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.TH XEV 1 __xorgversion__
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.SH NAME
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xev - print contents of X events
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.SH SYNOPSIS
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.B "xev"
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[\-display \fIdisplayname\fP] [\-geometry \fIgeom\fP]
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[\-bw \fIpixels\fP] [\-bs \fI{NotUseful,WhenMapped,Always}\fP]
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[\-id \fIwindowid\fP] [\-root] [\-s] [\-name \fIstring\fP] [\-rv]
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.SH DESCRIPTION
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.PP
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\fIXev\fP creates a window and then asks the X server to send it
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\fIevents\fP whenever anything happens to the window (such as it being
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moved, resized, typed in, clicked in, etc.). You can also attach it to an
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existing window. It is useful for seeing what causes events to occur and to
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display the information that they contain; it is essentially a debugging and
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development tool, and should not be needed in normal usage.
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.SH OPTIONS
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.TP 8
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.B \-display \fIdisplay\fP
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This option specifies the X server to contact.
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.TP 8
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.B \-geometry \fIgeom\fP
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This option specifies the size and/or location of the window, if a window is
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to be created.
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.TP 8
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.B \-bw \fIpixels\fP
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This option specifies the border width for the window.
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.TP 8
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.B \-bs \fI{NotUseful,WhenMapped,Always}\fP
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This option specifies what kind of backing store to give the window.
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The default is NotUseful. Backing store refers to the the pixels saved
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off-screen when the X server maintains the contents of a window; NotUseful
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means that the xev process will redraw its contents itself, as necessary.
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.TP 8
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.B \-id \fIwindowid\fP
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This option specifies that the window with the given id should be
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monitored, instead of creating a new window.
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.TP 8
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.B \-root
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This option specifies that the root window should be
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monitored, instead of creating a new window.
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.TP 8
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.B \-s
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This option specifies that save-unders should be enabled on the window. Save
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unders are similar to backing store, but they refer rather to the saving of
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pixels off-screen when the current window obscures other windows. Save
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unders are only advisory, and are normally set for popup dialogs and other
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transient windows.
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.TP 8
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.B \-name \fIstring\fP
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This option specifies the name to assign to the created window.
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.TP 8
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.B \-rv
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This option specifies that the window should be in reverse video.
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.SH "SEE ALSO"
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X(__miscmansuffix__), xwininfo(__appmansuffix__), xdpyinfo(__appmansuffix__), Xlib Programmers Manual, X Protocol
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Specification
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.br
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See \fIX(__miscmansuffix__)\fP for a full statement of rights and permissions.
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.SH AUTHOR
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Jim Fulton, MIT X Consortium
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