+GWorldPtr wxMacCreateGWorld( int height , int widtdh , int depth ) ;
+void wxMacDestroyGWorld( GWorldPtr gw ) ;
+PicHandle wxMacCreatePict( GWorldPtr gw , GWorldPtr mask = NULL ) ;
+void wxMacSetColorTableEntry( CTabHandle newColors , int index , int red , int green , int blue ) ;
+CTabHandle wxMacCreateColorTable( int numColors ) ;
+