Loading this file enables the graphical frontends for the online manual and profiler. This file is normally loaded from swipl.rc (swipl-win.rc on Windows); the file that makes XPCE known to Prolog.

This file uses call/1 to call the real work to avoid undefined predicate messages when using make/0 (calling list_undefined/0).

Since the introduction of the more advanced autoloader in library(prolog_autoload), using call/1 no longer suffices to stop this file from being loaded.

 prolog:alternate_syntax(?Syntax, +Module, -Setup, -Restore)[multifile]

Implements operator handling for reading arbitrary terms from XPCE classes.