curs_insch(3x)                                           curs_insch(3x)
       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  charac-
       ter  under the cursor.  All characters to the right of the
       cursor are moved one space to the right, with  the  possi-
       bility  of the rightmost character on the line being lost.
       The insertion operation does not change the  cursor  posi-
       tion.
       All  routines that return an integer return ERR upon fail-
       ure 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  move-
       ment  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).
                                                         curs_insch(3x)