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curs_addchstr(3X) Library calls curs_addchstr(3X) NAME addchstr, waddchstr, mvaddchstr, mvwaddchstr, addchnstr, waddchnstr, mvaddchnstr, mvwaddchnstr - add a curses character string to a window SYNOPSIS #include <curses.h> int addchstr(const chtype * chstr); int waddchstr(WINDOW * win, const chtype * chstr); int mvaddchstr(int y, int x, const chtype * chstr); int mvwaddchstr(WINDOW * win, int y, int x, const chtype * chstr); int addchnstr(const chtype * chstr, int n); int waddchnstr(WINDOW * win, const chtype * chstr, int n); int mvaddchnstr(int y, int x, const chtype * chstr, int n); int mvwaddchnstr(WINDOW * win, int y, int x, const chtype * chstr, int n); DESCRIPTION waddchstr copies the string of curses characters chstr to the window win. A null curses character terminates the string. waddchnstr does the same, but copies at most n characters, or as many as possible if n is -1. ncurses(3X) describes the variants of these functions. Because these functions do not call waddch(3X) internally, they are faster than waddstr(3X) and waddnstr(3X). On the other hand, they • do not treat the backspace, carriage return, or line feed charac- ters specially; • do not represent unprintable characters with unctrl(3X); • do not update the cursor position to follow the last character written; and • truncate the string at the window's right margin, rather than wrap- ping it to the next line and potentially scrolling. RETURN VALUE These functions return OK on success and ERR on failure. In ncurses, these functions fail if • the curses screen has not been initialized, • chstr is a null pointer, or • (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 All of these functions except waddchnstr may be implemented as macros. 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 SVr3.1 (1987) introduced these functions. SEE ALSO curs_add_wchstr(3X) describes comparable functions of the ncurses li- brary in its wide-character configuration (ncursesw). curses(3X), curs_addch(3X), curs_addstr(3X) ncurses 6.6 2025-08-16 curs_addchstr(3X)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | PORTABILITY | HISTORY | SEE ALSO
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