FileExists --> wxFileExists

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@17543 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

contrib/src/ogl/drawn.cpp

@@ -1817,7 +1817,7 @@ void wxPseudoMetaFile::Copy(wxPseudoMetaFile& copy)
 
 bool wxPseudoMetaFile::LoadFromMetaFile(char *filename, double *rwidth, double *rheight)
 {
-  if (!FileExists(filename))
+  if (!wxFileExists(filename))
     return NULL;
 
   wxXMetaFile *metaFile = new wxXMetaFile;