eucioctl.h File

AIX Version 4 Files Reference

eucioctl.h File

Purpose

Defines ioctl operations and data types for handling EUC code sets.

Description

The eucioctl.h file contains information used for handling Extended UNIX Code (EUC) multibyte code sets. It consists of ioctl operations and the related data structure.

The eucioc structure contains the following fields:

`eucw[4]`	Specifies the memory width of the code set. It indicates the number of bytes used to store the multibyte characters of each of the four classes.
`scrw[4]`	Specifies the screen width of the code set. It indicates the number of columns used to display the multibyte characters of each of the four classes.

This structure is used in the following ioctl operations:

EUC_WGET	Returns the EUC character widths. The eucioc structure is filled with the memory and screen widths of the current EUC code set.
EUC_WSET	Sets the EUC character widths. The eucioc structure is used to set the memory and screen widths of the current EUC code set.

Implementation Specifics

This file is part of the Base Operating System (BOS) Runtime.

Related Information

The ioctl subroutine.

tty Subsystem Overview in AIX General Programming Concepts: Writing and Debugging Programs.

Understanding Converter Modules in AIX General Programming Concepts: Writing and Debugging Programs.