-void wxMetafileDC::GetTextExtent(const wxString& string, long *x, long *y,
- long *descent, long *externalLeading,
- const wxFont *theFont,
- bool WXUNUSED(use16bit)) const
+void wxMetafileDCImpl::DoGetTextExtent(const wxString& string,
+ wxCoord *x, wxCoord *y,
+ wxCoord *descent, wxCoord *externalLeading,
+ const wxFont *theFont) const