NAME
curses_insdelln,
insdelln,
winsdelln —
curses insert or delete
lines routines
LIBRARY
Curses Library (libcurses, -lcurses)
SYNOPSIS
#include <curses.h>
int
insdelln(
int
n);
int
winsdelln(
WINDOW
*win,
int n);
DESCRIPTION
These functions insert or delete lines on
stdscr
or on
the specified window.
If
insdelln() is called with a positive number in
n, then the specified number of lines are inserted
before the current line on
stdscr
. The last
n lines of the screen are no longer displayed. If
n is negative, then
n lines are
deleted from
stdscr
, starting at the current line. The
last
n lines of
stdscr
are
cleared.
The
winsdelln() function is the same as the
insdelln() function, excepting that lines are inserted or
deleted from the window specified by
win.
If a scrolling region has been set with the
setscrreg() or
wsetscrreg() functions and the current cursor position is
inside the scrolling region, then only the lines from the current line to the
bottom of the scrolling region are affected.
RETURN VALUES
Functions returning pointers will return
NULL
if an
error is detected. The functions that return an int will return one of the
following values:
OK
- The function completed successfully.
ERR
- An error occurred in the function.
SEE ALSO
curses_deleteln(3),
curses_insertln(3),
curses_scroll(3)
STANDARDS
The
NetBSD Curses library complies with the X/Open
Curses specification, part of the Single Unix Specification.
HISTORY
The Curses package appeared in
4.0BSD.