Warning: Using STDWIN is not recommended for new applications. It has never been ported to Microsoft Windows or Windows NT, and for X11 or the Macintosh it lacks important functionality --- in particular, it has no tools for the construction of dialogs. For most platforms, alternative, native solutions exist (though none are currently documented in this manual): Tkinter for UNIX under X11, native Xt with Motif or Athena widgets for UNIX under X11, Win32 for Windows and Windows NT, and a collection of native toolkit interfaces for the Macintosh.