use MSWCreateControl() instead of the old mess; implemented Get(Class)DefaultAttributes()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26527 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/listbox.h

@@ -129,9 +129,20 @@ public:
     // Windows callbacks
     bool MSWCommand(WXUINT param, WXWORD id);
 
-    virtual void SetupColours();
+    virtual wxVisualAttributes GetDefaultAttributes() const
+    {
+        return GetClassDefaultAttributes(GetWindowVariant());
+    }
+
+    static wxVisualAttributes
+    GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL)
+    {
+        return GetCompositeControlsDefaultAttributes(variant);
+    }
 
 protected:
+    WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const;
+
     // free memory (common part of Clear() and dtor)
     void Free();