Path: utzoo!attcan!uunet!seismo!ukma!uflorida!mephisto!prism!gitpyr!mlw
From: mlw@pyr.gatech.EDU (Michael Williams)
Newsgroups: comp.lang.pascal
Subject: Printing from Turbo Pascal
Keywords: Help!!
Message-ID: <9909@pyr.gatech.EDU>
Date: 28 Feb 90 15:18:51 GMT
Reply-To: mlw@pyr.gatech.edu.gatech.edu (Michael Williams)
Organization: Georgia Institute of Technology
Lines: 20

I am having difficulty printing a large file from Turbo Pascal 4.0.
It seems that the CPU overwhelms the printer's buffer and causes an I/O
error.  I have written some code to detect if the printer is OK, but it
doesn't work reliably.  (It does work most of the time).

   regs.ah := 2;
   regs.dx := 0;
   intr(23,regs);
   if regs.ah = 144 then printer_ok := true;

I also thought about exec'ing the DOS print command to attempt to print in 
the so-called "background".  However, that involves calling a TSR from a 
program, which is probably not a good idea.

Any suggestions???
-- 
Michael Williams
Georgia Institute of Technology, Atlanta Georgia, 30332
uucp: ...!{akgua,allegra,amd,hplabs,ihnp4,seismo,ut-ngp}!gatech!gitpyr!mlw
ARPA: mlw@pyr.gatech.edu