Pathmaker Reference Manual

Screen Painter
Pathmaker Screens
1–122 067869 Tandem Computers Incorporated
The maximum width of a decoration is 80 characters, the width of the screen.
A decoration cannot include leading blanks, trailing blanks, or two or more
consecutive blanks unless it has an assigned video attribute.
A decoration occupies a contiguous series of screen locations.
Data Fields
To add, change, or delete data fields, place the cursor on an existing data field or on an
empty area of the screen and press F4 to access the Data Field Partial screen.
Use data field screen elements to display or enter data on the application screen. Each
data field is associated with a reference object in the requester context or an
elementary field within a reference object. The maximum length of a data field is the
size of the paging area.
An alphanumeric data field can become segmented if it is too long to fit on one line
from its starting location. Each segment is placed on a separate line below the starting
line.
Point Fields
To add, change, or delete point fields, place the cursor on an existing point field or on
an empty area of the screen and press F5 to access the Point Field Partial screen.
Use point fields with function keys and the pseudofields @CURSOR-FIELD and
@CURSOR-POSITION to start some operation in the application.
Point fields are invisible screen elements; you cannot enter or display data in them.
However, they are displayed in reverse video on the Screen Painter so that you can
find them.
The Pathmaker program provides default point fields located at the screen title, at data
fields on the screen, and at the bottom of the screen near the function key prompts.
These point fields allow you to get specific online help for the item near the cursor.
For example, when you place the cursor at the screen title and press function key F15,
the system displays online help for the entire screen.
You can specify any of the standard video attributes, except Hidden, for point fields.
N is the default value for all the video attributes except Hidden. The value of the
Hidden attribute is Y, which you cannot override.
In SCREEN COBOL, a point field has a length of one and a video attribute of Hidden.
Pseudofields
To add, change, or delete pseudofields, place the cursor on an existing pseudofield or
on an empty area of the screen and press SF4 to access the Pseudofield Partial screen.
Use pseudofields to display or send values that do not have DDL or NonStop SQL
definitions. The current value of a pseudofield appears on the application screen. You
cannot enter data into a pseudofield.