This session parameter is used to assign attributes for dynamic attribute field display.
| Possible settings | See DY Parameter Syntax. | |
|---|---|---|
| Default setting | none | |
| Applicable statements | Parameter may be specified at statement level and/or at element level. | |
| Applicable command | none | |
Special identification characters (escape characters) are used to indicate the beginning and end of attribute definitions.
An alphanumeric field which is processed with an
INPUT,
DISPLAY,
WRITE or
PRINT statement, and
which contains escape characters, is split into subfields at the escape
character position. The corresponding attribute is then assigned to the
subfield. A blank is substituted for the escape character.
Note:
For a part of a field for which a DY
specification applies, the current field presentation and color attributes
remain in effect, unless new settings are defined in the
DY entry. This means, the field color is only changed by
a DY attribute if the DY
parameter itself defines a new color. The same applies to the
field representation
attributes, such as
(AD=B,C,D,I,N,U,V).
The following topics are covered below:
DY={{escape-character1}
[color-attribute]
[i/o-characteristics]
[field-representation-attribute]
} ... {escape-character2}
|
The possible settings are explained below.
An escape character which denotes the beginning of the attribute
definition. Any special character or a hexadecimal number preceded by an
apostrophe ('xx) may be used.
The color attribute to be assigned. See also session parameter
CD (color
definition).
BL |
blue |
GR |
green |
NE |
neutral |
PI |
pink |
RE |
red |
TU |
turquoise |
YE |
yellow |
| Value | Meaning |
|---|---|
P |
Subfield is to be write-protected. |
A P may be specified to make the subfield write-protected.
See also session parameter AD (attribute
definition).
Additional attributes to be assigned. See also session parameter
AD (attribute
definition).
| Value | Meaning |
|---|---|
B |
blinking (*) |
C |
cursive/italic (*) |
D |
default intensity |
I |
intensified |
N |
non-display |
U |
underlined |
V |
reverse video (*) |
* The field representation attributes marked with an asterisk (*) require corresponding hardware features, and will be ignored at runtime if these features are not available.
An escape character which denotes the end of the attribute definition.
Any special character (c) or a hexadecimal number
preceded by an apostrophe ('xx) may be
used.
You may specify up to eight escape sequences (escape characters and attributes) before the character indicating the end of the attribute definitions.
DY=<U>
The text string:
THIS <is> UNDERLINED
is printed as:
THIS is UNDERLINED
DY=<BL|RE/GR>
Assigns:
Blue to <
Red to |
Green to /
> switches back to the initial field color.
DY=<P>;
The text string:
Do not overwrite <this>
is printed as:
Do not overwrite this
(where this is protected)
