xwd - dump an image of an X window
xwd [-debug] [-help] [-nobdrs] [-out file] [-xy] [-frame]
[-add value] [-root | -id id | -name name] [-icmap]
[-screen] [-display display]
This argument allows you to specify the server to connect
to; see X(1X). Print out the Usage: command syntax summary.
This argument specifies that the window dump should
not include the pixels that compose the X window border.
This is useful in situations where you may wish to include
the window contents in a document as an illustration.
This argument allows the user to explicitly specify the
output file on the command line. The default is to output
to standard out. This option applies to color displays
only. It selects `XY' format dumping instead of the
default `Z' format. This option specifies an signed value
to be added to every pixel. This option indicates that
the window manager frame should be included when manually
selecting a window. This option indicates that the root
window should be selected for the window dump, without
requiring the user to select a window with the pointer.
This option indicates that the window with the specified
resource id should be selected for the window dump, without
requiring the user to select a window with the
pointer. This option indicates that the window with the
specified WM_NAME property should be selected for the window
dump, without requiring the user to select a window
with the pointer. Normally the colormap of the chosen
window is used to obtain RGB values. This option forces
the first installed colormap of the screen to be used
instead. This option indicates that the GetImage request
used to obtain the image should be done on the root window,
rather than directly on the specified window. In
this way, you can obtain pieces of other windows that
overlap the specified window, and more importantly, you
can capture menus or other popups that are independent
windows but appear over the specified window.
The xwd utility is an X Window System window dumping utility.
xwd allows X users to store window images in a specially
formatted dump file. This file can then be read by
various other X utilities for redisplay, printing, editing,
formatting, archiving, image processing, and so
forth. The target window is selected by clicking the
pointer in the desired window. The keyboard bell is rung
once at the beginning of the dump and twice when the dump
To get default host and display number.
X Window Dump File format definition file.
xwud(1X), xpr(1X), X(1X)
Tony Della Fera, Digital Equipment Corp., MIT Project
Athena; William F. Wyatt, Smithsonian Astrophysical Observatory
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