Re: OpenGl again.
Your are exploring unknown frontier, my friend... keep going!
IOW, I can't help you, but I'm interested in your results. 
-----Original Message-----
From: Paul Martin <twilight at WCC.NET>
To: EUPHORIA at LISTSERV.MUOHIO.EDU <EUPHORIA at LISTSERV.MUOHIO.EDU>
Date: Tuesday, April 13, 1999 3:40 PM
Subject: Re: OpenGl again.
>Hello again,
>
>Well I hate replying to my own E-mails, but I've only got one other reply.
>I was wondering if I stumped everyone or does nobody care? I hoping it more
>that I stumped everone, but if it is because nobody cares then I need to
>know that I'm wasting my time.
>
>Thanks
>Paul Martin
>
>
>At 11:53 AM 4/8/99 -0500, you wrote:
>>Hello everyone.
>>
>>If any of you have read my previous postings you'll know that I'm working
>>on wrappers for OpenGL/GLUT. OpenGL is a 3D graphics API and GLUT is
>>similar to Win32lib, except designed for OpenGL. You can find out more
from
>><www.opengl.org>. I have for the last four weeks been pulling my hair out
>>trying to get it to work. I've been plagued by one problem that I
>>absolutely can not track down, because windows returns an encryptic error
>>message that does not point to any place in my program. I believe the
>>problem may lie in GLUT and the callbacks, but I cannot be sure.
>>
>>I was hoping a few of you would mind downloading what I have, taking a
look
>>at it, and see what you can come up with. I really wanted to get this to
>>work on my own, but I'm missing some critical piece of the puzzle.
>>
>>So far GLUT opens a window, clears it and then bombs with the error
message:
>>
>>>EXW caused an invalid page fault in
>>>module EXW.EXE at 023f:00405053.
>>>Registers:
>>>EAX=00000000 CS=023f EIP=00405053 EFLGS=00210216
>>>EBX=0000000f SS=0247 ESP=0056fb88 EBP=00000654
>>>ECX=00000000 DS=0247 ESI=005806fc FS=420f
>>>EDX=00000000 ES=0247 EDI=0056fba2 GS=0000
>>>Bytes at CS:EIP:
>>>8b 55 76 81 e2 ff 00 00 00 89 45 72 83 fa 04 75
>>>Stack dump:
>>>000001f6 0058040c 00000000 00000001 00000200 000001f6 00000201 00f30247
>>00000200 000001f6 0058040c 00000002 00000202 00f30247 00ec0000 00000040
>>
>> and then
>>
>>>EXW caused an invalid page fault in
>>>module <unknown> at 0000:0b75fc5d.
>>>Registers:
>>>EAX=bff87fc0 CS=023f EIP=0b75fc5d EFLGS=00210246
>>>EBX=bff87fc0 SS=0247 ESP=005600f8 EBP=00560118
>>>ECX=0056019c DS=0247 ESI=81760af0 FS=420f
>>>EDX=bff76859 ES=0247 EDI=00560290 GS=0000
>>>Bytes at CS:EIP:
>>>
>>>Stack dump:
>>>bff7684d 00560290 bff87fc0 005601c4 0056019c 0056057c bff76859 bff87fc0
>>005601ac bff87fc0 00560290 bff87fc0 005601c4 0056019c 0b75fc5d 00560304
>>
>>This means apparently I'm passing a bad value to GLUT. I've run a trace on
>>the program and it occurs when it's in glutMainLoop() which is C
procedure.
>>
>>If you are willing to take a look you will need Euphoria 2.1, because it
>>requires multiple callbacks. You will also need the Mesa dll's. I have
>>posted the wrappers (56k) at
>><http://www.geocities.com/CapeCanaveral/Campus/8684/Cube.zip>. I have
>>provided two demo programs cube.exw and simple.exw, both return with the
>>same errors. The Mesa dll's (352k) can be download here
>><http://www.geocities.com/CapeCanaveral/Campus/8684/mesa3dll.zip>. DO NOT
>>put them in your windows\system directory, make a new directory elsewhere,
>>and put them there. Mesa is not 100% OpenGL compliant so if you overwrite
>>the ones in your windows\system directory other programs may break. If you
>>want more documentation on Opengl and GLUT you can visit <www.opengl.org>.
>>I've also include the C programs that I used for the demos, and the
>>libraries for OpenGL/GLUT.
>>
>>You will probably need to edit the sequence "prefix" in each of the
>>libraries (glu.ew, glut2.ew, and opengl3.ew), to tell it where you placed
>>the Mesa dll's. Other than that they should run (sorta).
>>
>>Even if you are not successful at figuring out what's wrong, I'd also
>>appreciate any feedback.
>>
>>Thanks
>>Paul Martin
>>
>>
>
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