1XEV(1) General Commands Manual XEV(1)
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6 xev - print contents of X events
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9 xev [-display displayname] [-geometry geom] [-bw pixels] [-bs {NotUse‐
10 ful,WhenMapped,Always}] [-id windowid] [-s] [-name string] [-rv]
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13 Xev creates a window and then asks the X server to send it events when‐
14 ever anything happens to the window (such as it being moved, resized,
15 typed in, clicked in, etc.). You can also attach it to an existing
16 window. It is useful for seeing what causes events to occur and to
17 display the information that they contain; it is essentially a debug‐
18 ging and development tool, and should not be needed in normal usage.
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21 -display display
22 This option specifies the X server to contact.
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24 -geometry geom
25 This option specifies the size and/or location of the window,
26 if a window is to be created.
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28 -bw pixels
29 This option specifies the border width for the window.
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31 -bs {NotUseful,WhenMapped,Always}
32 This option specifies what kind of backing store to give the
33 window. The default is NotUseful. Backing store refers to the
34 the pixels saved off-screen when the X server maintains the
35 contents of a window; NotUseful means that the xev process will
36 redraw its contents itself, as necessary.
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38 -id windowid
39 This option specifies that the window with the given id should
40 be monitored, instead of creating a new window.
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42 -s This option specifies that save-unders should be enabled on the
43 window. Save unders are similar to backing store, but they
44 refer rather to the saving of pixels off-screen when the cur‐
45 rent window obscures other windows. Save unders are only advi‐
46 sory, and are normally set for popup dialogs and other tran‐
47 sient windows.
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49 -name string
50 This option specifies the name to assign to the created window.
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52 -rv This option specifies that the window should be in reverse
53 video.
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56 X(7), xwininfo(1), xdpyinfo(1), Xlib Programmers Manual, X Protocol
57 Specification
58 See X(7) for a full statement of rights and permissions.
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61 Jim Fulton, MIT X Consortium
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65X Version 11 xev 1.0.4 XEV(1)