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xwud - image displayer for X
file] [-noclick] [-geometry geom] [-display display] [-new] [-std <maptype>] [-raw]
[-vis <vis-type-or-id>] [-scale] [-help] [-rv] [-plane number] [-fg color] [-bg color]
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)
- -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)
- 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
- -geometry geom
- This option allows you to specify the size and
position of the window. Typically you will only want to specify the position,
and let the size default to the actual size of the image.
- 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.
- 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).
- Clicking any button
in the window will terminate the application, unless this option is specified.
Termination 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. This option
can be used to figure out which plane to pass to xpr(1)
- 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 originally
came from, while the original windows are still on the screen, and results
in getting the image on the screen faster.
- If a bitmap image (or a single
plane of an image) is displayed, this option forces the foreground and
background 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.
- 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 obtained by converting the type to upper case, prepending "RGB_",
and appending "_MAP". Typical types are "best", "default", and "gray". See
for one way of creating Standard Colormaps.
- -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", "DirectColor",
or "TrueColor". Or "Match" can be specified, meaning use the same class
as the source image. Alternatively, an exact visual id (specific to the
server) can be specified, either as a hexadecimal number (prefixed 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.
- To get default display.
xwud doesn't handle big/deep
images very well on servers that don't have the BIG-REQUESTS extension.
Bob Scheifler, MIT X Consortium
- X Window Dump File format definition file.
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