From:	rri!potter AT vtserf DOT cc DOT vt DOT edu (Mark Allen Potter)
Subject:	_harderr replacement
To:	djgpp AT sun DOT soe DOT clarkson DOT edu (DJ G++ Mailing List)
Date:	Tue, 5 Oct 1993 15:04:24 -0400 (EDT)
Reply-To:	rri!potter AT vtserf DOT cc DOT vt DOT edu

I am looking for a solution to a problem.  I am near the end of porting a large
program, previously written for MSC v6.0, to DJGPP.  (Overall it's been a
pleasurable experience)  I currently have one problem though.  The original
code made use of the MSC functions:
	void _harderr( void(_far *handler)() );
	void _hardretn( int error );
These functions are used to trap critical MSDOS errors that use interrupt 0x24.
Currently I've ported the code without a replacement for these functions, and
everything else is working fine.  However I am in need of a replacement for
these functions.  The program in question spends all of its time in graphics
mode and reads files from a less than 100% reliable MO-Drive.  I therefore must
trap the critical errors, or else the operator will never see the dreaded
"Abort, Retry, or Fail" errors.  Any solutions would be welcomed.  I would
perfer not to have to modify GO32, but if I must, so be it.  Thanks.
					Potter
					rri!potter AT vtserf DOT cc DOT vt DOT edu

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