-void wxMetaFileDC::GetTextExtent(const wxString& string, float *x, float *y,
- float *descent, float *externalLeading, wxFont *theFont, bool use16bit)
+void wxMetaFileDC::GetTextExtent(const wxString& string, long *x, long *y,
+ long *descent, long *externalLeading, wxFont *theFont, bool use16bit) const