Path: utzoo!attcan!uunet!zephyr!tektronix!percival!bucket!leonard
From: leonard@bucket.UUCP (Leonard Erickson)
Newsgroups: comp.lang.pascal
Subject: Re: TP printer-unit bug ?
Message-ID: <1423@bucket.UUCP>
Date: 29 May 89 22:13:40 GMT
References: <1384@laura.UUCP>
Reply-To: leonard@bucket.UUCP (Leonard Erickson)
Organization: Rick's Home Grown Unix; Portland, OR
Lines: 23

In article <1384@laura.UUCP> st%trillian.irb@unido.UUCP (Stefan Timphus) writes:
<I want to send a Escape sequence to my printer (i.e. chr(27),chr(71) for NLQ)
<but the only thing I get is that the character after the Escape is printed
<(in this case instead of NLQ I only get a "G"). I'm using the unit printer of
<Turbo 5.0. Is this a bug in Turbo 5.0 ? I know I had the same program running
<under previous Turbo Versions. Or did they invent something new which I haven't
<found yet in the manual ? I think it must be a Turbo problem because I tested
<it under different DOS-Versions and I get the wanted result using Basic.

Ever since TP 4.0 the LST "file" is opened in "cooked" mode, rather than
"raw" mode. This means that it is subjected to the same limitations as typing
at the DOS prompt. (^Z is end of file, tabs are expanded, ESC is filtered
out...)

I know there is a way to open the printer as a binary file, not as an "ascii"
file, but I don't remember it offhand. One suggestion would be to open
PRN as a file of byte instead of using the LST "file".

-- 
Leonard Erickson		...!tektronix!reed!percival!bucket!leonard
CIS: [70465,203]
"I'm all in favor of keeping dangerous weapons out of the hands of fools.
Let's start with typewriters." -- Solomon Short