xev



XEV(1)                                                                  XEV(1)




NAME

       xev - print contents of X events


SYNOPSIS

       xev  [-display displayname] [-geometry geom] [-bw pixels] [-bs {NotUse-
       ful,WhenMapped,Always}] [-id windowid] [-s] [-name string] [-rv]


DESCRIPTION

       Xev creates a window and then asks the X server to send it events when-
       ever  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  debug-
       ging 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.

       -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 cur-
               rent window obscures other windows. Save unders are only  advi-
               sory,  and  are  normally set for popup dialogs and other tran-
               sient 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.


SEE ALSO

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


AUTHOR

       Jim Fulton, MIT X Consortium



                                                                        XEV(1)

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