curs_insch(3X) manual page
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insch, winsch, mvinsch, mvwinsch - insert
a character before cursor in a curses window
#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);
These routines insert the character ch before the character
under the cursor. All characters to the right of the cursor are moved one
space to the right, with the possibility of the rightmost character on
the line being lost. The insertion operation does not change the cursor
position.
All routines that return an integer return ERR upon
failure and OK (SVr4 specifies only "an integer value other than ERR")
upon successful completion, unless otherwise noted in the preceding routine
descriptions.
Functions with a "mv" prefix first perform a cursor movement
using wmove, and return an error if the position is outside the window,
or if the window pointer is null.
These routines do not necessarily
imply use of a hardware insert character feature.
Note that insch, mvinsch,
and mvwinsch may be macros.
These functions are described in
the XSI Curses standard, Issue 4.
curses(3X)
.
Comparable functions
in the wide-character (ncursesw)
library are described in curs_ins_wch(3X)
.
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