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From: jehamby@PROBLEM_WITH_INEWS_DOMAIN_FILE (Jake E. Hamby)
Newsgroups: comp.lang.ada
Subject: Motif gfx progs in DEC Ada?
Date: 7 Feb 1995 06:54:50 GMT
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Date: 1995-02-07T06:54:50+00:00
List-Id: <comp.lang.ada>

Pardon me for yet another DEC Ada related question but that's what we use 
at school...  I would like to write some graphics programs for 
DECwindows/Motif on a VAX running VMS and DEC Ada, but I'm having 
problems with the Motif-to-Ada bindings.  In ADA$PREDEFINED, I found the 
package description file MOTIF_.ADC, but I just couldn't port even the 
simplest "open window, print "Hello, world!" program to Ada.  First, the 
definition for XtAppInitialize neglected to return a value (in C, it 
returns a Widget).  When I substituted XtVaAppInitialize (which should 
NOT have an Ada equivalent, since Ada doesn't support varargs), the 
program just crashed.

On the other hand, there is a DIFFERENT Motif package in ADA$EXAMPLES, 
but it isn't built in to the standard Ada library and I don't have time 
to compile it and test it, since it would not be available to 
teachers/other students.  Anyway, can anyone please E-Mail me a simple 
example program to show how to use package MOTIF to write a simple 
graphical program?  I will post up a summary...

BTW, there isn't a recent port of GNAT for VMS, is there?  I love the 
Linux version, so I hope there is, or will be soon...

--
=========================================================================
*	Jake Hamby - "Linux: The Choice of a GNU Generation"		*
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* 	http://vms4.sci.csupomona.edu/~jehamby/index.html		*