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From: ppd491@leah.Albany.Edu (Peter P. Donohue)
Newsgroups: comp.sys.ibm.pc,comp.lang.pascal
Subject: Various Turbo pascal questions
Keywords: Turbo pascal
Message-ID: <2185@leah.Albany.Edu>
Date: 23 Nov 89 14:50:28 GMT
Organization: The University at Albany, Computer Services Center
Lines: 24


   I have a few questions pertaining to programming in Turbo Pascal 5.5
under the MS-Dos operating system. Any help with these would be
appreciated. 

  1) In an external data file (containing all ascii data), what is the
maximum length of a line allowed? 
  2) Is there a way to read any text that has been written to a screen?
I am writing a program that uses windows (that I write with pascal, not
the program) and I would like to be able to reset what was on the screen
after I clear a window.
  3) Is there a way to read the 'variables' (I'm not sure of the exact
name for them) that are set in AUTOEXEC.BAT with the SET command? An
example is with the program, Procomm, they let you set the path to the
program with the command 'SET PROCOMM=path'. Can you read what procomm
is set to with TP5.5 and how would you do it. 

   Thanks for any help and have a Happy Turkey Day!

						Pete  
-- 
Peter P. Donohue 
ppd491@albny1vx.bitnet               .  "Education is a journey,
ppd491@leah.albany.edu               .    not a destination..."