It depends. FYI opengl demos is under addons/demos. Срд, 06 Июл 2011, Raul Miller писал(а): > As near as I can tell, the opengl demos are not a part of J701. > > -- > Raul > > On Wed, Jul 6, 2011 at 12:46 AM, bill lam <[email protected]> wrote: > > I think J602 jzopengl under windows will always fail the first time it is > > called, so that a dummy call during initialization is needed. After that, > > all calls to it should succeed without iteration. > > > > I guess it was actually the prior call to ChooseSetPixelFormat hdc > > that failed so that wglCreateContext can never succeed. > > > > Does it work in J701? > > > >> Date: Tue, 5 Jul 2011 10:27:48 -0400 > >> From: Raul Miller <[email protected]> > >> To: Programming forum <[email protected]> > >> Subject: [Jprogramming] opengl demo > >> Reply-To: Programming forum <[email protected]> > >> > >> I am trying J's demos under j602. They used to work for me, though I > >> am not specifically sure if that was on this machine. > >> > >> opengl simple demos works just fine for me. > >> > >> opengl, however fails on an assertion: > >> 'hgl failed' oglassert hgl > >> > >> in rc inherited from jzopengl. > >> > >> Looking closer, hgl is 0, in: > >> > >> hgl=: >{.wglCreateContext hdc > >> if. *./0=hgl,ONETIME do. > >> ONETIME_jzopengl_=: 1 > >> rc'' > >> end. > >> 'hgl failed' oglassert hgl > >> > >> glGetError returns 1282 (invalid operation) > >> > >> So.. apparently wglCreateContext fails sometimes and the solution has > >> been to recursively run rc again, but just once. > >> > >> Does anyone have any suggestions of what to investigate, to determine > >> what is going wrong here? > >> > >> Note that J's debugger has a tendency to vanish when I try experiments > >> (such as running rc'' manually in a debugging context -- which still > >> failed), and I have to exit J and restart to get it back. So I feel a > >> bit lost here. > >> > >> Thanks, > >> > >> -- > >> Raul > >> > > > > -- > > regards, > > ==================================================== > > GPG key 1024D/4434BAB3 2008-08-24 > > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm
-- regards, ==================================================== GPG key 1024D/4434BAB3 2008-08-24 gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
