Message-Id:	<199812231852.SAA11788@remus>
From:	"Arthur" <arfa AT clara DOT net>
To:	<djgpp AT delorie DOT com>
Subject:	RE: Application cannot be restored
Date:	Wed, 23 Dec 1998 18:50:54 -0000
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Reply-To:	djgpp AT delorie DOT com

> This is a problem that is commonly manifested in graphical
> programs using any
> resolution above VGA Mode 13h and Mode-X (at least those work for
> me). If you
> are using graphics modes from at least 640x480, or myabe 512x384,
> never tried
> it, that is the problem.

That's not strictly true - I can task-switch almost any Allegro program
running  under VGA, ModeX, VESA or FreeBE/AF under Win95 at any resolution,
although not in a window.

> If you know you are going to be switching out, press ALT-ENTER so
> it says the
> program can only be run in the full screen. Do your Windows thing
> and go back,
> pressing alt-enter again. If Windows just pops up some dialog for
> some reason
> such as it wants to ask you if it's ok to keep processing, then you're in
> trouble.
>
> It's not a DJGPP bug - Descent 2, Quake, and Warcraft2, all high
> res games,
> crash as well. OK, Quake is a bad example, it WAS written in
> DJGPP. Workaround :
> play using mode 13h or mode-x (not very useful, but it does work).

It's not always a graphics bug. Sometimes if Windows interrupts RHIDE while
I'm doing something complex with it (like debugging) it tells me that the
program cannot be restored. That could be a fault with my program though :-)

I'm afraid that a light wind blowing on the other side of the world can
affect how well Windows handles DOS (or even itself). For minimum hastle,
run a DOS program in DOS mode rather than under Windows and/or make sure
that you have the very latest version of Windows95 since that has a lot of
the DOSbox bugs fixed. I have never had to tell my version of Win95 to
switch to DOS mode to run a DJGPP program, and don't need to set it in the
properties tag of the program. As I said, I can almost always task-switch
out of (and into) a program with ALT-TAB. I can do this with Quake, Descent
and Warcraft (suggest you look at your configuration settings).

To the original poster:

BTW, what do you find problematic about the FAQ? I've always found it really
easy to navigate. The html version is especially easy, as it's got loads of
cross-referencing links all over the place. If I can't find a problem in the
contents or the index, a quick search for a keyword does the trick.

For instance, a quick find revealed that section 10.3 of the FAQ covered
your particlular problem.

James Arthur - jaa AT arfa DOT clara DOT net
http://www.jado.org/users/arfa/
ICQ#15054819

> Michael N. Kondaurov <M DOT N DOT Kondaurov AT inp DOT nsk DOT su> wrote in message
> news:5891BE355FE AT csd DOT inp DOT nsk DOT su...
> >       Dear sirs!
> > At first,sorry to my question,but our link to Internet is so slow
> > and find something in your FAQ's is impossible.
> >Situation:
> > When i switch from my DJGPP applicatin to WIN95 and then try
> > to switch again to application, Win95 wrote:
> > "This application cannot be restored and will be terminated"
> > The other my DJGPP applications work correctly.
> > But this is more bigger and allocates about 3MB of memory.
>
>
>
>

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