Table 3–1: User-interface Features
Feature
|
Character
|
Windows
|
Application interface
|
A single screen with multiple frames.
|
Multiple windows and dialog boxes.
|
Multiple windows
|
Only one pseudo-window.
|
Multiple windows are useful and desirable.
|
Buttons
|
Clumsy without equivalent keystroke.
|
Useful and desirable.
|
Images
|
Not available.
|
Desirable (.BMP , .ICO ).
|
Color
|
Not always available; colors that are desirable on one terminal often are not on another.
|
All colors might not be available on all machines, and the same RGB numeric color might appear differently on different terminals.
|
Multiple fonts
|
Not available.
|
Achievable, but desired fonts might not exist on all machines.
|
Widget sizes
|
Inner and outer sizes are the same.
|
Inner and outer sizes are different; borders vary.
|
Inner size (Format Characters) (Font)
|
One-to-one with format.
|
Varies when you use a proportional font.
|
Outer size (Decoration)
|
No decoration.
|
Platform dependent.
|
Default keys
|
GO = F1 ENDKEY = F4
|
GO = F2 ENDKEY = ESC
|
Default buttons
|
One character high; horizontal layout.
|
Approximately 1.2 character units high; small extra margin.
|
Standard dialog boxes
|
GET-FILE dialog available in adecomm.
|
Open, Save As, Color, Font, Print.
|
Field-level mnemonics
|
Not available.
|
Uses “&” syntax to denote ALT key combination.
|