curs_get_wstr(3X)curs_get_wstr(3X)NAME
get_wstr, getn_wstr, wget_wstr, wgetn_wstr, mvget_wstr,
mvgetn_wstr, mvwget_wstr, mvwgetn_wstr - get an array of
wide characters from a curses terminal keyboard
SYNOPSIS
#include <curses.h>
int get_wstr(wint_t *wstr);
int getn_wstr(wint_t *wstr, int n);
int wget_wstr(WINDOW *win, wint_t *wstr);
int wgetn_wstr(WINDOW *win, wint_t *wstr, int n);
int mvget_wstr(int y, int x, wint_t *wstr);
int mvgetn_wstr(int y, int x, wint_t *wstr, int n);
int mvwget_wstr(WINDOW *win, int y, int x, wint_t *wstr);
int mvwgetn_wstr(WINDOW *win, int y, int x, wint_t *wstr, int n);
DESCRIPTION
The effect of get_wstr is as though a series of calls to
get_wch were made, until a newline, other end-of-line, or
end-of-file condition is processed. An end-of-file condi-
tion is represented by WEOF, as defined in <wchar.h>. The
newline and end-of-line conditions are represented by the
\n wchar_t value. In all instances, the end of the string
is terminated by a null wchar_t. The routine places
resulting values in the area pointed to by wstr.
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 pre-
vious character (typically a left motion).
The effect of wget_wstr is as though a series of calls to
wget_wch were made.
The effect of mvget_wstr is as though a call to move and
then a series of calls to get_wch were made.
The effect of mvwget_wstr is as though a call to wmove and
then a series of calls to wget_wch were made.
The getn_wstr, mvgetn_wstr, mvwgetn_wstr, and wgetn_wstr
functions are identical to the get_wstr, mvget_wstr,
mvwget_wstr, and wget_wstr functions, respectively, except
that the *n_* versions read at most n characters, letting
the application prevent overflow of the input buffer.
NOTES
Using get_wstr, mvget_wstr, mvwget_wstr, or wget_wstr to
read a line that overflows the array pointed to by wstr
causes undefined results. The use of getn_wstr,
mvgetn_wstr, mvwgetn_wstr, or wgetn_wstr, respectively, is
recommended.
These functions cannot return KEY_ values because there is
no way to distinguish a KEY_ value from a valid wchar_t
value.
All of these routines except wgetn_wstr may be macros.
RETURN VALUES
All of these functions return OK upon successful comple-
tion. Otherwise, they return ERR.
PORTABILITY
These functions are described in The Single Unix Specifi-
cation, Version 2. No error conditions are defined. This
implementation returns ERR if the window pointer is null,
or if the lower-level wget_wch call returns an ERR. In
the latter case, an ERR return without other data is
treated as an end-of-file condition, and the returned
array contains a WEOF followed by a null wchar_t.
SEE ALSO
Functions: curses(3X), curs_get_wch(3X), curs_getstr(3X).
curs_get_wstr(3X)
