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From: Roger <rogermc@grapevine.com.au>
Subject: Re: OpenGL gl.getstring produces erroneous memory access under GLOBE_3D on Mac
Date: Tue, 27 Sep 2016 08:57:35 -0700 (PDT)
Date: 2016-09-27T08:57:35-07:00	[thread overview]
Message-ID: <b25d6ed7-6ef6-46cf-9f1f-9cb65e1306dc@googlegroups.com> (raw)
In-Reply-To: <ed7ccdaf-7165-48d1-a27a-c05ff2eca959@googlegroups.com>

On Monday, September 26, 2016 at 2:10:42 PM UTC+10, Roger wrote:
> Mac OSX 10.11.6
> XCode 8.0
> GNAT GPL 2016 (20160515-49)
> globe_3d_release_2016-07-05
> 
> I have been writing quite a lot of OPenGL in Ada using GLOBE_3D.
> 
> However, I have just tried to "Checking for OpenGL functionality" as described in Apple's OpenGL Programming Guide for Mac.
> However,  gl.GetString(GL.VENDOR) and other calls to  gl.GetString result in:
> raised CONSTRAINT_ERROR : erroneous memory access
> 
> even if gl.GetString(GL.VENDOR)  is in the only instruction in the program.
> 
> Any ideas on what's causing this will be appreciated.
> 
> Roge
Now it works!
It just needed  a window to be declared:
GLUT.CreateWindow( "Test" )


      parent reply	other threads:[~2016-09-27 15:57 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-26  4:10 OpenGL gl.getstring produces erroneous memory access under GLOBE_3D on Mac Roger
2016-09-26  7:18 ` Simon Wright
2016-09-26  9:31   ` G.B.
2016-09-26 10:15 ` gautier_niouzes
2016-09-26 10:21   ` Aurele
2016-09-27  2:42   ` Roger
2016-09-27  3:03   ` Roger
2016-09-27 15:57 ` Roger [this message]
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