Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uupsi!sunic!kth.se!cyklop.nada.kth.se!news
From: d90-awe@dront.nada.kth.se (Assar Westerlund)
Newsgroups: comp.os.msdos.programmer
Subject: Re: Intercepting "Abort, Retry, Ignore or Fail" messages?
Summary: INT 24h
Message-ID: <1991Apr17.112642.2749@nada.kth.se>
Date: 17 Apr 91 11:26:42 GMT
References: <1991Apr16.121117.19460@aplcen.apl.jhu.edu>
Organization: Royal Institute of Technology, Stockholm, Sweden
Lines: 26

In article <1991Apr16.121117.19460@aplcen.apl.jhu.edu> tcs@mailer.jhuapl.edu (Carl Schelin) writes:
>I recall a short time ago someone asking about how to do this but
>didn't think I'd need this info so of course didn't save it.
>
>I wonder if someone could send my way the method of stopping 
>the Abort, Retry... message from appearing. I want to be able to go to
>A: through my program, and be told that it's not available so I can 
>continue without bringing up the (arf). 

The "abort, retry... " message is called a critical error by DOS. When
a critical error occurs, dos calls INT 24h. What you should be able to
do is intercept INT 24h and print your own message or do whatever you
want... 

To see the parameters used by the INT 24h call, look it up in a DOS
programming book, like Peter Norton's, or one of these interrupts
list. If you're unable to do this, e-mail me and I'll try to send you
the information.

/Assar


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Assar Westerlund
Address: d90-awe@nada.kth.se
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