From b6229a61fa4b00bc34914310d3a68cd49f3ea310 Mon Sep 17 00:00:00 2001
From: Kirk McKusick <mckusick@ucbvax.Berkeley.EDU>
Date: Thu, 24 Apr 1986 06:48:47 -0800
Subject: [PATCH] document distributed with 4.1BSD

SCCS-vsn: lib/libcurses/PSD.doc/doc.IV 4.1
---
 usr/src/lib/libcurses/PSD.doc/doc.IV | 79 ++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 usr/src/lib/libcurses/PSD.doc/doc.IV

diff --git a/usr/src/lib/libcurses/PSD.doc/doc.IV b/usr/src/lib/libcurses/PSD.doc/doc.IV
new file mode 100644
index 0000000000..8506207391
--- /dev/null
+++ b/usr/src/lib/libcurses/PSD.doc/doc.IV
@@ -0,0 +1,79 @@
+.\" Copyright (c) 1980 Regents of the University of California.
+.\" All rights reserved.  The Berkeley software License Agreement
+.\" specifies the terms and conditions for redistribution.
+.\"
+.\"	@(#)doc.IV	4.1 (Berkeley) %G%
+.\"
+.Ds
+.Fd gettmode
+.De
+Get the tty stats.
+This is normally called by
+.Fn initscr .
+.Ds
+.Fd mvcur lasty\*,lastx\*,newy\*,newx
+int	lasty\*,lastx\*,newy\*,newx;
+.De
+Moves the terminal's cursor from
+.Vn lasty\*,lastx ) (
+to
+.Vn newy\*,newx ) (
+in an approximation of optimal fashion.
+This routine uses the functions borrowed from
+.i ex
+version 2.6.
+It is possible to use this optimization
+without the benefit of the screen routines.
+With the screen routines, this should not be called by the user.
+.Fn move
+and
+.Fn refresh
+should be used to move the cursor position,
+so that the routines know what's going on.
+.Ds
+.Fd scroll win
+WINDOW	*win;
+.De
+Scroll the window upward one line.
+This is normally not used by the user.
+.Ds
+.Fd savetty "" \*m
+.sp .5
+.Fd resetty "" \*m
+.De
+.Fn savetty
+saves the current tty characteristic flags.
+.Fn resetty
+restores them to what
+.Fn savetty
+stored.
+These functions are performed automatically by
+.Fn initscr
+and
+.Fn endwin .
+.Ds
+.Fd setterm name
+char	*name;
+.De
+Set the terminal characteristics to be those of the terminal named
+.Vn name .
+This is normally called by
+.Fn initscr .
+.Ds
+.Fd tstp
+.De
+If the new
+.b tty (4)
+driver is in use,
+this function
+will save the current tty state
+and then put the process to sleep.
+When the process gets restarted,
+it restores the tty state
+and then calls
+.Fn wrefresh "" "" curscr
+to redraw the screen.
+.Fn initscr
+sets the signal
+SIGTSTP
+to trap to this routine.
-- 
2.20.1