# curs_delch 3x 2025-04-05 ncurses 6.6 Library calls

    curs_delch(3x)                   Library calls                  curs_delch(3x)

## NAME

           delch,  wdelch,  mvdelch,  mvwdelch  - delete a character from a curses
           window

## SYNOPSIS

           #include <curses.h>

           int delch(void);
           int wdelch(WINDOW * win);
           int mvdelch(int y, int x);
           int mvwdelch(WINDOW * win, int y, int x);

## DESCRIPTION

           wdelch deletes the character at the cursor position in win.   It  moves
           all  characters to the right of the cursor on the same line to the left
           one position and replaces the contents of the rightmost position on the
           line with  the  window's  background  character;  see  bkgd(3x)  (wide-
           character  API users: bkgrnd(3x)).  The cursor position does not change
           (after moving to (y, x),  if  specified).   ncurses(3x)  describes  the
           variants of this function.

## RETURN VALUE

           These functions return OK on success and ERR on failure.

           In ncurses, these functions fail if

           o   the curses screen has not been initialized, or

           o   (for  functions  taking  a  WINDOW  pointer argument) 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

           delch, mvdelch, and mvwdelch may be implemented as macros.

           A  terminal's  delete_character  (dch1)  capability  is not necessarily
           employed.

## PORTABILITY

           X/Open Curses Issue 4 describes these functions.  It specifies no error
           conditions for them.

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

## HISTORY

           SVr2 (1984) introduced wdelch.

## SEE ALSO

           curses(3x)

    ncurses 6.6                       2025-04-05                    curs_delch(3x)