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This is the command gxditview that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


gxditview - display groff intermediate output files

SYNOPSIS


gxditview [-toolkitoption ...] [-option ...] [filename]

DESCRIPTION


The gxditview program displays the groff intermediate output, see groff_out(5), on an
X display. It uses the standard X11 fonts, so it does not require access to the server
machine for font loading. There are several ways to use gxditview.

The groff intermediate output can be generated by groff -Z. This can be viewed by
explicitly calling gxditview filename. If filename is -, gxditview will read the standard
input; filename cannot be omitted. The groff intermediate output is different for all
devices. gxditview can view it for all devices, but the quality is device dependent.

The best results are achieved with the X* devices for groff's option -T. There are four
X* devices: -TX75, -TX75-12, -TX100, -TX100-12. They differ by the X resolution (75dpi or
100dpi) and the used base font size (10pt or 12pt). They are especially built for
gxditview. When using one of them groff generates the intermediate output for this device
and calls gxditview automatically for viewing. For example, to view this man page with a
base resolution of 12pt, say

groff -TX100-12 -man -rS12 gxditview.1

(option -rSXX is documented in the groff_man(7) man page).

groff's option -X produces intermediate output for the Postscript device and subsequently
uses gxditview as a viewer for it. The quality of the result depends mainly on the chosen
point size and display resolution; for rapid previewing, however, something like

groff -X -P-resolution -P100 document

yields acceptable results.

During the run of gxditview, the left mouse button brings up a menu with the following
entries:

Next Page
Display the next page.

Previous Page
Display the previous page.

Select Page
Select a particular numbered page specified by a dialog box.

Print Print the groff intermediate output using a command specified by a dialog box.
The default command initially displayed is controlled by the printCommand
application resource, and by the -printCommand option.

Open Open for display a new file specified by a dialog box. The file should contain
some groff intermediate output. If the filename starts with | it will be taken to
be a command to read from.

Quit Exit from gxditview.

The n, Space, Return, and Next (PgDn) keys are bound to the Next Page action. The p, b,
BackSpace, Delete, and Prior (PgUp) keys are bound to the Previous Page action. The g key
is bound to the SelectPage action. The o key is bound to the OpenFile action. The q key
is bound to the Quit action. The r key is bound to the Rerasterize action which rereads
the current file, and redisplays the current page; if the current file is a command, the
command will be reexecuted. Vertical scrolling can be done with the k and j keys;
horizontal scrolling is bound to the h and l keys. The arrow keys (up, down, left, and
right) are also bound to the obvious scrolling actions.

The paperlength and paperwidth commands in the DESC file specify the length and width in
machine units of the virtual page displayed by gxditview.

OPTIONS


The gxditview program accepts all of the standard X Toolkit command line options along
with the additional options listed below:

-help This option indicates that a brief summary of the allowed options should be
printed.

-page This option specifies the page number of the document to be displayed.

-backingStore backing-store-type
Redisplay of the groff intermediate output window can take up to a second or so,
this option causes the server to save the window contents so that when it is
scrolled around the viewport, the window is painted from contents saved in backing
store. backing-store-type can be one of Always, WhenMapped or NotUseful.

-printCommand command
The default command displayed in the dialog box for the Print menu entry will be
command.

-resolution res
The groff intermediate output file will be displayed at a resolution of res dpi,
unless the DESC file contains the X11 command, in which case the device resolution
will be used. This corresponds to the Dvi widget's resolution resource. The
default is 75.

-filename string
The default filename displayed in the dialog box for the Open menu entry will be
string. This can be either a filename, or a command starting with |.

The following standard X Toolkit command line arguments are commonly used with gxditview:

-bg color
This option specifies the color to use for the background of the window. The
default is white.

-bd color
This option specifies the color to use for the border of the window. The default
is black.

-bw number
This option specifies the width in pixels of the border surrounding the window.

-fg color
This option specifies the color to use for displaying text. The default is black.

-fn font
This option specifies the font to be used for displaying widget text. The default
is fixed.

-rv This option indicates that reverse video should be simulated by swapping the
foreground and background colors.

-geometry geometry
This option specifies the preferred size and position of the window.

-display host:display
This option specifies the X server to contact.

-xrm resourcestring
This option specifies a resource string to be used.

X DEFAULTS


This program uses the Dvi widget in the X Toolkit. It understands all of the core
resource names and classes as well as:

width (class Width)
Specifies the width of the window.

height (class Height)
Specifies the height of the window.

foreground (class Foreground)
Specifies the default foreground color.

font (class Font)
Specifies the font to be used for error messages.

fontMap (class FontMap)
Specifies the mapping from groff font names to X font names. This must be a
string containing a sequence of lines. Each line contains two whitespace
separated fields: first the groff font name, and secondly the X font name. The
default is
"\
TR -adobe-times-medium-r-normal--*-100-*-*-*-*-iso8859-1\n\
TI -adobe-times-medium-i-normal--*-100-*-*-*-*-iso8859-1\n\
TB -adobe-times-bold-r-normal--*-100-*-*-*-*-iso8859-1\n\
TBI -adobe-times-bold-i-normal--*-100-*-*-*-*-iso8859-1\n\
CR -adobe-courier-medium-r-normal--*-100-*-*-*-*-iso8859-1\n\
CI -adobe-courier-medium-o-normal--*-100-*-*-*-*-iso8859-1\n\
CB -adobe-courier-bold-r-normal--*-100-*-*-*-*-iso8859-1\n\
CBI -adobe-courier-bold-o-normal--*-100-*-*-*-*-iso8859-1\n\
HR -adobe-helvetica-medium-r-normal--*-100-*-*-*-*-iso8859-1\n\
HI -adobe-helvetica-medium-o-normal--*-100-*-*-*-*-iso8859-1\n\
HB -adobe-helvetica-bold-r-normal--*-100-*-*-*-*-iso8859-1\n\
HBI -adobe-helvetica-bold-o-normal--*-100-*-*-*-*-iso8859-1\n\
NR -adobe-new century schoolbook-medium-r-normal--*-100-*-*-*-*-iso8859-1\n\
NI -adobe-new century schoolbook-medium-i-normal--*-100-*-*-*-*-iso8859-1\n\
NB -adobe-new century schoolbook-bold-r-normal--*-100-*-*-*-*-iso8859-1\n\
NBI -adobe-new century schoolbook-bold-i-normal--*-100-*-*-*-*-iso8859-1\n\
S -adobe-symbol-medium-r-normal--*-100-*-*-*-*-adobe-fontspecific\n\
SS -adobe-symbol-medium-r-normal--*-100-*-*-*-*-adobe-fontspecific\n\
"

ENVIRONMENT


GROFF_FONT_PATH
A list of directories in which to search for the devname directory in addition to
the default ones. See troff(1) and groff_font(5) for more details.

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