// fwd declarations
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxWindowDC;
-class WXDLLEXPORT wxWindow;
+class WXDLLIMPEXP_FWD_CORE wxWindowDC;
+class WXDLLIMPEXP_FWD_CORE wxWindow;
// Under Windows, wxClientDC, wxPaintDC and wxWindowDC are implemented
// differently. On many platforms, however, they will be the same.