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insch(3ncurses)


NAME

   insch,  winsch, mvinsch, mvwinsch - insert a character before cursor in
   a curses 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 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.

RETURN VALUE

   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.

NOTES

   These  routines  do  not  necessarily  imply  use  of a hardware insert
   character feature.

   Note that insch, mvinsch, and mvwinsch may be macros.

PORTABILITY

   These functions are described in the XSI Curses standard, Issue 4.

SEE ALSO

   ncurses(3NCURSES).

   Comparable functions  in  the  wide-character  (ncursesw)  library  are
   described in ins_wch(3NCURSES).

                                                           insch(3NCURSES)



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