Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hpfcdc!hpfcmgw!garys
From: garys@hpfcmgw.HP.COM (Gary Stringham)
Newsgroups: comp.sys.hp
Subject: Re: Starbase Question
Message-ID: <1080059@hpfcmgw.HP.COM>
Date: 9 Jun 89 15:02:20 GMT
References: <40983@bbn.COM>
Organization: HP Fort Collins, CO
Lines: 25

> ...which works on hp2393a, hp2397a, hp2623a and hp2627a terminals....

> if((graphics = gopen("/dev/screen/HP2397a", OUTDEV, "sox11",
>                    INIT |RESET_DEVICE))

Are you talking to terminals?  If so, then you want open device
"/dev/tty" and driver "hp262x".  If you are on an X11 system, then thats
a different animal.  Just create one window for graphics and one for
text.

Assuming that you are talking to terminals, then you can use the memory
lock as Bob Niland suggested.  Move the cursor to the top of the screen,
clear the screen, then move the cursor to the spot on the terminal where
you want the dividing line to be and set memory lock, then move the
cursor to the bottom of the screen.  These can be done using standard HP
Terminal Escape Sequences.  Then only open one graphics window and use
set_p1_p2, view_port, etc, etc, to only address the top portion.  Then
using your standard graphics commands, send stuff to the graphics
window.  For the scrolling text stuff, just use your standard output
statements like you would use to send any text stuff to a terminal.  It
will scroll up to the dividing line and disappear.  When the program
exits, turn memory lock off so that the full screen will be in use.
Otherwise, the user will have to turn it off using the softkeys.

Gary Stringham