Message-Id: <m0xVyJn-000S1kC@inti.gov.ar>
Comments: Authenticated sender is <salvador AT natacha DOT inti DOT gov DOT ar>
From: "Salvador Eduardo Tropea (SET)" <salvador AT inti DOT edu DOT ar>
Organization: INTI
To: diegodc AT arrakis DOT es (diego), djgpp AT delorie DOT com
Date: Thu, 13 Nov 1997 15:40:03 +0000
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Subject: Re: Graphic debuging problem
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diegodc AT arrakis DOT es (diego) wrote:

> 	I'm back...he,he	};-)
> 
> 	There are 2 nasty problems that bother me, and I will thank help in
> ANY of these:
> 
> 
> 1)	First of all, I must tell you that I am programing (if almost
> ramdom keypading around can be called "to program") in C whith RHIDE
> v1.4. 
> 	As I am having bugs in a graphic program module (who doesn't, uh?),
> I'm trying to debug it. 
> 	So when run until cursor it changes to the user grphic screen. No
> problem so far, but as I try to go on tracing I have to keystroke
> alt+F5 (to changeback to the ide)
> 	and it shows a user text mode screen (the MSDOS one). Pressing alt+F5
> again returns to the RHIDE window and can go on tracing, but when
> pressed alt+F5 again it will NO longer show the graphic mode user
> screen, but the text mode user screen instead.
> 	(How is it supossed to debug a graphic module whitohut seeing what it
> does?!! Maybe it's a useful exercise to improve abstract thinking,
> uh?)
> 	Anyway, if you knew why it happens, or knew how to solve it, please do
> tell me about. 
1) Try calling RHIDE with -G 1
2) Do you have a VESA card?
3) Are you setting the mode using BIOS?
4) Can you install an Hercules monitor/card to yourr PC?

 
> 2)	The thing is that if I try *ANY* SVGA graphic mode under a
> WINDOWS 95's MSDOS window (even in whole screen mode) the system gets
> hanged up (you know, a only-cold-reboot-solution crash).
> 	It all happens just as I initgraph() with a SVGA mode (just like a
> *simple* 640x480x256colors). I know the .exe is ok because it DOES
> work in PLAIN MSDOS.
1) Other applications can do it in your system?
2) Do you have the original drivers of your card installed? (The ones with W95 
aren't so good, the ones in Direct X can fail, M$ warns about it).
3) How did you configured GRX? (board, etc).
 
> 	Is this *normal*? I mean, is grx expected to be used only on plain
> MSDOS or is there something wrong in my system configuration?
Your configuration (that includes the fact that you are using Loose 95). 
 
Saludos, SET 
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Salvador Eduardo Tropea (SET). (Electronics Engineer)
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