diff --git a/include/wx/window.h b/include/wx/window.h
index aeae05a689..a6bdc327d4 100644
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -1004,14 +1004,21 @@ public:
     void SetToolTip( const wxString &tip );
         // attach a tooltip to the window
     void SetToolTip( wxToolTip *tip ) { DoSetToolTip(tip); }
+#if wxABI_VERSION >= 20809
+        // more readable synonym for SetToolTip(NULL)
+    void UnsetToolTip() { SetToolTip(NULL); }
+#endif // wxABI_VERSION >= 2.8.9
         // get the associated tooltip or NULL if none
     wxToolTip* GetToolTip() const { return m_tooltip; }
     wxString GetToolTipText() const ;
-#else
+#else // !wxUSE_TOOLTIPS
         // make it much easier to compile apps in an environment
         // that doesn't support tooltips, such as PocketPC
-    inline void SetToolTip( const wxString & WXUNUSED(tip) ) {}
-#endif // wxUSE_TOOLTIPS
+    void SetToolTip( const wxString & WXUNUSED(tip) ) {}
+#if wxABI_VERSION >= 20809
+    void UnsetToolTip() { }
+#endif // wxABI_VERSION >= 2.8.9
+#endif // wxUSE_TOOLTIPS/!wxUSE_TOOLTIPS
 
     // drag and drop
     // -------------
diff --git a/src/aui/auibar.cpp b/src/aui/auibar.cpp
index f54ff793a0..554a34eef3 100644
--- a/src/aui/auibar.cpp
+++ b/src/aui/auibar.cpp
@@ -37,7 +37,9 @@
 #include "wx/aui/framemanager.h"
 
 #ifdef __WXMAC__
-#include "wx/mac/carbon/private.h"
+#include "wx/osx/private.h"
+// for themeing support
+#include <Carbon/Carbon.h>
 #endif
 
 #include "wx/arrimpl.cpp"
@@ -110,24 +112,22 @@ static wxBitmap MakeDisabledBitmap(wxBitmap& bmp)
 static wxColor GetBaseColor()
 {
 
-#ifdef __WXMAC__
-    wxBrush toolbarbrush;
-    toolbarbrush.MacSetTheme( kThemeBrushToolbarBackground );
-    wxColor base_color = toolbarbrush.GetColour();
+#if defined( __WXMAC__ ) && wxOSX_USE_COCOA_OR_CARBON
+    wxColor base_colour = wxColour( wxMacCreateCGColorFromHITheme(kThemeBrushToolbarBackground));
 #else
-    wxColor base_color = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
+    wxColor base_colour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 #endif
 
     // the base_colour is too pale to use as our base colour,
     // so darken it a bit --
-    if ((255-base_color.Red()) +
-        (255-base_color.Green()) +
-        (255-base_color.Blue()) < 60)
+    if ((255-base_colour.Red()) +
+        (255-base_colour.Green()) +
+        (255-base_colour.Blue()) < 60)
     {
-        base_color = wxAuiStepColour(base_color, 92);
+        base_colour = wxAuiStepColour(base_colour, 92);
     }
 
-    return base_color;
+    return base_colour;
 }
 
 
@@ -165,7 +165,6 @@ const wxColour DISABLED_TEXT_COLOR(DISABLED_TEXT_GREY_HUE,
                                    DISABLED_TEXT_GREY_HUE,
                                    DISABLED_TEXT_GREY_HUE);
 
-
 wxAuiDefaultToolBarArt::wxAuiDefaultToolBarArt()
 {
     m_base_colour = GetBaseColor();
@@ -210,7 +209,7 @@ wxAuiDefaultToolBarArt::~wxAuiDefaultToolBarArt()
 
 wxAuiToolBarArt* wxAuiDefaultToolBarArt::Clone()
 {
-    return wx_static_cast(wxAuiToolBarArt*, new wxAuiDefaultToolBarArt);
+    return static_cast<wxAuiToolBarArt*>(new wxAuiDefaultToolBarArt);
 }
 
 void wxAuiDefaultToolBarArt::SetFlags(unsigned int flags)
@@ -302,7 +301,7 @@ void wxAuiDefaultToolBarArt::DrawButton(
         text_x = rect.x + (rect.width/2) - (text_width/2) + 1;
         text_y = rect.y + rect.height - text_height - 1;
     }
-     else if (m_text_orientation == wxAUI_TBTOOL_TEXT_RIGHT)
+    else if (m_text_orientation == wxAUI_TBTOOL_TEXT_RIGHT)
     {
         bmp_x = rect.x + 3;
 
@@ -325,7 +324,7 @@ void wxAuiDefaultToolBarArt::DrawButton(
             dc.SetBrush(wxBrush(wxAuiStepColour(m_highlight_colour, 150)));
             dc.DrawRectangle(rect);
         }
-         else if ((item.GetState() & wxAUI_BUTTON_STATE_HOVER) || item.IsSticky())
+        else if ((item.GetState() & wxAUI_BUTTON_STATE_HOVER) || item.IsSticky())
         {
             dc.SetPen(wxPen(m_highlight_colour));
             dc.SetBrush(wxBrush(wxAuiStepColour(m_highlight_colour, 170)));
@@ -337,7 +336,7 @@ void wxAuiDefaultToolBarArt::DrawButton(
 
             dc.DrawRectangle(rect);
         }
-         else if (item.GetState() & wxAUI_BUTTON_STATE_CHECKED)
+        else if (item.GetState() & wxAUI_BUTTON_STATE_CHECKED)
         {
             // it's important to put this code in an else statment after the
             // hover, otherwise hovers won't draw properly for checked items
@@ -350,7 +349,7 @@ void wxAuiDefaultToolBarArt::DrawButton(
     wxBitmap bmp;
     if (item.GetState() & wxAUI_BUTTON_STATE_DISABLED)
         bmp = item.GetDisabledBitmap();
-         else
+    else
         bmp = item.GetBitmap();
 
     if (!bmp.IsOk())
@@ -363,7 +362,7 @@ void wxAuiDefaultToolBarArt::DrawButton(
     if (item.GetState() & wxAUI_BUTTON_STATE_DISABLED)
         dc.SetTextForeground(DISABLED_TEXT_COLOR);
 
-    if ((m_flags & wxAUI_TB_TEXT) && item.GetLabel().Length() > 0)
+    if ( (m_flags & wxAUI_TB_TEXT) && !item.GetLabel().empty() )
     {
         dc.DrawText(item.GetLabel(), text_x, text_y);
     }
@@ -424,7 +423,7 @@ void wxAuiDefaultToolBarArt::DrawDropDownButton(
         text_x = rect.x + (rect.width/2) - (text_width/2) + 1;
         text_y = rect.y + rect.height - text_height - 1;
     }
-     else if (m_text_orientation == wxAUI_TBTOOL_TEXT_RIGHT)
+    else if (m_text_orientation == wxAUI_TBTOOL_TEXT_RIGHT)
     {
         bmp_x = rect.x + 3;
 
@@ -446,8 +445,8 @@ void wxAuiDefaultToolBarArt::DrawDropDownButton(
         dc.DrawRectangle(button_rect);
         dc.DrawRectangle(dropdown_rect);
     }
-     else if (item.GetState() & wxAUI_BUTTON_STATE_HOVER ||
-              item.IsSticky())
+    else if (item.GetState() & wxAUI_BUTTON_STATE_HOVER ||
+             item.IsSticky())
     {
         dc.SetPen(wxPen(m_highlight_colour));
         dc.SetBrush(wxBrush(wxAuiStepColour(m_highlight_colour, 170)));
@@ -462,7 +461,7 @@ void wxAuiDefaultToolBarArt::DrawDropDownButton(
         bmp = item.GetDisabledBitmap();
         dropbmp = m_disabled_button_dropdown_bmp;
     }
-     else
+    else
     {
         bmp = item.GetBitmap();
         dropbmp = m_button_dropdown_bmp;
@@ -479,7 +478,7 @@ void wxAuiDefaultToolBarArt::DrawDropDownButton(
     if (item.GetState() & wxAUI_BUTTON_STATE_DISABLED)
         dc.SetTextForeground(DISABLED_TEXT_COLOR);
 
-    if ((m_flags & wxAUI_TB_TEXT) && item.GetLabel().Length() > 0)
+    if ( (m_flags & wxAUI_TB_TEXT) && !item.GetLabel().empty() )
     {
         dc.DrawText(item.GetLabel(), text_x, text_y);
     }
@@ -521,7 +520,7 @@ void wxAuiDefaultToolBarArt::DrawControlLabel(
     text_x = rect.x + (rect.width/2) - (text_width/2) + 1;
     text_y = rect.y + rect.height - text_height - 1;
 
-    if ((m_flags & wxAUI_TB_TEXT) && item.GetLabel().Length() > 0)
+    if ( (m_flags & wxAUI_TB_TEXT) && !item.GetLabel().empty() )
     {
         dc.DrawText(item.GetLabel(), text_x, text_y);
     }
@@ -565,18 +564,19 @@ wxSize wxAuiDefaultToolBarArt::GetToolSize(
             dc.GetTextExtent(wxT("ABCDHgj"), &tx, &ty);
             height += ty;
 
-            if (item.GetLabel().Length() > 0)
+            if ( !item.GetLabel().empty() )
             {
                 dc.GetTextExtent(item.GetLabel(), &tx, &ty);
                 width = wxMax(width, tx+6);
             }
         }
-         else if (m_text_orientation == wxAUI_TBTOOL_TEXT_RIGHT && item.GetLabel().Length() > 0)
+        else if ( m_text_orientation == wxAUI_TBTOOL_TEXT_RIGHT &&
+                  !item.GetLabel().empty() )
         {
             width += 3; // space between left border and bitmap
             width += 3; // space between bitmap and text
 
-            if (item.GetLabel().Length() > 0)
+            if ( !item.GetLabel().empty() )
             {
                 dc.GetTextExtent(item.GetLabel(), &tx, &ty);
                 width += tx;
@@ -611,7 +611,7 @@ void wxAuiDefaultToolBarArt::DrawSeparator(
         rect.y += (rect.height/2) - (new_height/2);
         rect.height = new_height;
     }
-     else
+    else
     {
         rect.y += (rect.height/2);
         rect.height = 1;
@@ -641,7 +641,7 @@ void wxAuiDefaultToolBarArt::DrawGripper(wxDC& dc,
             if (x > rect.GetWidth()-5)
                 break;
         }
-         else
+        else
         {
             x = rect.x + 3;
             y = rect.y + (i*4) + 5;
@@ -746,7 +746,7 @@ int wxAuiDefaultToolBarArt::ShowDropDown(wxWindow* wnd,
             menuPopup.Append(m);
             items_added++;
         }
-         else if (item.GetKind() == wxITEM_SEPARATOR)
+        else if (item.GetKind() == wxITEM_SEPARATOR)
         {
             if (items_added > 0)
                 menuPopup.AppendSeparator();
@@ -850,18 +850,18 @@ void wxAuiToolBar::SetWindowStyleFlag(long style)
 
     if (m_style & wxAUI_TB_GRIPPER)
         m_gripper_visible = true;
-         else
+    else
         m_gripper_visible = false;
 
 
     if (m_style & wxAUI_TB_OVERFLOW)
         m_overflow_visible = true;
-         else
+    else
         m_overflow_visible = false;
 
     if (style & wxAUI_TB_HORZ_LAYOUT)
         SetToolTextOrientation(wxAUI_TBTOOL_TEXT_RIGHT);
-         else
+    else
         SetToolTextOrientation(wxAUI_TBTOOL_TEXT_BOTTOM);
 }
 
@@ -1217,7 +1217,7 @@ int wxAuiToolBar::GetToolSeparation() const
 {
     if (m_art)
         return m_art->GetElementSize(wxAUI_TBART_SEPARATOR_SIZE);
-         else
+    else
         return 5;
 }
 
@@ -1437,7 +1437,7 @@ void wxAuiToolBar::RefreshOverflowState()
     {
         if (::wxGetMouseState().LeftDown())
             overflow_state = wxAUI_BUTTON_STATE_PRESSED;
-             else
+        else
             overflow_state = wxAUI_BUTTON_STATE_HOVER;
     }
 
@@ -1462,7 +1462,7 @@ void wxAuiToolBar::ToggleTool(int tool_id, bool state)
 
         if (state == true)
             tool->state |= wxAUI_BUTTON_STATE_CHECKED;
-         else
+        else
             tool->state &= ~wxAUI_BUTTON_STATE_CHECKED;
     }
 }
@@ -1490,7 +1490,7 @@ void wxAuiToolBar::EnableTool(int tool_id, bool state)
     {
         if (state == true)
             tool->state &= ~wxAUI_BUTTON_STATE_DISABLED;
-         else
+        else
             tool->state |= wxAUI_BUTTON_STATE_DISABLED;
     }
 }
@@ -1634,7 +1634,7 @@ bool wxAuiToolBar::GetToolFitsByIndex(int tool_idx) const
         if (rect.y+rect.height < cli_h)
             return true;
     }
-     else
+    else
     {
         // take the dropdown size into account
         if (m_overflow_visible)
@@ -1697,10 +1697,10 @@ bool wxAuiToolBar::Realize()
     {
         if (horizontal)
             m_gripper_sizer_item = sizer->Add(gripper_size, 1, 0, wxEXPAND);
-             else
+        else
             m_gripper_sizer_item = sizer->Add(1, gripper_size, 0, wxEXPAND);
     }
-     else
+    else
     {
         m_gripper_sizer_item = NULL;
     }
@@ -1710,7 +1710,7 @@ bool wxAuiToolBar::Realize()
     {
         if (horizontal)
             sizer->Add(m_left_padding, 1);
-             else
+        else
             sizer->Add(1, m_left_padding);
     }
 
@@ -1758,7 +1758,7 @@ bool wxAuiToolBar::Realize()
             {
                 if (horizontal)
                     sizer_item = sizer->Add(separator_size, 1, 0, wxEXPAND);
-                     else
+                else
                     sizer_item = sizer->Add(1, separator_size, 0, wxEXPAND);
 
                 // add tool packing
@@ -1773,7 +1773,7 @@ bool wxAuiToolBar::Realize()
             case wxITEM_SPACER:
                 if (item.proportion > 0)
                     sizer_item = sizer->AddStretchSpacer(item.proportion);
-                 else
+                else
                     sizer_item = sizer->Add(item.spacer_pixels, 1);
                 break;
 
@@ -1786,11 +1786,11 @@ bool wxAuiToolBar::Realize()
                 vert_sizer->AddStretchSpacer(1);
                 ctrl_sizer_item = vert_sizer->Add(item.window, 0, wxEXPAND);
                 vert_sizer->AddStretchSpacer(1);
-                if ((m_style & wxAUI_TB_TEXT) &&
-                    m_tool_text_orientation == wxAUI_TBTOOL_TEXT_BOTTOM &&
-                    item.label.Length() > 0)
+                if ( (m_style & wxAUI_TB_TEXT) &&
+                     m_tool_text_orientation == wxAUI_TBTOOL_TEXT_BOTTOM &&
+                     !item.GetLabel().empty() )
                 {
-                    wxSize s = GetLabelSize(item.label);
+                    wxSize s = GetLabelSize(item.GetLabel());
                     vert_sizer->Add(1, s.y);
                 }
 
@@ -1829,7 +1829,7 @@ bool wxAuiToolBar::Realize()
     {
         if (horizontal)
             sizer->Add(m_right_padding, 1);
-             else
+        else
             sizer->Add(1, m_right_padding);
     }
 
@@ -1843,10 +1843,10 @@ bool wxAuiToolBar::Realize()
         {
             if (horizontal)
                 m_overflow_sizer_item = sizer->Add(overflow_size, 1, 0, wxEXPAND);
-                 else
+            else
                 m_overflow_sizer_item = sizer->Add(1, overflow_size, 0, wxEXPAND);
         }
-         else
+        else
         {
             m_overflow_sizer_item = NULL;
         }
@@ -1861,7 +1861,7 @@ bool wxAuiToolBar::Realize()
     {
         if (horizontal)
             outside_sizer->Add(1, m_top_padding);
-             else
+        else
             outside_sizer->Add(m_top_padding, 1);
     }
 
@@ -1873,7 +1873,7 @@ bool wxAuiToolBar::Realize()
     {
         if (horizontal)
             outside_sizer->Add(1, m_bottom_padding);
-             else
+        else
             outside_sizer->Add(m_bottom_padding, 1);
     }
 
@@ -1911,12 +1911,12 @@ bool wxAuiToolBar::Realize()
         {
             SetClientSize(new_size);
         }
-         else
+        else
         {
             m_sizer->SetDimension(0, 0, cur_size.x, cur_size.y);
         }
     }
-     else
+    else
     {
         wxSize cur_size = GetClientSize();
         m_sizer->SetDimension(0, 0, cur_size.x, cur_size.y);
@@ -1944,7 +1944,7 @@ wxRect wxAuiToolBar::GetOverflowRect() const
         overflow_rect.width = cli_rect.width;
         overflow_rect.height = overflow_size;
     }
-     else
+    else
     {
         overflow_rect.x = cli_rect.width - overflow_size;
         overflow_rect.y = 0;
@@ -1998,7 +1998,7 @@ void wxAuiToolBar::DoIdleUpdate()
                 bool is_enabled;
                 if (item.window)
                     is_enabled = item.window->IsEnabled();
-                     else
+                else
                     is_enabled = (item.state & wxAUI_BUTTON_STATE_DISABLED) ? false : true;
 
                 bool new_enabled = evt.GetEnabled();
@@ -2008,11 +2008,11 @@ void wxAuiToolBar::DoIdleUpdate()
                     {
                         item.window->Enable(new_enabled);
                     }
-                     else
+                    else
                     {
                         if (new_enabled)
                             item.state &= ~wxAUI_BUTTON_STATE_DISABLED;
-                             else
+                        else
                             item.state |= wxAUI_BUTTON_STATE_DISABLED;
                     }
                     need_refresh = true;
@@ -2032,7 +2032,7 @@ void wxAuiToolBar::DoIdleUpdate()
                 {
                     if (new_checked)
                         item.state |= wxAUI_BUTTON_STATE_CHECKED;
-                         else
+                    else
                         item.state &= ~wxAUI_BUTTON_STATE_CHECKED;
 
                     need_refresh = true;
@@ -2057,7 +2057,7 @@ void wxAuiToolBar::OnSize(wxSizeEvent& WXUNUSED(evt))
 
     if (x > y)
         SetOrientation(wxHORIZONTAL);
-         else
+    else
         SetOrientation(wxVERTICAL);
 
     if (((x >= y) && m_absolute_min_size.x > x) ||
@@ -2075,7 +2075,7 @@ void wxAuiToolBar::OnSize(wxSizeEvent& WXUNUSED(evt))
             }
         }
     }
-     else
+    else
     {
         // show all flexible items
         size_t i, count;
@@ -2142,7 +2142,7 @@ void wxAuiToolBar::OnPaint(wxPaintEvent& WXUNUSED(evt))
         wxRect gripper_rect = m_gripper_sizer_item->GetRect();
         if (horizontal)
             gripper_rect.width = gripper_size;
-             else
+        else
             gripper_rect.height = gripper_size;
         m_art->DrawGripper(dc, this, gripper_rect);
     }
@@ -2151,7 +2151,7 @@ void wxAuiToolBar::OnPaint(wxPaintEvent& WXUNUSED(evt))
     int last_extent;
     if (horizontal)
         last_extent = cli_rect.width;
-         else
+    else
         last_extent = cli_rect.height;
     if (m_overflow_visible)
         last_extent -= dropdown_size;
@@ -2179,25 +2179,25 @@ void wxAuiToolBar::OnPaint(wxPaintEvent& WXUNUSED(evt))
             // draw a separator
             m_art->DrawSeparator(dc, this, item_rect);
         }
-         else if (item.kind == wxITEM_LABEL)
+        else if (item.kind == wxITEM_LABEL)
         {
             // draw a text label only
             m_art->DrawLabel(dc, this, item, item_rect);
         }
-         else if (item.kind == wxITEM_NORMAL)
+        else if (item.kind == wxITEM_NORMAL)
         {
             // draw a regular button or dropdown button
             if (!item.dropdown)
                 m_art->DrawButton(dc, this, item, item_rect);
-             else
+            else
                 m_art->DrawDropDownButton(dc, this, item, item_rect);
         }
-         else if (item.kind == wxITEM_CHECK)
+        else if (item.kind == wxITEM_CHECK)
         {
             // draw a toggle button
             m_art->DrawButton(dc, this, item, item_rect);
         }
-         else if (item.kind == wxITEM_CONTROL)
+        else if (item.kind == wxITEM_CONTROL)
         {
             // draw the control's label
             m_art->DrawControlLabel(dc, this, item, item_rect);
@@ -2261,7 +2261,7 @@ void wxAuiToolBar::OnLeftDown(wxMouseEvent& evt)
             {
                 DoIdleUpdate();
             }
-             else
+            else
             {
                 size_t i, count;
                 wxAuiToolBarItemArray overflow_items;
@@ -2357,14 +2357,14 @@ void wxAuiToolBar::OnLeftUp(wxMouseEvent& evt)
         m_action_item = NULL;
         return;
     }
-     else
+    else
     {
         wxAuiToolBarItem* hit_item;
         hit_item = FindToolByPosition(evt.GetX(), evt.GetY());
 
         if (m_action_item && hit_item == m_action_item)
         {
-            SetToolTip(NULL);
+            UnsetToolTip();
 
             if (hit_item->kind == wxITEM_CHECK)
             {
@@ -2372,7 +2372,7 @@ void wxAuiToolBar::OnLeftUp(wxMouseEvent& evt)
 
                 if (m_action_item->state & wxAUI_BUTTON_STATE_CHECKED)
                     toggle = false;
-                 else
+                else
                     toggle = true;
 
                 ToggleTool(m_action_item->id, toggle);
@@ -2382,7 +2382,7 @@ void wxAuiToolBar::OnLeftUp(wxMouseEvent& evt)
                 ProcessEvent(e);
                 DoIdleUpdate();
             }
-             else
+            else
             {
                 wxCommandEvent e(wxEVT_COMMAND_MENU_SELECTED, m_action_item->id);
                 e.SetEventObject(this);
@@ -2453,7 +2453,7 @@ void wxAuiToolBar::OnRightUp(wxMouseEvent& evt)
             DoIdleUpdate();
         }
     }
-     else
+    else
     {
         // right-clicked on the invalid area of the toolbar
         wxAuiToolBarEvent e(wxEVT_COMMAND_AUITOOLBAR_RIGHT_CLICK, -1);
@@ -2538,7 +2538,7 @@ void wxAuiToolBar::OnMotion(wxMouseEvent& evt)
         m_action_pos != wxPoint(-1,-1) &&
         abs(evt.m_x - m_action_pos.x) + abs(evt.m_y - m_action_pos.y) > 5)
     {
-        SetToolTip(NULL);
+        UnsetToolTip();
 
         m_dragging = true;
 
@@ -2555,10 +2555,10 @@ void wxAuiToolBar::OnMotion(wxMouseEvent& evt)
     {
         if (!(hit_item->state & wxAUI_BUTTON_STATE_DISABLED))
             SetHoverItem(hit_item);
-             else
+        else
             SetHoverItem(NULL);
     }
-     else
+    else
     {
         // no hit item, remove any hit item
         SetHoverItem(hit_item);
@@ -2573,15 +2573,15 @@ void wxAuiToolBar::OnMotion(wxMouseEvent& evt)
         {
             m_tip_item = packing_hit_item;
 
-            if (packing_hit_item->short_help.Length() > 0)
+            if ( !packing_hit_item->short_help.empty() )
                 SetToolTip(packing_hit_item->short_help);
-                 else
-                SetToolTip(NULL);
+            else
+                UnsetToolTip();
         }
     }
-     else
+    else
     {
-        SetToolTip(NULL);
+        UnsetToolTip();
         m_tip_item = NULL;
     }
 
@@ -2591,7 +2591,7 @@ void wxAuiToolBar::OnMotion(wxMouseEvent& evt)
     {
         if (m_action_item == hit_item)
             SetPressedItem(m_action_item);
-         else
+        else
             SetPressedItem(NULL);
     }
 
diff --git a/version-script.in b/version-script.in
index 503fa4fce8..a6db3de926 100644
--- a/version-script.in
+++ b/version-script.in
@@ -29,6 +29,7 @@
 @WX_VERSION_TAG@.9 {
         *wxAuiTabCtrl*OnCaptureLost*;
         *wxAuiToolBar*;
+        *wxWindow*UnsetToolTip*;
 };
 
 @WX_VERSION_TAG@.8 {