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Can
I use a UniBasic printer script file with dL4
for Unix?
Can I
use a UniBasic printer script file with dL4
for Windows?
How do
I prevent opening a printer concurrently in
dL4 for Unix?
How do
I prevent opening a printer concurrently in
dL4 for Windows?
What
is a Terminal Definition File (TDF)?
Where
do I find more information about Terminal Definition
Files?
What
is a Printer Definition File (PDF)?
Where
do I find more information about Printer Definition
Files?
How does
'Begin Protect' work in dL4?
How do
I change the color of the border of a dL4 window?
How do
I use the FONTCOLOR and BACKCOLOR mnemonics
in dL4?
How do
I have dL4 for UNIX clear the screen when a
user exits?
How do
I print bright colors in a protected field?
How do
I set up a dL4 printer file in Windows?
A
UniBasic printer script file may be used with
dL4 for Unix. However, if a temporary file is
used to prevent concurrent printing, then the
first line in the script needs to be "#
dl4opts=lock=/tmp/lockfilename" where "lockfilename"
is a name unique to the printer script.
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In
general, a UniBasic printer script file may
not be used as there are major differences between
Unix and Windows environment.
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The
first line in the printer script must be an
options line containing the option "lock=/tmp/lockfilename".
For example:
# dl4opts=lock=/tmp/lpt1.kl
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The
option "lock=true" must appear as
a REM line in the printer batch file as shown
below:
rem
dl4opts=lock=true
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What
is a Terminal Definition File (TDF)?
A
Terminal Definition File (TDF) is similar in
function to a UniBasic term.xxx file. It is
used to define action keys, mnemonics, function
keys, and I/O translation. A detailed description
can be found in a white paper on Terminal Definition
Files. You may download a copy from our Web
Site by visiting our Download Center.
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A
detailed description can be found in a white
paper on Terminal Definition Files. You may
download a copy from our Web Site by visiting
our Download Center.
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What
is a Printer Definition File (PDF)?
A
Printer Definition File is similar to a Terminal
Definition File and it is used for translating
printer output. A detailed description can be
found in a white paper on Terminal Definition
Files. You may download a copy from our Web
site by visiting our Download Center.
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Where
do I find more information about Printer Definition
Files?
A
detailed description can be found in a white
paper on Terminal Definition Files. You may
download a copy from our Web Site by visiting
our Download Center.
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In
dL4, by default, the BP/EP operations take effect
only when format mode is enabled by the 'FM'
mnemonic. As in IRIS, the preferred way of using
protected mode is to output all protected fields
with format mode off ('FX'), and then output
'FM' when finished. The FM/FX mnemonics were
not mandatory in the IRIS/UniBasic environment,
but their use was recommended (see IRIS R9 Business
Basic Manual, p. 3-31). Many UniBasic users
combined 'BP' and 'FX' mnemonics as a single
'BP' mnemonic in their term files for BITS program
compatibility. Similarly, they combined 'EP'
and 'FM' as a single 'EP' mnemonic in their
term files. This behavior can be duplicated
in dL4 for Unix by adding the line "BPIsFXBP=True"
to the "[Settings]" section of the terminal
description files.
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The
following program sets the background and foreground
borders and default colors to blue and yellow,
respectively.
Open #1,{"","titl,hide",40,10} As "Window"
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! Hidden Window
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Print #1;'255Backcolor cs ye';
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! set border and default colors
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Channel 11,#1;
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! make window visible
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After
the Channel statement, the current foreground
and background colors may be changed to desired
colors without affecting the border colors.
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The
FONTCOLOR and the BACKCOLOR mnemonics set the
foreground text and background colors, respectively.
They take RGB color values to set appropriate
color. The following statements provide examples
for both FONTCOLOR and BACKCOLOR.
Print '0 BACKCOLOR 255FONTCOLOR'
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! black background, blue foreground
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Print '65280 FONTCOLOR 255 BACKCOLOR'
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! green foreground, blue background
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Protected
fields are printed in dimmed mode. If, however,
the characters are already in a dark color,
the driver will display the field in a bright
color to contrast protected with unprotected
characters. Therefore, a protected field appears
in a bright color if a dark color is used in
the protected field. The following sample program
demonstrates how to display a protected field
in bright blue in dL4 for Windows.
10
Print '255FONTCOLOR BP';"Protected Field";'EP
FM', ! dimmed bright blue
20 Print '128FONTCOLOR BP';"Protected Field";'EP
FM'; ! dimmed dark blue
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The
CLOSE macro in the user's Terminal Definition
File (TDF) can be defined to output any string
of characters when dL4 exits.
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A
dL4 program accesses printers by opening a pipe
to an external program, usually a batch file,
and then outputting to that pipe.
Please refer to dL4 Installation
& Configuration Guide for Windows 95/NT
for details.
Related Article: Configuring
a Printer in dL4 Windows
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