X Window Interface for Prolog. A package for Prologs following the Quintus foreign function interface (e.g. SICStus Prolog). XWIP provides a (low-level) Xlib-style interface to X. The current version was developed and tested on SICStus 0.7 and MIT X11 R5 under SunOS 4.1.1. It should be adaptable to many other Unix configurations. Version 0.6.
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