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xwininfo - window information utility for
xwininfo [-help] [-id id] [-root] [-name name] [-int] [-children] [-tree]
[-stats] [-bits] [-events] [-size] [-wm] [-shape] [-frame] [-all] [-english] [-metric]
Xwininfo is a utility for displaying information
about windows. Various information is displayed depending on which options
are selected. If no options are chosen, -stats is assumed.
The user has the
option of selecting the target window with the mouse (by clicking any mouse
button in the desired window) or by specifying its window id on the command
line with the -id option. Or instead of specifying the window by its id number,
the -name option may be used to specify which window is desired by name.
There is also a special -root option to quickly obtain information on the
screen's root window.
- Print out the `Usage:' command syntax summary.
- -id id
- This option allows the user to specify a target window id on the
command line rather than using the mouse to select the target window. This
is very useful in debugging X applications where the target window is not
mapped to the screen or where the use of the mouse might be impossible
or interfere with the application.
- -name name
- This option allows the user
to specify that the window named name is the target window on the command
line rather than using the mouse to select the target window.
option specifies that X's root window is the target window. This is useful
in situations where the root window is completely obscured.
- This option
specifies that all X window ids should be displayed as integer values.
The default is to display them as hexadecimal values.
- This option
causes the root, parent, and children windows' ids and names of the selected
window to be displayed.
- This option is like -children but displays all
- This option causes the display of various attributes
pertaining to the location and appearance of the selected window. Information
displayed includes the location of the window, its width and height, its
depth, border width, class, colormap id if any, map state, backing-store
hint, and location of the corners.
- This option causes the display of
various attributes pertaining to the selected window's raw bits and how
the selected window is to be stored. Displayed information includes the
selected window's bit gravity, window gravity, backing-store hint, backing-planes
value, backing pixel, and whether or not the window has save-under set.
- This option causes the selected window's event masks to be displayed. Both
the event mask of events wanted by some client and the event mask of events
not to propagate are displayed.
- This option causes the selected window's
sizing hints to be displayed. Displayed information includes: for both the
normal size hints and the zoom size hints, the user supplied location if
any; the program supplied location if any; the user supplied size if any;
the program supplied size if any; the minimum size if any; the maximum
size if any; the resize increments if any; and the minimum and maximum
aspect ratios if any.
- This option causes the selected window's window
manager hints to be displayed. Information displayed may include whether
or not the application accepts input, what the window's icon window # and
name is, where the window's icon should go, and what the window's initial
state should be.
- This option causes the selected window's window and
border shape extents to be displayed.
- This option causes window manager
frames to be considered when manually selecting windows.
- This option
causes all individual height, width, and x and y positions to be displayed
in millimeters as well as number of pixels, based on what the server thinks
the resolution is. Geometry specifications that are in +x+y form are not
- This option causes all individual height, width, and x
and y positions to be displayed in inches (and feet, yards, and miles if
necessary) as well as number of pixels. -metric and -english may both be enabled
at the same time.
- This option is a quick way to ask for all information
- -display display
- This option allows you to specify the server to
connect to; see X(7)
The following is a sample summary taken with
no options specified:
xwininfo: Window id: 0x60000f "xterm"
upper-left X: 2
Absolute upper-left Y: 85
Relative upper-left X: 0
Relative upper-left Y: 25
Visual Class: PseudoColor
Border width: 0
Colormap: 0x27 (installed)
Bit Gravity State: NorthWestGravity
Window Gravity State: NorthWestGravity
Backing Store State: NotUseful
Save Under State: no
Map State: IsViewable
Override Redirect State: no
Corners: +2+85 -699+85 -699-6.4 +2-623
Using -stats -bits shows some redundant information.
- To get the default host and display number.
string displayed must make assumptions about the window's border width and
the behavior of the application and the window manager. As a result, the
location given is not always correct.
Mark Lillibridge, MIT Project
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