подпрограммы библиотеки Curses запросов к среде (curses environment query routines)
Имя (Name)
baudrate, erasechar, erasewchar, has_ic, has_il, killchar,
killwchar, longname, term_attrs, termattrs, termname - curses
environment query routines
Синопсис (Synopsis)
#include <curses.h>
int baudrate(void);
char erasechar(void);
int erasewchar(wchar_t *ch);
bool has_ic(void);
bool has_il(void);
char killchar(void);
int killwchar(wchar_t *ch);
char *longname(void);
attr_t term_attrs(void);
chtype termattrs(void);
char *termname(void);
Описание (Description)
baudrate
The baudrate routine returns the output speed of the terminal.
The number returned is in bits per second, for example 9600, and
is an integer.
erasechar, erasewchar
The erasechar routine returns the user's current erase character.
The erasewchar routine stores the current erase character in the
location referenced by ch. If no erase character has been
defined, the routine fails and the location referenced by ch is
not changed.
has_is, has_il
The has_ic routine is true if the terminal has insert- and
delete- character capabilities.
The has_il routine is true if the terminal has insert- and
delete-line capabilities, or can simulate them using scrolling
regions. This might be used to determine if it would be
appropriate to turn on physical scrolling using scrollok.
killchar, killwchar
The killchar routine returns the user's current line kill
character.
The killwchar routine stores the current line-kill character in
the location referenced by ch. If no line-kill character has
been defined, the routine fails and the location referenced by ch
is not changed.
longname
The longname routine returns a pointer to a static area
containing a verbose description of the current terminal. The
maximum length of a verbose description is 128 characters. It is
defined only after the call to initscr or newterm. The area is
overwritten by each call to newterm and is not restored by
set_term, so the value should be saved between calls to newterm
if longname is going to be used with multiple terminals.
termattrs, term_attrs
If a given terminal does not support a video attribute that an
application program is trying to use, curses may substitute a
different video attribute for it. The termattrs and term_attrs
functions return a logical OR of all video attributes supported
by the terminal using A_ and WA_ constants respectively. This
information is useful when a curses program needs complete
control over the appearance of the screen.
termname
The termname routine returns the terminal name used by setupterm.
Возвращаемое значение (Return value)
longname and termname return NULL on error.
Routines that return an integer return ERR upon failure and OK
(SVr4 only specifies "an integer value other than ERR") upon
successful completion.
Примечание (Note)
Note that termattrs may be a macro.
Портативность (Portability)
The XSI Curses standard, Issue 4 describes these functions. It
changes the return type of termattrs to the new type attr_t.
Most versions of curses truncate the result returned by termname
to 14 characters.
Смотри также (See also)
curses(3X), curs_initscr(3X), curs_outopts(3X)
