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HP OpenVMS Systemsask the wizard |
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The Question is: I am trying to invoke the printscreen command from the terminal window. What are the parameters involved with the printscreen command? The Answer is :
$ prscr :== $decw$printscreen
$ prscr -?
Usage:
dxprint -X
dxprint [-p] [-b|G] [-f] [-r] [geom*] [-t seconds] [-j inch] [-k inch]
[-l horizontal_scaling_factor] [-m vertical_scaling_factor] [-P queue]
[file]
dxprint [-p] -c [-f] [geom*] [-t seconds] [-j inch] [-k inch]
[-l horizontal_scaling_factor] [-m vertical_scaling_factor] [-P queue]
[file]
dxprint -D [-b|G] [-r] [geom*] [-t seconds] [-P queue] [file]
dxprint -D -c [geom*] [-t seconds] [-P queue] [file]
dxprint -s [-b|G] [-a] [-r] [geom*] [-t seconds] [-T n] [-P queue] [file]
dxprint -s -c [geom*] [-t seconds] [-T n] [-P queue] [file]
*geom is -x n -y n -h n -w n
--
NAME
dxprint - Capture and print screen image.
SYNOPSIS
dxprint [ flags ] [ file ]
DESCRIPTION
The dxprint (Print Screen) program allows you to capture the screen image in
printable form.
The available output formats are PostScript, Sixel, and DDIF (Digital Document
Interchange Format).
An optional time delay gives you time to rearrange the screen to iconify or
restack windows, or to give focus to the window with the color map to be used
for the capture.
Output is sent to the standard output unless file is supplied.
The -X option displays the dxprint Graphical User Interface (GUI). This
reference page describes the dxprint command line interface. Use the GUI help
facility for help with the dxprint GUI.
FLAGS
Usage Diagrams
dxprint -X
dxprint [-p] [-b|G] [-f] [-r] [geom*] [-t seconds] [-P queue] \ [-P queue] [file]
dxprint [-p] -c [-f] [geom*] [-t seconds] [-P queue] [file]
dxprint -D [-b|G] [-r] [geom*] [-t seconds] [-P queue] [file]
dxprint -D -c [geom*] [-t seconds] [-P queue] [file]
dxprint -s [-b|G] [-a] [-r] [geom*] [-t seconds] [-T n] \ [-P queue] [file]
dxprint -s -c [geom*] [-t seconds] [-T n] [-P queue] [file]
*geom is -x n -y n -h n -w n
Consult the usage diagrams, above, to determine what combinations of flags are
permissible.
Flags Specifying GUI and Time Delay
-X Brings up the dxprint graphical user interface from which you can invoke help
for more information.
-t integer Causes a wait of integer seconds before the actual capture occurs, so
that the screen arrangement can be changed prior to the capture. If deleted, no
delay will occur.
Flags Specifying Area to Capture
Specify all four of the following options for a partial capture. Specify none of
the options for a full screen capture. There are no default values for these
options.
-x integer Defines the upper left corner of the capture region in pixel units
from the left edge of the screen active area.
-y integer Defines the upper left corner of the capture region in pixel units
from the top edge of the screen active area.
-w integer Defines the lower right corner of the capture region in pixel units
from the left edge of the capture region (in other words, its width).
-h integer Defines the lower right corner of the capture region in pixel units
from the top edge of the capture region (in other words, its height).
Flags Specifying Output File Format
If no output-specifying flags are used, the default is -pf (PostScript,
rotated/scaled to fit page).
PostScript is the only output format that is by default sent to the standard
output. DDIF and Sixel formats are binary and must be saved to a file, with a
command such as:
dxprint -s file
-s Creates the output file in Sixel format. A Sixel file can be viewed in a
DECterm by using the cat command, or it can be printed on most types of printers
from Digital Equipment Corporation.
-p Default. Creates the output file in PostScript format.
-D Creates the output file in DDIF (CDA) format. A DDIF file can be viewed with
the CDA viewer (/usr/bin/X11/dxvdoc) and edited with the DECwindows bitmap
editor (/usr/bin/X11/dxpaint).
The following three switches modify the output file when used according to the
usage diagrams above.
-a Creates a (Sixel only) output file with a horizontal doubling of the
printable output. This is useful to eliminate a «squeezed» appearance of the
screen image when printed on printers that have a greater horizontal resolution
than vertical resolution, such as the Digital LA50.
-r Creates an output file with a reversal of light and dark. This option is
useful to save printer ink or toner when printing screen images that are mostly
dark.
-f Creates an output file that is either printed at a 90 degree angle, or
uniformly reduced in size, or both, so that it will fit entirely within an
A-size printed page. This option is implied when PostScript is chosen by default
(by omitting the -s, -p, and -D flags).
-T integer For Sixel captures, specifies the Sixel output device. Integer
represents a printer from the following table:
VT terminal or DECterm
2
LA50
12
LA75
13
LA100
14
Laser printer (LN03, LPS20, etc.)
15
LCG01
19
LJ250 (256 color mode)
20
LA210
21
LJ250 (8 color mode)
24 The default for black and white (-b) and greyscale (-G) screen
captures is the LN03. The default for color captures (-c) is the LJ250.
Flags Specifying Output Color
-b Default. Creates a black and white capture file. This rendering is supported
by all workstations and printers. It will create a high contrast printed output
- screen areas darker than 50% gray will appear black, and lighter screen areas
will appear white.
-G Creates a gray-scale capture file. This rendering is supported by all
printers, but only by color or gray-scale workstations. A color screen image
will be represented in the file by suitable shades of gray, but there may be
adjacent regions of different colors that coincidentally have the same gray
value when printed and thus will «blend into» each other.
-c Creates a color capture file. This color rendering is supported by all
printers but only on color workstations (with any number of color planes).
Printing it on a black and white printer will give varying results depending on
the printer. Sixel output is optimized for a Digital LJ250 color printer.
EXAMPLES
1. This example captures a reversed-contrast full-screen PostScript capture in
the file mysnapshot.ps (in the current working directory) after a one second
delay.
dxprint -p -r -t mysnapshot.ps
2. This example captures a black and white PostScript image of the area bounded
by (100,100) and (300,150) to standard output.
dxprint -x100 -y100 -w200 -h50
RELATED INFORMATION
cdoc(1) , lpr(1) , dxvdoc(1X) , dxpaint(1X) , CDA(4) , DDIF(4) , lpd(8)
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