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.
For a part of a field for which a DY
specification applies, the
current field presentation and color is changed to what is newly defined in the
DY
entry. If the DY
segment does not
contain a new setting for the
(means no
B
, C
, D
, I
, N
,
U
, V
), the attribute active for the complete field remains
in effect, regardless of whether originally derived from a static setting (for
example, AD=I
) or from a control variable (for example,
CV=#C
).
(means no
BL
, GR
, NE
, PI
, RE
,
TU
, YE
), the color is set to what is statically assigned
to the field (with CD=..
), without considering a color which was possibly
set via a control variable (CV=..
). If the field has no static
(CD=..
) assignment, the color information is completely removed from
the field segment affected by the DY
manipulation.
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)