# curs_instr 3x

    curs_instr(3x)                                                  curs_instr(3x)

## NAME

           instr,  innstr, winstr, winnstr, mvinstr, mvinnstr, mvwinstr, mvwinnstr
           - get a string of characters from a curses window

## SYNOPSIS

           #include <curses.h>

           int instr(char *str);
           int innstr(char *str, int n);
           int winstr(WINDOW *win, char *str);
           int winnstr(WINDOW *win, char *str, int n);
           int mvinstr(int y, int x, char *str);
           int mvinnstr(int y, int x, char *str, int n);
           int mvwinstr(WINDOW *win, int y, int x, char *str);
           int mvwinnstr(WINDOW *win, int y, int x, char *str, int n);

## DESCRIPTION

           These routines return a string of characters in str, extracted starting
           at  the  current  cursor  position in the named window.  Attributes are
           stripped from the characters.  The four functions with n  as  the  last
           argument  return  a leading substring at most n characters long (exclu-
           sive of the trailing NUL).

## RETURN VALUE

           All of the functions return ERR upon failure, or the number of  charac-
           ters actually read into the string.

           X/Open Curses defines no error conditions.  In this implementation:

           o   If the win parameter is null, an error is returned,

           o   If the chstr parameter is null, an error is returned,

           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

           Note that all routines except winnstr may be macros.

## PORTABILITY

           SVr4  does not document whether a length limit includes or excludes the
           trailing NUL.

           The ncurses library extends the XSI description by allowing a  negative
           value  for  n.  In this case, the functions return the string ending at
           the right margin.

## SEE ALSO

           curses(3x).

                                                                    curs_instr(3x)