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

       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.

       SVr2 (1984) introduced winsch.

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

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

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

       X/Open Curses Issue 4 describes these functions.

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

       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.

ins_wch(3NCURSES) describes comparable functions in the wide-character curses configuration.

       ncurses(3NCURSES), terminfo(5)

ncurses 6.5                                        2025-02-01                                    insch(3NCURSES)

#include<curses.h>intinsch(chtypech);intwinsch(WINDOW*win,chtypech);intmvinsch(inty,intx,chtypech);intmvwinsch(WINDOW*win,inty,intx,chtypech);