Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!sdd.hp.com!hplabs!hpcc01!hpbbn!hpwad!ffritze
From: ffritze@hpwad.HP.COM (#Fromut Fritze)
Newsgroups: comp.lang.pascal
Subject: Re: How Can I empty COM1 port in TP?
Message-ID: <2290009@hpwad.HP.COM>
Date: 4 Sep 90 07:09:51 GMT
References: <34499@unix.cis.pitt.edu>
Organization: Hewlett-Packard Waldbronn, Germany
Lines: 18

> The title says it all. ....

I'm not sure - at least not to me

> How can I tell how many characters are there in COM1?

It's a serial port. Once you read one byte, another byte might appear form
your source. Unless you use any measn of handshake to stop the sender from
drowning you in bytes, you have to be fast in reading / processing. Depending
on your sender, any number of bytes may appear or get lost at COM1.

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