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curs_getstr(3)                                                curs_getstr(3)




NAME

       getstr, getnstr, wgetstr, wgetnstr, mvgetstr, mvgetnstr, mvwgetstr,
       mvwgetnstr - accept character strings from curses terminal keyboard


SYNOPSIS

       #include <curses.h>

       int getstr(char *str);
       int getnstr(char *str, int n);
       int wgetstr(WINDOW *win, char *str);
       int wgetnstr(WINDOW *win, char *str, int n);
       int mvgetstr(int y, int x, char *str);
       int mvwgetstr(WINDOW *win, int y, int x, char *str);
       int mvgetnstr(int y, int x, char *str, int n);
       int mvwgetnstr(WINDOW *, int y, int x, char *str, int n);


DESCRIPTION

       The function getstr is equivalent to a series of calls to getch,  until
       a  newline or carriage return is received (the terminating character is
       not included in the returned string).  The resulting value is placed in
       the area pointed to by the character pointer str.

       wgetnstr  reads  at most n characters, thus preventing a possible over-
       flow of the input buffer.  Any attempt to enter more characters  (other
       than  the terminating newline or carriage return) causes a beep.  Func-
       tion keys also cause a beep and  are  ignored.   The  getnstr  function
       reads from the stdscr default window.

       The  user's  erase and kill characters are interpreted.  If keypad mode
       is on for the window, KEY_LEFT and KEY_BACKSPACE  are  both  considered
       equivalent to the user's kill character.

       Characters  input  are  echoed  only  if echo is currently on.  In that
       case, backspace is echoed as deletion of the previous character  (typi-
       cally a left motion).


RETURN VALUE

       All routines return the integer ERR upon failure and an OK (SVr4 speci-
       fies only "an integer value other than ERR")  upon  successful  comple-
       tion.

       X/Open defines no error conditions.

       In  this  implementation, these functions return an error if the window
       pointer is null, or if its timeout expires without having any data.

       This implementation provides an extension as well.  If a  SIGWINCH  in-
       terrupts the function, it will return KEY_RESIZE rather than OK or ERR.

       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 getstr, mvgetstr, and mvwgetstr may be macros.


PORTABILITY

       These functions are described in the  XSI  Curses  standard,  Issue  4.
       They  read  single-byte  characters only.  The standard does not define
       any error conditions.  This implementation returns ERR  if  the  window
       pointer  is null, or if the lower-level wgetch(3X) call returns an ERR.

       SVr3 and early SVr4 curses  implementations  did  not  reject  function
       keys;  the  SVr4.0  documentation  claimed that "special keys" (such as
       function keys, "home" key, "clear" key, etc.) are "interpreted",  with-
       out  giving details.  It lied.  In fact, the "character" value appended
       to the string by those implementations was predictable but  not  useful
       (being, in fact, the low-order eight bits of the key's KEY_ value).

       The  functions  getnstr, mvgetnstr, and mvwgetnstr were present but not
       documented in SVr4.


SEE ALSO

       curses(3X), curs_getch(3X), curs_variables(3X).



                                                               curs_getstr(3)

ncurses 6.0 - Generated Sat May 6 18:05:49 CDT 2017
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