🚀 go-pugleaf

From: Vincent Phuah <vp01@gte.com>
Date: Tue, 15 Nov 88 16:04:16 EST

              Using X Widgets in Eiffel
              --------------------------
  I assume it is fair to say that the graphic library in the current
release has a lot of glitches and doesn't work correctly at times.  
While waiting for their next release, I am curious to 
know whether there have been any success in 
using the X Widget Sets (e.g. Athena and HP) in Eiffel. 

  Although Eiffel allows calls to external C routines, only basic C type
parameters can be passed between C and Eiffel. This severely limits 
the type of external C routines that can be called. For example,  
I think it is not possible to call the routines provided by the X Toolkit
because of the complex data structures that need to be passed
between these routines and Eiffel.  Also, there is a further 
complication when calling  external C routines
which have "#include files" in them. Currently, there is no
facility in Eiffel to include these files which leads to
an interesting problem - how to call a external function which has
a return type defined in the "include files". 

    These are the few problems I have encountered so far.
Any solutions and/or input is welcome. Thanks.
   
Vincent Phuah
Software Technologies Dept.
GTE Laboratories
40 Sylvan Road
Waltham, MA 02254