Provided by: ncurses-doc_6.4+20240113-1ubuntu2_all bug

NAME

       instr, innstr, winstr, winnstr, mvinstr, mvinnstr, mvwinstr, mvwinnstr - get a string 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,  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 (exclusive of the trailing NUL).  Transfer stops at the end of the current
       line, or when n characters have been stored at the location referenced by str.

RETURN VALUE

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

       X/Open Curses defines no error conditions.  This implementation returns an error

       •   if the win parameter is null or

       •   if the chstr parameter is null.

       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

       All routines except winnstr may be macros.

       Reading a line that overflows the array pointed to by str with instr, mvinstr, mvwinstr or
       winstr causes undefined results.  Therefore, the use of innstr,  mvinnstr,  mvwinnstr,  or
       winnstr is recommended.

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

       ncurses(3NCURSES),       inch(3NCURSES),       inchstr(3NCURSES),        inwstr(3NCURSES),
       in_wchstr(3NCURSES)