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xwud - image displayer for X
xwud [-in 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(1)
.
- -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 specify 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. 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)
for printing.
- -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 originally 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 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.
- -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 obtained 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.
- -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.
- DISPLAY
- To get default display.
- XWDFile.h
- X Window Dump File format definition file.
xwud doesn't handle big/deep
images very well on servers that don't have the BIG-REQUESTS extension.
xwd(1)
, xpr(1)
, xstdcmap(1)
, X(1)
Bob Scheifler, MIT X Consortium
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