ncurses 6.2 - patch 20210213

[ncurses.git] / man / curs_scroll.3x

diff --git a/man/curs_scroll.3x b/man/curs_scroll.3x
index 0ba48f6256cdadcf7579c96ac0083e8735a9f749..d9e45f2d5becbfb8bde4eeb83f8278b86d34afa7 100644 (file)
--- a/man/curs_scroll.3x
+++ b/man/curs_scroll.3x
@@ -1,5 +1,6 @@
 .\"***************************************************************************
 .\"***************************************************************************

-.\" Copyright (c) 1998-2003,2005 Free Software Foundation, Inc.              *
+.\" Copyright 2018-2019,2020 Thomas E. Dickey                                *
+.\" Copyright 1998-2006,2010 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            *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
 .\" copy of this software and associated documentation files (the            *


@@ -26,40 +27,44 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"

-.\" $Id: curs_scroll.3x,v 1.12 2005/05/15 16:19:01 tom Exp $
+.\" $Id: curs_scroll.3x,v 1.19 2020/10/24 09:45:48 tom Exp $

 .TH curs_scroll 3X ""
 .TH curs_scroll 3X ""

+.ie \n(.g .ds `` \(lq
+.el       .ds `` ``
+.ie \n(.g .ds '' \(rq
+.el       .ds '' ''

 .na
 .hy 0
 .SH NAME
 \fBscroll\fR,
 \fBscrl\fR,
 .na
 .hy 0
 .SH NAME
 \fBscroll\fR,
 \fBscrl\fR,

-\fBwscrl\fR - scroll a \fBcurses\fR window
+\fBwscrl\fR \- scroll a \fBcurses\fR window

 .ad
 .hy
 .SH SYNOPSIS
 \fB#include <curses.h>\fR
 .ad
 .hy
 .SH SYNOPSIS
 \fB#include <curses.h>\fR

-
-\fBint scroll(WINDOW *win);\fR
+.sp
+\fBint scroll(WINDOW *\fP\fIwin\fP\fB);\fR
+.sp
+\fBint scrl(int \fP\fIn\fP\fB);\fR

 .br
 .br

-\fBint scrl(int n);\fR
-.br
-\fBint wscrl(WINDOW *win, int n);\fR
+\fBint wscrl(WINDOW *\fP\fIwin\fP\fB, int \fP\fIn\fP\fB);\fR

 .br
 .SH DESCRIPTION
 The \fBscroll\fR routine scrolls the window up one line.
 This involves moving
 the lines in the window data structure.
 As an optimization, if the scrolling
 .br
 .SH DESCRIPTION
 The \fBscroll\fR routine scrolls the window up one line.
 This involves moving
 the lines in the window data structure.
 As an optimization, if the scrolling

-region of the window is the entire screen, the physical screen may be scrolled
-at the same time.
-
+region of the window is the entire screen,
+the \fIphysical screen\fP may be scrolled at the same time.
+.PP

 For positive \fIn\fR, the \fBscrl\fR and \fBwscrl\fR routines scroll the
 window up \fIn\fR lines (line \fIi\fR+\fIn\fR becomes \fIi\fR); otherwise
 scroll the window down \fIn\fR lines.
 This involves moving the lines in the
 window character image structure.
 The current cursor position is not changed.
 For positive \fIn\fR, the \fBscrl\fR and \fBwscrl\fR routines scroll the
 window up \fIn\fR lines (line \fIi\fR+\fIn\fR becomes \fIi\fR); otherwise
 scroll the window down \fIn\fR lines.
 This involves moving the lines in the
 window character image structure.
 The current cursor position is not changed.

-
+.PP

 For these functions to work, scrolling must be enabled via \fBscrollok\fR.
 .SH RETURN VALUE
 These routines return \fBERR\fR upon failure, and \fBOK\fR (SVr4 only specifies
 For these functions to work, scrolling must be enabled via \fBscrollok\fR.
 .SH RETURN VALUE
 These routines return \fBERR\fR upon failure, and \fBOK\fR (SVr4 only specifies


@@ -72,14 +77,14 @@ if the window pointer is null, or
 if scrolling is not enabled in the window, e.g., with \fBscrollok\fP.
 .SH NOTES
 Note that \fBscrl\fR and \fBscroll\fR may be macros.
 if scrolling is not enabled in the window, e.g., with \fBscrollok\fP.
 .SH NOTES
 Note that \fBscrl\fR and \fBscroll\fR may be macros.

-
+.PP

 The SVr4 documentation says that the optimization of physically scrolling
 The SVr4 documentation says that the optimization of physically scrolling

-immediately if the scroll region is the entire screen "is" performed, not
-"may be" performed.
+immediately if the scroll region is the entire screen \*(``is\*('' performed, not
+\*(``may be\*('' performed.

 This implementation deliberately does not guarantee
 that this will occur, to leave open the possibility of smarter
 optimization of multiple scroll actions on the next update.
 This implementation deliberately does not guarantee
 that this will occur, to leave open the possibility of smarter
 optimization of multiple scroll actions on the next update.

-
+.PP

 Neither the SVr4 nor the XSI documentation specify whether the current
 attribute or
 current color-pair of blanks generated by the scroll function is zeroed.
 Neither the SVr4 nor the XSI documentation specify whether the current
 attribute or
 current color-pair of blanks generated by the scroll function is zeroed.


@@ -88,9 +93,3 @@ Under this implementation it is.
 The XSI Curses standard, Issue 4 describes these functions.
 .SH SEE ALSO
 \fBcurses\fR(3X), \fBcurs_outopts\fR(3X)
 The XSI Curses standard, Issue 4 describes these functions.
 .SH SEE ALSO
 \fBcurses\fR(3X), \fBcurs_outopts\fR(3X)

-.\"#
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