curs_ins_wch
Section: Library calls (3X)
Updated: 202-1-20
Index
Return to Main Contents
NAME
ins_wch,
wins_wch,
mvins_wch,
mvwins_wch -
insert a
curses complex character in a window
SYNOPSIS
#include <curses.h>
int ins_wch(const cchar_t * wch);
int wins_wch(WINDOW * win, const cchar_t * wch);
int mvins_wch(int y, int x, const cchar_t * wch);
int mvwins_wch(WINDOW * win, int y, int x, const cchar_t * wch);
DESCRIPTION
wins_wch
inserts the
curses
complex character
wch
at the cursor position in the window
win.
The character previously at the cursor and any to its right move one
cell to the right;
the formerly rightmost character on the line is discarded.
Unlike
add_wch(3X),
wins_wch
does not advance the cursor.
ncurses(3X) describes the variants of this function.
RETURN VALUE
These functions return
OK
on success and
ERR
on failure.
In
ncurses,
they return
ERR
if
.IP * 4
the
curses
screen has not been initialized,
or
.IP * 4
(for functions taking a
WINDOW
pointer argument)
win
is a null pointer.
Functions prefixed with "mv" first perform cursor movement and
fail if the position
(y,
x)
is outside the window boundaries.
NOTES
ins_wch,
mvins_wch,
and
mvwins_wch
may be implemented as macros.
curses
does not necessarily employ the terminal's
insert_character
(ich1)
capability to achieve insertion.
PORTABILITY
X/Open Curses Issue 4 describes these functions.
It specifies no error conditions for them.
HISTORY
X/Open Curses Issue 4 (1995) initially specified these functions.
The System V Interface Definition Version 4
of the same year
specified a function named
winswch
(and the usual variants).
This was a later addition to
SVr4.
x,
not appearing in the first SVr4 (1989).
It differed from X/Open's later
wins_wch
in that it took an argument of type
chtype
instead of
cchar_t.
SEE ALSO
curs_insch(3X) describes comparable functions in the
no-wid-character
curses
configuration.
curses(3X),
terminfo(5)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- NOTES
-
- PORTABILITY
-
- HISTORY
-
- SEE ALSO
-
|
|
- Running on 
-
:
