Path: utzoo!attcan!uunet!husc6!mailrus!cornell!vax5!oawx
From: oawx@vax5.CIT.CORNELL.EDU
Newsgroups: comp.sys.ibm.pc
Subject: Dos calls within TSR's
Message-ID: <17309@vax5.CIT.CORNELL.EDU>
Date: 13 Nov 88 03:21:13 GMT
Sender: news@vax5.CIT.CORNELL.EDU
Reply-To: oawx@vax5.cit.cornell.edu ()
Organization: Cornell Information Technologies, Ithaca NY
Lines: 15



I'm currently writing a memory resident utility to capture the hi-res
graphics screen to a file.  (IBM assembly language)  10 seconds after
this program is loaded, it dumps the graphics screen to a file.  I plan
to use this utility to capture pictures from other programs.

I use the system timer to generate interrupts to my code.  Although the 
timing part of the code works fine, it seems that DOS function calls
from within interrupt routines don't work.  Can anybody out there help
me?  

Thank you, 

Eric Cox