.\"***************************************************************************
-.\" Copyright (c) 1998-2015,2017 Free Software Foundation, Inc. *
+.\" Copyright 2018,2020 Thomas E. Dickey *
+.\" Copyright 1998-2015,2017 Free Software Foundation, Inc. *
.\" *
.\" Permission is hereby granted, free of charge, to any person obtaining a *
.\" copy of this software and associated documentation files (the *
.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: curs_touch.3x,v 1.20 2017/11/25 16:19:42 tom Exp $
+.\" $Id: curs_touch.3x,v 1.22 2020/02/02 23:34:34 tom Exp $
.TH curs_touch 3X ""
.na
.hy 0
.SH DESCRIPTION
The \fBtouchwin\fR and \fBtouchline\fR routines throw away all
optimization information about which parts of the window have been
-touched, by pretending that the entire window has been drawn on. This
+touched, by pretending that the entire window has been drawn on.
+This
is sometimes necessary when using overlapping windows, since a change
to one window affects the other window, but the records of which lines
-have been changed in the other window do not reflect the change. The
+have been changed in the other window do not reflect the change.
+The
routine \fBtouchline\fR only pretends that \fIcount\fR lines have been
changed, beginning with line \fIstart\fR.
.PP