diff --git a/include/wx/aui/dockart.h b/include/wx/aui/dockart.h
index 95a5ffd478..fb21ae5acd 100644
--- a/include/wx/aui/dockart.h
+++ b/include/wx/aui/dockart.h
@@ -46,27 +46,33 @@ public:
     void SetColor(int id, const wxColour& color) { SetColour(id, color); }
 
     virtual void DrawSash(wxDC& dc,
+                          wxWindow *window,
                           int orientation,
                           const wxRect& rect) = 0;
 
     virtual void DrawBackground(wxDC& dc,
+                          wxWindow *window,
                           int orientation,
                           const wxRect& rect) = 0;
 
     virtual void DrawCaption(wxDC& dc,
+                          wxWindow *window,
                           const wxString& text,
                           const wxRect& rect,
                           wxPaneInfo& pane) = 0;
 
     virtual void DrawGripper(wxDC& dc,
+                          wxWindow *window,
                           const wxRect& rect,
                           wxPaneInfo& pane) = 0;
 
     virtual void DrawBorder(wxDC& dc,
+                          wxWindow *window,
                           const wxRect& rect,
                           wxPaneInfo& pane) = 0;
 
     virtual void DrawPaneButton(wxDC& dc,
+                          wxWindow *window,
                           int button,
                           int button_state,
                           const wxRect& rect,
@@ -92,27 +98,33 @@ public:
     wxFont GetFont(int id);
 
     void DrawSash(wxDC& dc,
+                  wxWindow *window,
                   int orientation,
                   const wxRect& rect);
 
     void DrawBackground(wxDC& dc,
+                  wxWindow *window,
                   int orientation,
                   const wxRect& rect);
 
     void DrawCaption(wxDC& dc,
+                  wxWindow *window,
                   const wxString& text,
                   const wxRect& rect,
                   wxPaneInfo& pane);
 
     void DrawGripper(wxDC& dc,
+                  wxWindow *window,
                   const wxRect& rect,
                   wxPaneInfo& pane);
 
     void DrawBorder(wxDC& dc,
+                  wxWindow *window,
                   const wxRect& rect,
                   wxPaneInfo& pane);
 
     void DrawPaneButton(wxDC& dc,
+                  wxWindow *window,
                   int button,
                   int button_state,
                   const wxRect& rect,