Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!zaphod.mps.ohio-state.edu!rpi!batcomputer!cornell!vax5.cit.cornell.edu!hd7x
From: hd7x@vax5.cit.cornell.edu (Sanjay Aiyagari)
Newsgroups: comp.os.msdos.programmer
Subject: Re: File/device handles
Message-ID: <1990Dec9.044112.1469@vax5.cit.cornell.edu>
Date: 9 Dec 90 08:41:11 GMT
References: <1990Dec8.050109.24482@wpi.WPI.EDU>
Distribution: comp
Lines: 13

In article <1990Dec8.050109.24482@wpi.WPI.EDU>,
jhall@wpi.WPI.EDU (John Clinton Hall) writes:
>
>Where can I get a list of MD-DOS device handles, such as those used by INT
>21/40 (write to file or device handle)?  I have searched my manuals, but to no
>avail.

DOS uses file handles 0-4 for special devices (I believe it is standard input,
standard output, standard error, auxiliary device, and standard printer).
Other than that, you get the file handle when you issue a create or open
function call, and this is what you use when you call function 40h to write to
a file.
Sanjay Aiyagari (hd7x@vax5.cit.cornell.edu)