baudrate, erasechar, erasewchar, has_ic,
has_il, killchar, killwchar, longname,
term_attrs, termattrs, termname - curses
environment query routines
#include <ncurses/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);
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.
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.
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.
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.
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.
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.
The termname routine returns the terminal name used by setupterm.
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.
Note that termattrs may be a macro.
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.