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Extended Attributes

The field attributes cannot store all of the information about the fields and characters in the presentation space. Extended character and color attributes for each field and character in the presentation space are also stored.

Each field has an extended attribute byte (EAB) that defines the extended attributes for that field. Extended attributes are returned using the getExtPS method for any of the Screen object types.

Extended character attributes define characteristics that apply to the entire field. Extended character attributes control character attributes such as:

Extended color attributes define the foreground and background colors for each character in a field.

Extended Character Attributes

The following table lists all of the possible extended character attributes, and indicates whether or not each attribute applies to a particular Screen object type (3270, 5250, T27, UTS, or VT).

Caution The ALC emulation is driven by a 7-bit protocol that does not include field attributes.
Attribute Value 3270 5250 T27 UTS VT
Blink Blink X X X X X
Bold Bold         X
Bright Bright     X    
Dim Dim       X  
Double height DoubleHeight         X
Double width DoubleWidth         X
Left column separator LeftColSep   X   X  
Normal Normal X        
Reverse Reverse X X X X X
Secure Secure     X X X
Strikethrough StrikeThrough       X  
Top/Bottom Top_Bottom         X
Underscore Underscore X X X X X
Upperscore Upper       X  

Extended Color Attributes

The following tables list all of the possible foreground and background colors. These colors are applicable to 3270, 5250, UTS, and VT Screen object types.

Note There are no extended color attributes for T27 terminal sessions.

Foreground Colors

Following are the valid foreground colors for each Screen object type:

FgBlack

FgBlue

FgGreen

FgCyan

FgRed

FgMagenta

FgYellow

FgWhite

FgGray

FgDarkBlue

FgDarkGreen

FgDarkCyan

FgDarkRed

FgDarkMagenta

FgDarkYellow

FgDarkGray

Background Colors

Following are the valid background colors for each Screen object type:

BgBlack

BgBlue

BgGreen

BgCyan

BgRed

BgMagenta

BgYellow

BgWhite

BgGray

BgDarkBlue

BgDarkGreen

BgDarkCyan

BgDarkRed

BgDarkMagenta

BgDarkYellow

BgDarkGray

Related Topics
Fields and Attributes
The Presentation Space
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