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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Community Input for the Maintenance and Revision of the Ada
 Programming Language
Date: Thu, 10 Aug 2017 17:44:21 +0200
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Date: 2017-08-10T17:44:21+02:00
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On 2017-08-10 17:25, J-P. Rosen wrote:
> Le 10/08/2017 à 16:41, Lucretia a écrit :
>> I've seen people look at the language because it seemed interesting
>> to them, then ask, "Does Ada have a GUI lib?" or "Does Ada have
>> OpenGL?" or "Does Ada have DirectX?" etc. When they are told no, they
>> leave never to return, because this is what they want in a language's
>> runtime.
> 
> Why in the world would you answer "No" ? Here is how I deal with these
> questions:
> 
> "Does Ada have a GUI lib?"
> Sure, like other languages, we have interfaces to GTK, QT, Tcl/TK, Lua,
> Python...
> 
> "Does Ada have OpenGL?"
> Yes, see adaopengl on SourceForge
> 
> "Does Ada have DirectX?"
> Yes, see DirectX binding to Ada on SourceForge

The interfaces of these libraries follow the paradigms of the 
implementation language. This becomes an increasing problem with the 
complexity GUI design and interaction has. Tasking and object 
hierarchies and interfaces is in particular difficult. So merely having 
bindings to an alien library is not enough.

I don't think that having GUI in Ada standard is realistic or desirable. 
But we need tools to design Ada libraries with GTK, QT etc as a back-end 
rather than direct bindings.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de