Using ProXT with ProXL

ProXL is a direct interface to the X Window System. You may want to use ProXL in your ProXT programs in order to do graphics or use some of the X Window System's more subtle features not supported directly by the X toolkit.

ProXT provides a library file, library(xif), which allows ProXL predicates to be used smoothly in your ProXT programs. In order to use any of these predicates, you must load library(xif). Quintus distributes the source code for and users are encouraged to look at it for examples of mixed ProXL/ProXT programming.

If you need to use ProXT and ProXL together, make sure your code has:

     :- use_module(library(proxt)).
     :- use_module(library(proxl)).
     :- use_module(library(xif)).