curs_deleteln(3) UNIX Programmer's Manual curs_deleteln(3)
deleteln, wdeleteln, insdelln, winsdelln, insertln, win-
sertln - delete and insert lines in a curses window
#include <curses.h>
int deleteln(void);
int wdeleteln(WINDOW *win);
int insdelln(int n);
int winsdelln(WINDOW *win, int n);
int insertln(void);
int winsertln(WINDOW *win);
The deleteln and wdeleteln routines delete the line under
the cursor in the window; all lines below the current line
are moved up one line. The bottom line of the window is
cleared. The cursor position does not change.
The insdelln and winsdelln routines, for positive n, insert
n lines into the specified window above the current line.
The n bottom lines are lost. For negative n, delete n lines
(starting with the one under the cursor), and move the
remaining lines up. The bottom n lines are cleared. The
current cursor position remains the same.
The insertln and winsertln routines insert a blank line
above the current line and the bottom line is lost.
All routines return the integer ERR upon failure and an OK
(SVr4 specifies only "an integer value other than ERR") upon
successful completion.
X/Open defines no error conditions. In this implementation,
if the window parameter is null, an error is returned.
These functions are described in the XSI Curses standard,
Issue 4. The standard specifies that they return ERR on
failure, but specifies no error conditions.
Note that all but winsdelln may be macros.
These routines do not require a hardware line delete or
insert feature in the terminal. In fact, they won't use
hardware line delete/insert unless idlok(..., TRUE) has been
set on the current window.
MirBSD #10-current Printed 2022-12-23 1
curs_deleteln(3) UNIX Programmer's Manual curs_deleteln(3)
curses(3)
MirBSD #10-current Printed 2022-12-23 2