iTS 1.0+)

Data Division

Compaq NonStop™ Pathway/iTS SCREEN COBOL Reference Manual—426750-001

5-24

Base Screen

A base screen is a screen that is initially displayed on the terminal and is used to

establish the current screen for each program unit. In contrast to an overlay screen that

is displayed in the overlay area of a base screen, the base screen can be displayed

independently.

screen-name

is the name given to the base screen.

SIZE lines, cols

indicates the size of the screen. The number of lines and columns can each range

from 1 through 255. The size can be no larger than the physical limits of the

terminal screen for base screens.

If this option is omitted, the default is 24 lines, 80 columns.

field-characteristic-clause

is one or more clauses that define default characteristics for all fields subordinate to

the screen unless these characteristics are explicitly overridden for a particular group

or field. The clauses that can appear here are:

FILL WHEN ABSENT

mnemonic-name WHEN BLANK

UPSHIFT WHEN FULL

USER CONVERSION

Screen Overlay Area

A screen overlay area defines an area of a base screen within which an overlay screen

can be displayed. When overlay screens are used in a program, a screen overlay area

must be defined in the base screen description entry.

level-num

is a numeric literal that indicates the hierarchy. The value must be within the range

of 2 through 49. Subordinate entries are not allowed.

area-name

is the name given to the screen overlay area.

01 screen-name [ BASE ] [ SIZE lines , cols ]

[ field-characteristic-clause ] ...

level-num area-name AREA AT line, col SIZE lines, cols