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XEV(1)                 DragonFly General Commands Manual                XEV(1)


NAME

       xev - print contents of X events


SYNOPSIS

       xev [-display displayname] [-geometry geom] [-bw pixels] [-bs
       {NotUseful,WhenMapped,Always}] [-id windowid] [-root] [-s] [-name
       string] [-rv] [-version] [-event event_mask [-event event_mask ...]]


DESCRIPTION

       Xev creates a window and then asks the X server to send it events
       whenever anything happens to the window (such as it being moved,
       resized, typed in, clicked in, etc.).  You can also attach it to an
       existing window.  It is useful for seeing what causes events to occur
       and to display the information that they contain; it is essentially a
       debugging and development tool, and should not be needed in normal
       usage.


OPTIONS

       -display display
               This option specifies the X server to contact.

       -geometry geom
               This option specifies the size and/or location of the window,
               if a window is to be created.

       -bw pixels
               This option specifies the border width for the window.

       -bs {NotUseful,WhenMapped,Always}
               This option specifies what kind of backing store to give the
               window.  The default is NotUseful. Backing store refers to the
               the pixels saved off-screen when the X server maintains the
               contents of a window; NotUseful means that the xev process will
               redraw its contents itself, as necessary.

       -id windowid
               This option specifies that the window with the given id should
               be monitored, instead of creating a new window.

       -root   This option specifies that the root window should be monitored,
               instead of creating a new window.

       -s      This option specifies that save-unders should be enabled on the
               window. Save unders are similar to backing store, but they
               refer rather to the saving of pixels off-screen when the
               current window obscures other windows. Save unders are only
               advisory, and are normally set for popup dialogs and other
               transient windows.

       -name string
               This option specifies the name to assign to the created window.

       -rv     This option specifies that the window should be in reverse
               video.

       -event event_mask
               Select which events to display.  The -event option can be
               specified multiple times to select multiple types of events.
               When not specified, all events are selected.  Available event
               masks: keyboard mouse expose visibility structure substructure
               focus property colormap owner_grab_button randr button

       -version
               This option prints the program version and exits.


SEE ALSO

       X(7), xwininfo(1), xdpyinfo(1), Xlib Programmers Manual, X Protocol
       Specification
       See X(7) for a full statement of rights and permissions.


AUTHOR

       Jim Fulton, MIT X Consortium

X Version 11                       xev 1.2.2                            XEV(1)

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