1. MSW message handling simplifications

2. wxDC split into wxDC and wxDCBase
3. Several minor bug fixes, many major new bugs


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2455 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/window.h

@@ -723,10 +723,7 @@ private:
     // contains the last id generated by NewControlId
     static int ms_lastControlId;
 
-    // no copy ctor/assignment operator
-    wxWindowBase(const wxWindowBase&);
-    wxWindowBase& operator=(const wxWindowBase&);
-
+    DECLARE_NO_COPY_CLASS(wxWindowBase);
     DECLARE_EVENT_TABLE()
 };