RE: [OT] Best way to isolate a GUI?

["Robert C. Leif" <rleif@rleif.com>]

There are two approaches. 1) Totally ignore the Windows model and create an
Ada environment for XML documents including XForms. Presumably, the
documents would be treated as protected types and managed by Ada tasking.
This model would be very useful for embedded and/or high reliability
systems. 
2) Since the present implementations of XForms are in C++ and Java,
equivalent functionality should be available in Ada. X -Smiles
(http://www.xsmiles.org/) is written in Java and the sources are available
at http://www.xsmiles.org/javadoc/index.html
In both cases the XForms standard (11.2 Submission Options) refers to RFC
2616 HTTP/1.1 (June 1999) (http://www.ietf.org/rfc/rfc2616.txt) which
states:
" 1.4 Overall Operation
   The HTTP protocol is a request/response protocol. A client sends a
   request to the server in the form of a request method, URI, and
   protocol version, followed by a MIME-like message containing request
   modifiers, client information, and possible body content over a
   connection with a server. The server responds with a status line,
   including the message's protocol version and a success or error code,
   followed by a MIME-like message containing server information, entity
   metainformation, and possible entity-body content."
This is essentially an exchange of strings.
Bob Leif

-----Original Message-----
From: Preben Randhol [mailto:randhol+news@pvv.org] 
Sent: Monday, February 17, 2003 12:45 AM
To: comp.lang.ada@ada.eu.org
Subject: Re: [OT] Best way to isolate a GUI?

Robert C. Leif wrote:
> In principle, the best way to isolate the GUI is to use XForms with XML.
One
> can now download an XForms tool that works with Windows,
> http://www.formsplayer.com/. I believe that there are similar tools for
> Linux. The next step is to write the Ada software to interface with
XForms.

How do you connect callbacks?


-- 
Preben Randhol ---------------- http://www.pvv.org/~randhol/ --
"Violence is the last refuge of the incompetent", Isaac Asimov