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man pages section 3: Curses Library Functions

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Updated: Thursday, June 13, 2019
 
 

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
Committed
MT-Level
Unsafe
Standard

See Also

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