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man pages section 3: Curses Library Functions

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Updated: Thursday, June 13, 2019
 
 

waddstr(3XCURSES)

Name

addnstr, addstr, mvaddnstr, mvaddstr, mvwaddnstr, mvwaddstr, waddnstr, waddstr - add a multi-byte character string (without rendition) to a window

Synopsis

cc [ flag... ] file... –I /usr/xpg4/include –L /usr/xpg4/lib \
–R /usr/xpg4/lib –lcurses [ library... ]

c89 [ flag... ] file... –lcurses [ library ... ]
 
#include <curses.h>

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

Description

The addstr() function writes a null-terminated string of multi-byte characters to the stdscr window at the current cursor position. The waddstr() function performs an identical action, but writes the character to the window specified by win. The mvaddstr() and mvwaddstr() functions write the string to the position indicated by the x (column) and y (row) parameters (the former to the stdscr window; the latter to window win).

The addnstr(), waddnstr(), mvaddnstr(), and mvwaddnstr() functions are similar but write at most n characters to the window. If n is less than 0, the entire string is written.

All of these functions advance the cursor after writing the string.

These functions are functionally equivalent to calling the corresponding function from the addch(3XCURSES) set of functions once for each character in the string. Refer to the curses(3XCURSES) man page for a complete description of special character handling and of the interaction between the window rendition (or background character and rendition) and the character written.

Note that these functions differ from the addchstr() set of functions in that the addchstr(3XCURSES) functions copy the string as is (without combining each character with the window rendition or the background character and rendition.

Parameters

str

Is a pointer to the character string that is to be written to the window.

n

Is the maximum number of characters to be copied from str. If n is less than 0, the entire string is written or as much of it as fits on the line.

y

Is the y (row) coordinate of the starting position of str in the window.

x

Is the x (column) coordinate of the starting position of str in the window.

win

Is a pointer to the window in which the string is to be written.

Return Values

On success, these functions return OK. Otherwise, they return ERR.

Errors

None.

Attributes

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
Unsafe
Standard

See Also

addch(3XCURSES), addchstr(3XCURSES), curses(3XCURSES), libcurses(3XCURSES), attributes(7), standards(7)