The xwud(1) utility is an X Window System image undumping
utility. The xwud(1) utility allows X users to display in a
window an image saved in a specially formatted dump file, such as
one produced by xwd(1).
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.
-displaydisplay
This option allows you to specify the server to connect to; see
X(5).
-fgcolor
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.
-geometrygeom
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.
-infile
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 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.
-planenumber
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 for printing.
-raw
This option forces the image to be displayed with whatever
color values 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 can 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.
-stdmaptype
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.
-visvis-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". You can also specify
"Match", which means use the same class as the source image.
Alternatively, an exact visual identifier (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.