xref: /titanic_41/usr/src/man/man3xcurses/meta.3xcurses (revision 6319b0c72e1681f79a5f33dfa976a63eedd4a2a4)
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meta 3XCURSES "5 Jun 2002" "SunOS 5.11" "X/Open Curses Library Functions"
NAME
meta - enable/disable meta keys
SYNOPSIS

cc [ flag... ] file... -I /usr/xpg4/include  -L  /usr/xpg4/lib \e
 -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(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilityStandard
MT-LevelUnsafe
SEE ALSO

getch(3XCURSES), libcurses(3XCURSES), attributes(5), standards(5)