- // This is currently implemented only for MSW because there is no way to
- // render standard title bar buttons under the other platforms, the best
- // can be done is to use normal (only) images which wxArtProvider provides
- // for wxART_HELP and wxART_CLOSE (but not any other title bar buttons)
+ // This is currently implemented only for MSW and OS X (for the close
+ // button only) because there is no way to render standard title bar
+ // buttons under the other platforms, the best can be done is to use normal
+ // (only) images which wxArtProvider provides for wxART_HELP and
+ // wxART_CLOSE (but not any other title bar buttons)
+ //
+ // NB: make sure PNG handler is enabled if using this function under OS X