| CURSES_INSDEL(3) | Library Functions Manual | CURSES_INSDEL(3) | 
curses_insdelln, insdelln,
  winsdelln —
#include <curses.h>
int
  
  insdelln(int
    n);
int
  
  winsdelln(WINDOW
    *win, int n);
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.
NULL if an
  error is detected. The functions that return an int will return one of the
  following values:
OKERR| August 12, 2002 | NetBSD 9.4 |