META(3XCURSES) X/Open Curses Library Functions META(3XCURSES)

NAME

meta - enable/disable meta keys

SYNOPSIS

cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib \
-R /usr/xpg4/lib -lcurses [ library... ]

c89 [ flag... ] file... -lcurses [ library... ]

#include <curses.h>

int meta(WINDOW *win, bool bf);

PARAMETERS

win
Is an ignored parameter.


bf
Is a Boolean expression.

DESCRIPTION

Whether a terminal returns 7 or 8 significant bits initially depends
on the control mode of the terminal driver. The meta() function
forces the number of bits to be returned by getch(3XCURSES) to be 7
(if bf is FALSE) or 8 (if bf is TRUE).


If the program handling the data can only pass 7-bit characters or
strips the 8th bit, 8 bits cannot be handled.


If the terminfo capabilities smm (meta_on) and rmm (meta_off) are
defined for the terminal, smm is sent to the terminal when meta(win,
TRUE) is called, and rmm is sent when meta(win, FALSE) is called.


This function is useful when extending the non-text command set in
applications where the META key is used.

RETURN VALUES

On success, the meta() function returns OK. Otherwise, it returns
ERR.

ERRORS

None.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+
|MT-Level | Unsafe |
+--------------------+-----------------+

SEE ALSO

getch(3XCURSES), libcurses(3XCURSES), attributes(7), standards(7)

June 5, 2002 META(3XCURSES)