]> git.saurik.com Git - wxWidgets.git/blobdiff - src/os2/window.cpp
Optimized sizers to not call CalcMin more often than neccessary
[wxWidgets.git] / src / os2 / window.cpp
index 4ab8890da9195b5c9b36bb49a192d794dcfe62fe..0c448ce6f5a53462b371a0857d4a20e1ad11ef47 100644 (file)
@@ -294,17 +294,11 @@ bool wxWindowOS2::OS2Command(
 
 void wxWindowOS2::Init()
 {
-    //
-    // Generic
-    //
-    InitBase();
-
     //
     // PM specific
     //
     m_bWinCaptured = FALSE;
 
-    m_isBeingDeleted        = FALSE;
     m_fnOldWndProc          = NULL;
     m_bUseCtl3D             = FALSE;
     m_bMouseInWindow        = FALSE;
@@ -362,9 +356,6 @@ wxWindowOS2::~wxWindowOS2()
 
     DestroyChildren();
 
-    if (m_parent)
-        m_parent->RemoveChild(this);
-
     if (m_hWnd)
     {
         if(!::WinDestroyWindow(GetHWND()))
@@ -418,8 +409,6 @@ bool wxWindowOS2::Create(
 
     if (pParent)
     {
-        int                         nTempy;
-
         pParent->AddChild(this);
         hParent = GetWinHwnd(pParent);
 
@@ -691,81 +680,11 @@ void wxWindowOS2::WarpPointer(
     ::WinSetPointerPos(HWND_DESKTOP, (LONG)nX, (LONG)(nY));
 } // end of wxWindowOS2::WarpPointer
 
-#if WXWIN_COMPATIBILITY
-void wxWindowOS2::OS2DeviceToLogical (float *x, float *y) const
-{
-}
-#endif // WXWIN_COMPATIBILITY
 
 // ---------------------------------------------------------------------------
 // scrolling stuff
 // ---------------------------------------------------------------------------
 
-#if WXWIN_COMPATIBILITY
-void wxWindowOS2::SetScrollRange(
-  int                               nOrient
-, int                               nRange
-, bool                              bRefresh
-)
-{
-    int                             nRange1 = nRange;
-    int                             nPageSize = GetScrollPage(nOrient);
-
-    if (nPpageSize > 1 && nRange > 0)
-    {
-        nRange1 += (nPageSize - 1);
-    }
-
-    if (nOrient == wxHORIZONTAL)
-    {
-        ::WinSendMsg(m_hWndScrollBarHorz, SBM_SETSCROLLBAR, (MPARAM)0, MPFROM2SHORT(0, (SHORT)nRange1));
-        ::WinSendMsg(m_hWndScrollBarHorz, SBM_SETTHUMBSIZE, MPFROM2SHORT((SHORT)nThumbVisible, (SHORT)nRange1), (MPARAM)0);
-    }
-    else
-    {
-        ::WinSendMsg(m_hWndScrollBarVert, SBM_SETSCROLLBAR, (MPARAM)0, MPFROM2SHORT(0, (SHORT)nRange1));
-        ::WinSendMsg(m_hWndScrollBarVert, SBM_SETTHUMBSIZE, MPFROM2SHORT((SHORT)nThumbVisible, (SHORT)nRange1), (MPARAM)0);
-    }
-} // end of wxWindowOS2::SetScrollRange
-
-void wxWindowOS2::SetScrollPage(
-  int                               nOrient
-, int                               nPage
-, bool                              bRefresh
-)
-{
-    if (nOrient == wxHORIZONTAL )
-        m_nXThumbSize = nPage;
-    else
-        m_nYThumbSize = nPage;
-} // end of wxWindowOS2::SetScrollPage
-
-int wxWindowOS2::OldGetScrollRange(
-  int                               nOrient
-) const
-{
-    MRESULT                         mRc;
-    HWND                            hWnd = GetHwnd();
-
-    if (hWnd)
-    {
-        mRc = WinSendMsg(hWnd, SBM_QUERYRANGE, (MPARAM)0L, (MPARAM)0L);
-        return(SHORT2FROMMR(mRc));
-     }
-     return 0;
-} // end of wxWindowOS2::OldGetScrollRange
-
-int  wxWindowOS2::GetScrollPage(
-  int                               nOrient
-) const
-{
-    if (nOrient == wxHORIZONTAL)
-        return m_nXThumbSize;
-    else
-        return m_nYThumbSize;
-} // end of wxWindowOS2::GetScrollPage
-#endif // WXWIN_COMPATIBILITY
-
 int  wxWindowOS2::GetScrollPos(
   int                               nOrient
 ) const
@@ -828,7 +747,6 @@ void wxWindowOS2::SetScrollbar(
     ULONG                           ulStyle = WS_VISIBLE | WS_SYNCPAINT;
     SWP                             vSwp;
     SWP                             vSwpOwner;
-    RECTL                           vRect;
     HWND                            hWndParent;
     HWND                            hWndClient;
     wxWindow*                       pParent = GetParent();
@@ -1020,9 +938,6 @@ void wxWindowOS2::ScrollWindow(
 )
 {
     RECTL                           vRect;
-    RECTL                           vRectHorz;
-    RECTL                           vRectVert;
-    RECTL                           vRectChild;
 
     if (pRect)
     {
@@ -1172,7 +1087,7 @@ WXDWORD wxWindowOS2::OS2GetStyle(
 } // end of wxWindowMSW::MSWGetStyle
 
 //
-// Make a Windows extended style from the given wxWindows window style
+// Make a Windows extended style from the given wxWidgets window style
 //
 WXDWORD wxWindowOS2::MakeExtendedStyle(
   long                              lStyle
@@ -1202,118 +1117,6 @@ WXDWORD wxWindowOS2::MakeExtendedStyle(
     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
 //
@@ -1349,10 +1152,10 @@ void wxWindowOS2::OnIdle(
             //
             int                     nState = 0;
 
-            if (::WinGetKeyState(HWND_DESKTOP, VK_SHIFT) != 0)
-                nState |= VK_SHIFT;
-            if (::WinGetKeyState(HWND_DESKTOP, VK_CTRL) != 0);
-                nState |= VK_CTRL;
+            if (IsShiftDown())
+                nState |= KC_SHIFT;
+            if (IsCtrlDown())
+                nState |= KC_CTRL;
 
             wxMouseEvent            rEvent(wxEVT_LEAVE_WINDOW);
 
@@ -1364,7 +1167,8 @@ void wxWindowOS2::OnIdle(
             (void)GetEventHandler()->ProcessEvent(rEvent);
         }
     }
-    UpdateWindowUI();
+    if (wxUpdateUIEvent::CanUpdate(this))
+        UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
 } // end of wxWindowOS2::OnIdle
 
 //
@@ -1384,17 +1188,6 @@ bool wxWindowOS2::Reparent(
     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());
@@ -1430,9 +1223,9 @@ void wxWindowOS2::Refresh(
             RECTL                   vOs2Rect;
 
             vOs2Rect.xLeft   = pRect->x;
-            vOs2Rect.yTop    = pRect->y;
+            vOs2Rect.yBottom = pRect->y;
             vOs2Rect.xRight  = pRect->x + pRect->width;
-            vOs2Rect.yBottom = pRect->y + pRect->height;
+            vOs2Rect.yTop    = pRect->y + pRect->height;
 
             ::WinInvalidateRect(hWnd, &vOs2Rect, bEraseBack);
         }
@@ -1454,14 +1247,7 @@ void wxWindowOS2::SetDropTarget(
   wxDropTarget*                     pDropTarget
 )
 {
-    if (m_dropTarget != 0)
-    {
-        m_dropTarget->Revoke(m_hWnd);
-        delete m_dropTarget;
-    }
     m_dropTarget = pDropTarget;
-    if (m_dropTarget != 0)
-        m_dropTarget->Register(m_hWnd);
 } // end of wxWindowOS2::SetDropTarget
 #endif
 
@@ -1685,7 +1471,6 @@ void wxWindowOS2::DoMoveWindow(
 )
 {
     RECTL                           vRect;
-    HWND                            hParent;
     wxWindow*                       pParent = GetParent();
 
     if (pParent && !IsKindOf(CLASSINFO(wxDialog)))
@@ -1721,7 +1506,6 @@ void wxWindowOS2::DoMoveWindow(
         int                         nHeightFrameDelta = 0;
         int                         nHeightFrame = 0;
         int                         nWidthFrame = 0;
-        ULONG                       ulFLag = SWP_MOVE;
         wxFrame*                    pFrame;
 
         pFrame = wxDynamicCast(this, wxFrame);
@@ -1876,7 +1660,6 @@ void wxWindowOS2::DoSetSize(
     // Must convert Y coords to test for equality under OS/2
     //
     int                             nY2 = nY;
-    wxWindow*                       pParent = (wxWindow*)GetParent();
 
     if (nX == nCurrentX && nY2 == nCurrentY &&
         nWidth == nCurrentWidth && nHeight == nCurrentHeight)
@@ -2051,9 +1834,8 @@ void wxWindowOS2::GetTextExtent(
     int                             i;
     int                             l;
     FONTMETRICS                     vFM; // metrics structure
-    BOOL                            bRc;
+    BOOL                            bRc = FALSE;
     char*                           pStr;
-    ERRORID                         vErrorCode; // last error id code
     HPS                             hPS;
 
 
@@ -2154,89 +1936,11 @@ bool wxWindowOS2::IsMouseInWindow() const
     return hWnd != NULL;
 } // end of wxWindowOS2::IsMouseInWindow
 
-#if wxUSE_CARET && WXWIN_COMPATIBILITY
-// ---------------------------------------------------------------------------
-// Caret manipulation
-// ---------------------------------------------------------------------------
-
-void wxWindowOS2::CreateCaret(
-  int                               nWidth
-, int                               nHeight
-)
-{
-    SetCaret(new wxCaret( this
-                         ,nWidth
-                         ,nHeight
-                        ));
-} // end of wxWindowOS2::CreateCaret
-
-void wxWindowOS2::CreateCaret(
-  const wxBitmap*                   pBitmap
-)
-{
-    wxFAIL_MSG("not implemented");
-} // end of wxWindowOS2::CreateCaret
-
-void wxWindowOS2::ShowCaret(
-  bool                              bShow
-)
-{
-    wxCHECK_RET( m_caret, "no caret to show" );
-
-    m_caret->Show(bShow);
-} // end of wxWindowOS2::ShowCaret
-
-void wxWindowOS2::DestroyCaret()
-{
-    SetCaret(NULL);
-} // end of wxWindowOS2::DestroyCaret
-
-void wxWindowOS2::SetCaretPos(
-  int                               nX
-, int                               nY)
-{
-    wxCHECK_RET( m_caret, "no caret to move" );
-
-    m_caret->Move( nX
-                  ,nY
-                 );
-} // end of wxWindowOS2::SetCaretPos
-
-void wxWindowOS2::GetCaretPos(
-  int*                              pX
-, int*                              pY
-) const
-{
-    wxCHECK_RET( m_caret, "no caret to get position of" );
-
-    m_caret->GetPosition( pX
-                         ,pY
-                        );
-} // end of wxWindowOS2::GetCaretPos
-
-#endif //wxUSE_CARET
 
 // ---------------------------------------------------------------------------
 // popup menu
 // ---------------------------------------------------------------------------
 //
-#if wxUSE_MENUS_NATIVE
-static void wxYieldForCommandsOnly()
-{
-    //
-    // Peek all WM_COMMANDs (it will always return WM_QUIT too but we don't
-    // want to process it here)
-    //
-    QMSG                            vMsg;
-
-    while (::WinPeekMsg(vHabmain, &vMsg, (HWND)0, WM_COMMAND, WM_COMMAND, PM_REMOVE)
-           && vMsg.msg != WM_QUIT)
-    {
-        wxTheApp->DoMessage((WXMSG*)&vMsg);
-    }
-}
-#endif // wxUSE_MENUS_NATIVE
-
 #if wxUSE_MENUS_NATIVE
 bool wxWindowOS2::DoPopupMenu(
   wxMenu*                           pMenu
@@ -2251,10 +1955,18 @@ bool wxWindowOS2::DoPopupMenu(
 
     pMenu->SetInvokingWindow(this);
     pMenu->UpdateUI();
-
-    DoClientToScreen( &nX
-                     ,&nY
-                    );
+    
+    if ( x == -1 && y == -1 )
+    {
+        wxPoint mouse = wxGetMousePosition();
+        nX = mouse.x; nY = mouse.y;
+    }
+    else
+    {
+        DoClientToScreen( &nX
+                         ,&nY
+                        );
+    }
     wxCurrentPopupMenu = pMenu;
 
     ::WinPopupMenu( hWndParent
@@ -2269,7 +1981,6 @@ bool wxWindowOS2::DoPopupMenu(
     while(bIsWaiting)
     {
         QMSG                            vMsg;
-        BOOL                            bRc = ::WinGetMsg(vHabmain, &vMsg, HWND(NULL), 0, 0);
 
         if (vMsg.msg == WM_MENUEND || vMsg.msg == WM_COMMAND)
         {
@@ -2566,7 +2277,7 @@ void wxWindowOS2::UnpackMenuSelect(
 } // end of wxWindowOS2::UnpackMenuSelect
 
 // ---------------------------------------------------------------------------
-// Main wxWindows window proc and the window proc for wxWindow
+// Main wxWidgets window proc and the window proc for wxWindow
 // ---------------------------------------------------------------------------
 
 //
@@ -2585,14 +2296,6 @@ MRESULT EXPENTRY wxWndProc(
 , MPARAM                            lParam
 )
 {
-    //
-    // Trace all ulMsgs - useful for the debugging
-    //
-#ifdef __WXDEBUG__
-    wxLogTrace(wxTraceMessages, wxT("Processing %s(wParam=%8lx, lParam=%8lx)"),
-               wxGetMessageName(ulMsg), wParam, lParam);
-#endif // __WXDEBUG__
-
     wxWindowOS2*                    pWnd = wxFindWinFromHandle((WXHWND)hWnd);
 
     //
@@ -2814,7 +2517,7 @@ MRESULT wxWindowOS2::OS2WindowProc(
                     bProcessed = HandleMouseEvent( uMsg
                                                   ,nX
                                                   ,nY
-                                                  ,(WXUINT)SHORT1FROMMP(wParam)
+                                                  ,(WXUINT)SHORT2FROMMP(lParam)
                                                  );
                 }
                 else
@@ -2831,7 +2534,7 @@ MRESULT wxWindowOS2::OS2WindowProc(
                     bProcessed = pWin->HandleMouseEvent( uMsg
                                                         ,nX
                                                         ,nY
-                                                        ,(WXUINT)SHORT1FROMMP(wParam)
+                                                        ,(WXUINT)SHORT2FROMMP(lParam)
                                                        );
                 }
             }
@@ -3059,7 +2762,7 @@ MRESULT wxWindowOS2::OS2WindowProc(
                             break;
                         }
                         //
-                        // Simulate a WM_COMMAND here, as wxWindows expects all control
+                        // Simulate a WM_COMMAND here, as wxWidgets expects all control
                         // button clicks to generate WM_COMMAND msgs, not WM_CONTROL
                         //
                         if (pWin->IsKindOf(CLASSINFO(wxRadioBox)))
@@ -3119,7 +2822,7 @@ MRESULT wxWindowOS2::OS2WindowProc(
                             break;
                         }
                         //
-                        // Simulate a WM_COMMAND here, as wxWindows expects all control
+                        // Simulate a WM_COMMAND here, as wxWidgets expects all control
                         // button clicks to generate WM_COMMAND msgs, not WM_CONTROL
                         //
                         if (pWin->IsKindOf(CLASSINFO(wxListBox)))
@@ -3273,36 +2976,6 @@ MRESULT wxWindowOS2::OS2WindowProc(
     return mResult;
 } // end of wxWindowOS2::OS2WindowProc
 
-#ifndef __EMX__
-// clashes with wxDlgProc in toplevel.cpp?
-//
-// Dialog window proc
-//
-MRESULT wxDlgProc(
-  HWND                              WXUNUSED(hWnd)
-, UINT                              uMsg
-, MPARAM                            WXUNUSED(wParam)
-, MPARAM                            WXUNUSED(lParam))
-{
-    if (uMsg == WM_INITDLG)
-    {
-        //
-        // For this message, returning TRUE tells system to set focus to the
-        // first control in the dialog box
-        //
-        return (MRESULT)TRUE;
-    }
-    else
-    {
-        //
-        // For all the other ones, FALSE means that we didn't process the
-        // message
-        //
-        return (MRESULT)0;
-    }
-} // end of wxDlgProc
-#endif
-
 wxWindow* wxFindWinFromHandle(
   WXHWND                            hWnd
 )
@@ -3311,7 +2984,7 @@ wxWindow* wxFindWinFromHandle(
 
     if (!pNode)
         return NULL;
-    return (wxWindow *)pNode->Data();
+    return (wxWindow *)pNode->GetData();
 } // end of wxFindWinFromHandle
 
 void wxAssociateWinWithHandle(
@@ -3418,9 +3091,6 @@ bool wxWindowOS2::OS2Create(
     int                             nY      = 0L;
     int                             nWidth  = 0L;
     int                             nHeight = 0L;
-    wxWindow*                       pParent = GetParent();
-    HWND                            hWnd = NULLHANDLE;
-    HWND                            hParent;
     long                            lControlId = 0L;
     wxWindowCreationHook            vHook(this);
     wxString                        sClassName((wxChar*)zClass);
@@ -3446,7 +3116,7 @@ bool wxWindowOS2::OS2Create(
     // which is the same but without CS_[HV]REDRAW class styles so using it
     // ensures that the window is not fully repainted on each resize
     //
-    if (GetWindowStyleFlag() & wxNO_FULL_REPAINT_ON_RESIZE)
+    if (!HasFlag(wxFULL_REPAINT_ON_RESIZE))
     {
         sClassName += wxT("NR");
     }
@@ -3485,7 +3155,7 @@ bool wxWindowOS2::OS2Create(
     {
         vError = ::WinGetLastError(vHabmain);
         sError = wxPMErrorToStr(vError);
-        wxLogError("Error creating frame. Error: %s\n", sError);
+        wxLogError("Error creating frame. Error: %s\n", sError.c_str());
         return FALSE;
     }
     SetSize( nX
@@ -3519,7 +3189,7 @@ bool wxWindowOS2::HandleCreate(
 bool wxWindowOS2::HandleDestroy()
 {
     wxWindowDestroyEvent            vEvent((wxWindow*)this);
-
+    vEvent.SetId(GetId());
     (void)GetEventHandler()->ProcessEvent(vEvent);
 
     //
@@ -3528,7 +3198,6 @@ bool wxWindowOS2::HandleDestroy()
 #if wxUSE_DRAG_AND_DROP
     if (m_dropTarget != NULL)
     {
-        m_dropTarget->Revoke(m_hWnd);
         delete m_dropTarget;
         m_dropTarget = NULL;
     }
@@ -3725,7 +3394,7 @@ bool wxWindowOS2::OS2OnDrawItem(
                   );
         vDc.SetHPS(pMeasureStruct->hps);
         //
-        // Load the wxWindows Pallete and set to RGB mode
+        // Load the wxWidgets Pallete and set to RGB mode
         //
         if (!::GpiCreateLogColorTable( pMeasureStruct->hps
                                       ,0L
@@ -3737,7 +3406,7 @@ bool wxWindowOS2::OS2OnDrawItem(
         {
             vError = ::WinGetLastError(vHabmain);
             sError = wxPMErrorToStr(vError);
-            wxLogError("Unable to set current color table. Error: %s\n", sError);
+            wxLogError("Unable to set current color table. Error: %s\n", sError.c_str());
         }
         //
         // Set the color table to RGB mode
@@ -3752,7 +3421,7 @@ bool wxWindowOS2::OS2OnDrawItem(
         {
             vError = ::WinGetLastError(vHabmain);
             sError = wxPMErrorToStr(vError);
-            wxLogError("Unable to set current color table. Error: %s\n", sError);
+            wxLogError("Unable to set current color table. Error: %s\n", sError.c_str());
         }
 
         wxCHECK( pMenuItem->IsKindOf(CLASSINFO(wxMenuItem)), FALSE );
@@ -3961,14 +3630,14 @@ void wxWindowOS2::OnSysColourChanged(
   wxSysColourChangedEvent&          rEvent
 )
 {
-    wxNode*                         pNode = GetChildren().First();
+    wxWindowListNode*               pNode = GetChildren().GetFirst();
 
     while (pNode)
     {
         //
         // Only propagate to non-top-level windows
         //
-        wxWindow*                   pWin = (wxWindow *)pNode->Data();
+        wxWindow*                   pWin = (wxWindow *)pNode->GetData();
 
         if (pWin->GetParent())
         {
@@ -3977,7 +3646,7 @@ void wxWindowOS2::OnSysColourChanged(
             rEvent.m_eventObject = pWin;
             pWin->GetEventHandler()->ProcessEvent(vEvent);
         }
-        pNode = pNode->Next();
+        pNode = pNode->GetNext();
     }
 } // end of wxWindowOS2::OnSysColourChanged
 
@@ -3985,12 +3654,26 @@ void wxWindowOS2::OnSysColourChanged(
 // painting
 // ---------------------------------------------------------------------------
 
+void wxWindow::OnPaint (
+  wxPaintEvent&                     rEvent
+)
+{
+    HDC                             hDC = (HDC)wxPaintDC::FindDCInCache((wxWindow*) rEvent.GetEventObject());
+
+    if (hDC != 0)
+    {
+        OS2DefWindowProc( (WXUINT)WM_PAINT
+                         ,(WXWPARAM)hDC
+                         ,(WXLPARAM)0
+                        );
+    }
+} // end of wxWindow::OnPaint
+
 bool wxWindowOS2::HandlePaint()
 {
     HRGN                            hRgn;
     wxPaintEvent                    vEvent(m_windowId);
     HPS                             hPS;
-    RECTL                           vRect;
     bool                            bProcessed;
 
     // Create empty region
@@ -4022,8 +3705,6 @@ bool wxWindowOS2::HandlePaint()
         //
         HPS                         hPS;
         RECTL                       vRect;
-        wxFrame*                    pFrame;
-        wxWindow*                   pParent;
 
         hPS = ::WinBeginPaint( GetHwnd()
                               ,NULLHANDLE
@@ -4083,8 +3764,6 @@ bool wxWindowOS2::HandlePaint()
         //
         HPS                         hPS;
         RECTL                       vRect;
-        wxFrame*                    pFrame;
-        wxWindow*                   pParent;
 
         hPS = ::WinBeginPaint( GetHwnd()
                               ,NULLHANDLE
@@ -4204,7 +3883,6 @@ bool wxWindowOS2::HandleGetMinMaxInfo(
   PSWP                              pSwp
 )
 {
-    bool                            bRc = FALSE;
     POINTL                          vPoint;
 
     switch(pSwp->fl)
@@ -4289,13 +3967,20 @@ void wxWindowOS2::InitMouseEvent(
 , WXUINT                            uFlags
 )
 {
+    int                                 nHeight;
+    DoGetSize(0, &nHeight);
     rEvent.m_x           = nX;
-    rEvent.m_y           = nY;
-    rEvent.m_shiftDown   = ((uFlags & VK_SHIFT) != 0);
-    rEvent.m_controlDown = ((uFlags & VK_CTRL) != 0);
-    rEvent.m_leftDown    = ((uFlags & VK_BUTTON1) != 0);
-    rEvent.m_middleDown  = ((uFlags & VK_BUTTON3) != 0);
-    rEvent.m_rightDown   = ((uFlags & VK_BUTTON2) != 0);
+    // Convert to wxWidgets standard coordinate system!
+    rEvent.m_y           = nHeight - nY;
+    rEvent.m_shiftDown   = ((uFlags & KC_SHIFT) != 0);
+    rEvent.m_controlDown = ((uFlags & KC_CTRL) != 0);
+    rEvent.m_altDown     = ((uFlags & KC_ALT) != 0);
+    rEvent.m_leftDown    = (::WinGetKeyState(HWND_DESKTOP, VK_BUTTON1) &
+                           0x8000) != 0;
+    rEvent.m_middleDown  = (::WinGetKeyState(HWND_DESKTOP, VK_BUTTON3) &
+                           0x8000) != 0;
+    rEvent.m_rightDown   = (::WinGetKeyState(HWND_DESKTOP, VK_BUTTON2) &
+                           0x8000) != 0;
     rEvent.SetTimestamp(s_currentMsg.time);
     rEvent.m_eventObject = this;
     rEvent.SetId(GetId());
@@ -4347,7 +4032,6 @@ bool wxWindowOS2::HandleMouseEvent(
     bProcessed = GetEventHandler()->ProcessEvent(vEvent);
     if (!bProcessed)
     {
-        HPOINTER                    hPtr = ::WinQuerySysPointer(HWND_DESKTOP, SPTR_WAIT, FALSE);
         HPOINTER                    hCursor = (HPOINTER)GetCursor().GetHCURSOR();
 
         if (hCursor != NULLHANDLE)
@@ -4712,7 +4396,7 @@ void wxWindowOS2::MoveChildren(
 //
 //  Getting the Y position for a window, like a control, is a real
 //  pain.  There are three sitatuions we must deal with in determining
-//  the OS2 to wxWindows Y coordinate.
+//  the OS2 to wxWidgets Y coordinate.
 //
 //  1)  The controls are created in a dialog.
 //      This is the easiest since a dialog is created with its original
@@ -4744,8 +4428,6 @@ int wxWindowOS2::GetOS2ParentHeight(
   wxWindowOS2*               pParent
 )
 {
-    wxWindowOS2*             pGrandParent = NULL;
-
     //
     // Case 1
     //
@@ -5226,7 +4908,7 @@ const char* wxGetMessageName(
         // Beginning of user defined messages
         case 0x1000: return "WM_USER";
 
-        // wxWindows user defined types
+        // wxWidgets user defined types
 
         // listview
         // case 0x1000 + 0: return "LVM_GETBKCOLOR";
@@ -5541,7 +5223,6 @@ wxWindowOS2* FindWindowForMouseEvent(
     POINTL                          vPoint;
     BOOL                            rcEnabled = FALSE;
     BOOL                            rcVisible = FALSE;
-    HWND                            hWndDesktop = HWND_DESKTOP;
 
     ::WinQueryPointerPos(HWND_DESKTOP, &vPoint);
     hWndUnderMouse = ::WinWindowFromPoint(HWND_DESKTOP, &vPoint, TRUE);
@@ -5552,7 +5233,6 @@ wxWindowOS2* FindWindowForMouseEvent(
         if (pWinUnderMouse)
         {
             wxWindowList::Node*     pCurrent = pWinUnderMouse->GetChildren().GetFirst();
-            wxWindow*               pChild = NULL;
             wxWindow*               pGrandChild = NULL;
             RECTL                   vRect;
             POINTL                  vPoint2;