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curs_addstr 3x 2024-12-28 ncurses 6.5 Library calls

curs_addstr(3x)                  Library calls                 curs_addstr(3x)

NAME

       addstr,  waddstr,  mvaddstr,  mvwaddstr,  addnstr, waddnstr, mvaddnstr,
       mvwaddnstr - add a string to a curses window and advance the cursor

SYNOPSIS

       #include <curses.h>

       int addstr(const char * str);
       int waddstr(WINDOW * win, const char * str);
       int mvaddstr(int y, int x, const char * str);
       int mvwaddstr(WINDOW * win, int y, int x, const char * str);

       int addnstr(const char * str, int n);
       int waddnstr(WINDOW * win, const char * str, int n);
       int mvaddnstr(int y, int x, const char * str, int n);
       int mvwaddnstr(WINDOW * win, int y, int x, const char * str, int n);

DESCRIPTION

       waddstr writes the characters of the (null-terminated)  string  str  to
       the window win, as if by calling waddch(3x) for each char in str.

       waddnstr  is  similar,  but  writes  at most n characters.  If n is -1,
       waddnstr writes the entire string.

       ncurses(3x) describes the variants of these functions.

RETURN VALUE

       These functions return OK on success and ERR on failure.

       In ncurses, they return ERR if

       o   win is NULL,

       o   str is NULL, or

       o   an internal waddch(3x) call returns ERR.

       Functions prefixed with "mv" first perform cursor movement and fail  if
       the position (y, x) is outside the window boundaries.

NOTES

       All of these functions except waddnstr may be macros.

PORTABILITY

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

HISTORY

       4BSD (1980) curses introduced waddstr  along  with  its  variants,  the
       latter defined as macros.

       SVr3.1 (1987) added waddnstr (and its variants) redefining waddstr as a
       macro wrapping it.