termattrs(3)
NAME
baudrate, erasechar, erasewchar, has_ic, has_il, killchar, killwchar,
longname, term_attrs, termattrs, termname - curses environment query
routines
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);
DESCRIPTION
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 deletecharacter 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.
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.
NOTES
Note that termattrs may be a macro.
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.