curs_insch(3X)

NAME
insch, winsch, mvinsch, mvwinsch - insert a curses character in a window

SYNOPSIS
#include <curses.h>

int insch(chtype ch);
int winsch(WINDOW * win, chtype ch);
int mvinsch(int y, int x, chtype ch);
int mvwinsch(WINDOW * win, int y, int x, chtype ch);

DESCRIPTION
These functions insert the curses character ch at the cursor in the specified window win (or stdscr). The character previously at the cursor and any to its right move one cell to the right; the rightmost character on the line is discarded. The cursor does not advance.

RETURN VALUE
These functions return OK on success and ERR on failure.

Functions taking a WINDOW pointer argument fail if the pointer is NULL.

Functions prefixed with “mv” first perform cursor movement and fail if the position (y, x) is outside the window boundaries.

NOTES
insch, mvinsch, and mvwinsch may be implemented as macros.

A terminal's insert_character (ich1) capability is not necessarily employed.

PORTABILITY
X/Open Curses, Issue 4 describes these functions.

SVr4 curses describes a successful return value only as “an integer value other than ERR”.

HISTORY
SVr2 (1984) introduced winsch.

SEE ALSO
curs_ins_wch(3X) describes comparable functions in the wide-character curses configuration.

curses(3X), terminfo(5)