insch3ncurses
Insert a curses character in a window
Usage
#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);
Overview
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 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
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 describes a successful return value only as “an integer value other than ERR”.
Releases
18 releases since Debian 1.1 (Buzz); the text changed 12 times.