
+void wxWindowOS2::SubclassWin(
+  WXHWND                            hWnd
+)
+{
+    HWND                            hwnd = (HWND)hWnd;
+
+    wxCHECK_RET(::WinIsWindow(vHabmain, hwnd), wxT("invalid HWND in SubclassWin") );
+    wxAssociateWinWithHandle( hWnd
+                             ,(wxWindow*)this
+                            );
+    if (!wxCheckWindowWndProc( hWnd
+                              ,(WXFARPROC)wxWndProc
+                             ))
+    {
+        m_fnOldWndProc = (WXFARPROC) ::WinSubclassWindow(hwnd, (PFNWP)wxWndProc);
+    }
+    else
+    {
+        m_fnOldWndProc = (WXFARPROC)NULL;
+    }
+} // end of wxWindowOS2::SubclassWin
+
+void wxWindowOS2::UnsubclassWin()
+{
+    //
+    // Restore old Window proc
+    //
+    HWND                            hwnd = GetHWND();
+
+    if (m_hWnd)
+    {
+        wxCHECK_RET( ::WinIsWindow(vHabmain, hwnd), wxT("invalid HWND in UnsubclassWin") );
+
+        PFNWP                       fnProc = (PFNWP)::WinQueryWindowPtr(hwnd, QWP_PFNWP);
+
+        if ( (m_fnOldWndProc != 0) && (fnProc != (PFNWP) m_fnOldWndProc))
+        {
+            WinSubclassWindow(hwnd, (PFNWP)m_fnOldWndProc);
+            m_fnOldWndProc = 0;
+        }
+    }
+} // end of wxWindowOS2::UnsubclassWin
+
+bool wxCheckWindowWndProc(
+  WXHWND                            hWnd
+, WXFARPROC                         fnWndProc
+)
+{
+    static char                     zBuffer[512];
+    CLASSINFO                       vCls;
+
+    ::WinQueryClassName((HWND)hWnd, (LONG)512, (PCH)zBuffer);
+    ::WinQueryClassInfo(wxGetInstance(), (PSZ)zBuffer, &vCls);
+    return(fnWndProc == (WXFARPROC)vCls.pfnWindowProc);
+} // end of WinGuiBase_CheckWindowWndProc
+
+void wxWindowOS2::SetWindowStyleFlag(
+  long                              lFlags
+)
+{
+    long                            lFlagsOld = GetWindowStyleFlag();
+
+    if (lFlags == lFlagsOld)
+        return;
+
+    //
+    // Update the internal variable
+    //
+    wxWindowBase::SetWindowStyleFlag(lFlags);
+
+    //
+    // Now update the Windows style as well if needed - and if the window had
+    // been already created
+    //
+    if (!GetHwnd())
+        return;
+
+    WXDWORD                         dwExstyle;
+    WXDWORD                         dwExstyleOld;
+    long                            lStyle = OS2GetStyle( lFlags
+                                                         ,&dwExstyle
+                                                        );
+    long                            lStyleOld = OS2GetStyle( lFlagsOld
+                                                            ,&dwExstyleOld
+                                                           );
+
+    if (lStyle != lStyleOld)
+    {
+        //
+        // Some flags (e.g. WS_VISIBLE or WS_DISABLED) should not be changed by
+        // this function so instead of simply setting the style to the new
+        // value we clear the bits which were set in styleOld but are set in
+        // the new one and set the ones which were not set before
+        //
+        long                        lStyleReal = ::WinQueryWindowULong(GetHwnd(), QWL_STYLE);
+
+        lStyleReal &= ~lStyleOld;
+        lStyleReal |= lStyle;
+
+        ::WinSetWindowULong(GetHwnd(), QWL_STYLE, lStyleReal);
+    }
+} // end of wxWindowOS2::SetWindowStyleFlag
+
+WXDWORD wxWindowOS2::OS2GetStyle(
+  long                              lFlags
+, WXDWORD*                          pdwExstyle
+) const
+{
+    WXDWORD                         dwStyle = 0L;
+
+    if (lFlags & wxCLIP_CHILDREN )
+        dwStyle |= WS_CLIPCHILDREN;
+
+    if (lFlags & wxCLIP_SIBLINGS )
+        dwStyle |= WS_CLIPSIBLINGS;
+
+    return dwStyle;
+} // end of wxWindowMSW::MSWGetStyle
+
+//
+// Make a Windows extended style from the given wxWindows window style
+//
+WXDWORD wxWindowOS2::MakeExtendedStyle(
+  long                              lStyle
+, bool                              bEliminateBorders
+)
+{
+   //
+   // Simply fill out with wxWindow extended styles.  We'll conjure
+   // something up in OS2Create and all window redrawing pieces later
+   //
+    WXDWORD                         dwStyle = 0;
+
+    if (lStyle & wxTRANSPARENT_WINDOW )
+        dwStyle |= wxTRANSPARENT_WINDOW;
+
+    if (!bEliminateBorders)
+    {
+        if (lStyle & wxSUNKEN_BORDER)
+            dwStyle |= wxSUNKEN_BORDER;
+        if (lStyle & wxDOUBLE_BORDER)
+            dwStyle |= wxDOUBLE_BORDER;
+        if (lStyle & wxRAISED_BORDER )
+            dwStyle |= wxRAISED_BORDER;
+        if (lStyle & wxSTATIC_BORDER)
+            dwStyle |= wxSTATIC_BORDER;
+    }
+    return dwStyle;
+} // end of wxWindowOS2::MakeExtendedStyle
+
+//
+// Determines whether simulated 3D effects or CTL3D should be used,
+// applying a default border style if required, and returning an extended
+// style to pass to OS2Create.
+//
+WXDWORD wxWindowOS2::Determine3DEffects(
+  WXDWORD                           dwDefaultBorderStyle
+, bool*                             pbWant3D
+) const
+{
+    WXDWORD                         dwStyle = 0L;
+
+    //
+    // Native PM does not have any specialize 3D effects like WIN32 does,
+    // so we have to try and invent them.
+    //
+
+    //
+    // If matches certain criteria, then assume no 3D effects
+    // unless specifically requested (dealt with in MakeExtendedStyle)
+    //
+    if (!GetParent()                    ||
+        !IsKindOf(CLASSINFO(wxControl)) ||
+        (m_windowStyle & wxNO_BORDER)
+       )
+    {
+        *pbWant3D = FALSE;
+        return MakeExtendedStyle(m_windowStyle, FALSE);
+    }
+
+    //
+    // 1) App can specify global 3D effects
+    //
+    *pbWant3D = wxTheApp->GetAuto3D();
+
+    //
+    // 2) If the parent is being drawn with user colours, or simple border
+    //    specified, switch effects off.
+    //
+    if (GetParent() &&
+        (GetParent()->GetWindowStyleFlag() & wxUSER_COLOURS) ||
+        (m_windowStyle & wxSIMPLE_BORDER)
+       )
+        *pbWant3D = FALSE;
+
+    //
+    // 3) Control can override this global setting by defining
+    //    a border style, e.g. wxSUNKEN_BORDER
+    //
+    if ((m_windowStyle & wxDOUBLE_BORDER) ||
+        (m_windowStyle & wxRAISED_BORDER) ||
+        (m_windowStyle & wxSTATIC_BORDER) ||
+        (m_windowStyle & wxSUNKEN_BORDER)
+       )
+        *pbWant3D = TRUE;
+
+    dwStyle = MakeExtendedStyle( m_windowStyle
+                                ,FALSE
+                               );
+
+    //
+    // If we want 3D, but haven't specified a border here,
+    // apply the default border style specified.
+    //
+    if (dwDefaultBorderStyle && (*pbWant3D) &&
+        !((m_windowStyle & wxDOUBLE_BORDER) ||
+          (m_windowStyle & wxRAISED_BORDER) ||
+          (m_windowStyle & wxSTATIC_BORDER) ||
+          (m_windowStyle & wxSIMPLE_BORDER)
+         )
+        )
+        dwStyle |= dwDefaultBorderStyle;
+    return dwStyle;
+} // end of wxWindowOS2::Determine3DEffects
+
+#if WXWIN_COMPATIBILITY
+void wxWindowOS2::OnCommand(
+  wxWindow&                         rWin
+, wxCommandEvent&                   rEvent
+)
+{
+    if (GetEventHandler()->ProcessEvent(rEvent))
+        return;
+    if (m_parent)
+        m_parent->GetEventHandler()->OnCommand( rWin
+                                               ,rEvent
+                                              );
+} // end of wxWindowOS2::OnCommand
+
+wxObject* wxWindowOS2::GetChild(
+  int                               nNumber
+) const
+{
+    //
+    // Return a pointer to the Nth object in the Panel
+    //
+    wxNode*                         pNode = GetChildren().First();
+    int                             n = nNumber;
+
+    while (pNode && n--)
+        pNode = pNode->Next();
+    if (pNode)
+    {
+        wxObject*                   pObj = (wxObject*)pNode->Data();
+        return(pObj);
+    }
+    else
+        return NULL;
+} // end of wxWindowOS2::GetChild
+
+#endif // WXWIN_COMPATIBILITY
+
+//
+// Setup background and foreground colours correctly
+//
+void wxWindowOS2::SetupColours()
+{
+    if ( GetParent() )
+        SetBackgroundColour(GetParent()->GetBackgroundColour());
+} // end of wxWindowOS2::SetupColours
+
+void wxWindowOS2::OnIdle(
+  wxIdleEvent&                      WXUNUSED(rEvent)
+)
+{
+    //
+    // Check if we need to send a LEAVE event
+    //
+    if (m_bMouseInWindow)
+    {
+        POINTL                      vPoint;
+
+        ::WinQueryPointerPos(HWND_DESKTOP, &vPoint);
+        if (::WinWindowFromPoint(HWND_DESKTOP, &vPoint, FALSE) != (HWND)GetHwnd())
+        {
+            //
+            // Generate a LEAVE event
+            //
+            m_bMouseInWindow = FALSE;
+
+            //
+            // Unfortunately the mouse button and keyboard state may have changed
+            // by the time the OnIdle function is called, so 'state' may be
+            // meaningless.
+            //
+            int                     nState = 0;
+
+            if (::WinGetKeyState(HWND_DESKTOP, VK_SHIFT) != 0)
+                nState |= VK_SHIFT;
+            if (::WinGetKeyState(HWND_DESKTOP, VK_CTRL) != 0);
+                nState |= VK_CTRL;
+
+            wxMouseEvent            rEvent(wxEVT_LEAVE_WINDOW);
+
+            InitMouseEvent( rEvent
+                           ,vPoint.x
+                           ,vPoint.y
+                           ,nState
+                          );
+            (void)GetEventHandler()->ProcessEvent(rEvent);
+        }
+    }
+    UpdateWindowUI();
+} // end of wxWindowOS2::OnIdle
+
+//
+// Set this window to be the child of 'parent'.
+//
+bool wxWindowOS2::Reparent(
+  wxWindow*                         pParent
+)
+{
+    if (!wxWindowBase::Reparent(pParent))
+        return FALSE;
+
+    HWND                            hWndChild = GetHwnd();
+    HWND                            hWndParent = GetParent() ? GetWinHwnd(GetParent()) : (HWND)0;
+
+    ::WinSetParent(hWndChild, hWndParent, TRUE);
+    return TRUE;
+} // end of wxWindowOS2::Reparent
+
+void wxWindowOS2::Clear()
+{
+    wxClientDC                      vDc((wxWindow*)this);
+    wxBrush                         vBrush( GetBackgroundColour()
+                                           ,wxSOLID
+                                          );
+
+    vDc.SetBackground(vBrush);
+    vDc.Clear();
+} // end of wxWindowOS2::Clear
+
+void wxWindowOS2::Update()
+{
+    ::WinUpdateWindow(GetHwnd());
+} // end of wxWindowOS2::Update
+
+void wxWindowOS2::Freeze()
+{
+   ::WinSendMsg(GetHwnd(), WM_VRNDISABLED, (MPARAM)0, (MPARAM)0);
+} // end of wxWindowOS2::Freeze
+
+void wxWindowOS2::Thaw()
+{
+   ::WinSendMsg(GetHwnd(), WM_VRNENABLED, (MPARAM)TRUE, (MPARAM)0);
+
+    //
+    // We need to refresh everything or otherwise he invalidated area is not
+    // repainted.
+    //
+    Refresh();
+} // end of wxWindowOS2::Thaw
+
+void wxWindowOS2::Refresh(
+  bool                              bEraseBack
+, const wxRect*                     pRect
+)
+{
+    HWND                            hWnd = GetHwnd();
+
+    if (hWnd)
+    {
+        if (pRect)
+        {
+            RECTL                   vOs2Rect;
+
+            vOs2Rect.xLeft   = pRect->x;
+            vOs2Rect.yTop    = pRect->y;
+            vOs2Rect.xRight  = pRect->x + pRect->width;
+            vOs2Rect.yBottom = pRect->y + pRect->height;
+
+            ::WinInvalidateRect(hWnd, &vOs2Rect, bEraseBack);
+        }
+        else
+            ::WinInvalidateRect(hWnd, NULL, bEraseBack);
+        if (m_hWndScrollBarHorz != NULLHANDLE)
+            ::WinInvalidateRect(m_hWndScrollBarHorz, NULL, TRUE);
+        if (m_hWndScrollBarVert != NULLHANDLE)
+            ::WinInvalidateRect(m_hWndScrollBarVert, NULL, TRUE);
+    }
+} // end of wxWindowOS2::Refresh
+
+// ---------------------------------------------------------------------------
+// drag and drop
+// ---------------------------------------------------------------------------
+
+#if wxUSE_DRAG_AND_DROP
+void wxWindowOS2::SetDropTarget(
+  wxDropTarget*                     pDropTarget
+)
+{
+    m_dropTarget = pDropTarget;
+} // end of wxWindowOS2::SetDropTarget
+#endif
+
+//
+// old style file-manager drag&drop support: we retain the old-style