Manual: xwud

XWUD(1) General Commands Manual XWUD(1)

NAME
xwud - image displayer for X

SYNOPSIS
xwud [-in file] [-noclick] [-geometry geom] [-display display] [-new] [-std ] [-raw] [-vis ]
[-scale] [-help] [-rv] [-plane number] [-fg color] [-bg color] [-dumpheader] [-version]

DESCRIPTION
Xwud is an X Window System image undumping utility. Xwud allows X users to display in a window an image saved in a
specially formatted dump file, such as produced by xwd(1).

OPTIONS
-bg color
If a bitmap image (or a single plane of an image) is displayed, this option can be used to specify the color
to display for the "0" bits in the image.

-display display
This option allows you to specify the server to connect to; see X(7).

-dumpheader
This option prints out the XWD header information only. Nothing is displayed.

-fg color
If a bitmap image (or a single plane of an image) is displayed, this option can be used to specify the color
to display for the "1" bits in the image.

-geometry geom
This option allows you to specify the size and position of the window. Typically you will only want to spec‐
ify the position, and let the size default to the actual size of the image.

-help Print out a short description of the allowable options.

-in file
This option allows the user to explicitly specify the input file on the command line. If no input file is
given, the standard input is assumed.

-new This option forces creation of a new colormap for displaying the image. If the image characteristics happen
to match those of the display, this can get the image on the screen faster, but at the cost of using a new
colormap (which on most displays will cause other windows to go technicolor).

-noclick
Clicking any button in the window will terminate the application, unless this option is specified. Termina‐
tion can always be achieved by typing 'q', 'Q', or ctrl-c.

-plane number
You can select a single bit plane of the image to display with this option. Planes are numbered with zero
being the least significant bit.

-raw This option forces the image to be displayed with whatever color values happen to currently exist on the
screen. This option is mostly useful when undumping an image back onto the same screen that the image origi‐
nally came from, while the original windows are still on the screen, and results in getting the image on the
screen faster.

-rv If a bitmap image (or a single plane of an image) is displayed, this option forces the foreground and back‐
ground colors to be swapped. This may be needed when displaying a bitmap image which has the color sense of
pixel values "0" and "1" reversed from what they are on your display.

-scale Allow the window to be resized, and scale the image to the size of the window.

-std maptype
This option causes the image to be displayed using the specified Standard Colormap. The property name is ob‐
tained by converting the type to upper case, prepending "RGB_", and appending "_MAP". Typical types are
"best", "default", and "gray". See xstdcmap(1) for one way of creating Standard Colormaps.

-version
This option causes xwd to print its version information and exit.

-vis vis-type-or-id
This option allows you to specify a particular visual or visual class. The default is to pick the "best"
one. A particular class can be specified: "StaticGray", "GrayScale", "StaticColor", "PseudoColor", "Direct‐
Color", or "TrueColor". Or "Match" can be specified, meaning use the same class as the source image. Alter‐
natively, an exact visual id (specific to the server) can be specified, either as a hexadecimal number (pre‐
fixed with "0x") or as a decimal number. Finally, "default" can be specified, meaning to use the same class
as the colormap of the root window. Case is not significant in any of these strings.

ENVIRONMENT
DISPLAY To get default display.

FILES
XWDFile.h
X Window Dump File format definition file.

BUGS
xwud doesn't handle big/deep images very well on servers that don't have the BIG-REQUESTS extension.

Manual: xwud

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