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(elisp)Recording Input

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Recording Input
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 - Function: recent-keys
     This function returns a vector containing the last 100 input
     events from the keyboard or mouse.  All input events are included,
     whether or not they were used as parts of key sequences.  Thus,
     you always get the last 100 input events, not counting events
     generated by keyboard macros.  (These are excluded because they
     are less interesting for debugging; it should be enough to see the
     events that invoked the macros.)

     A call to `clear-this-command-keys' (Note: Command Loop Info)
     causes this function to return an empty vector immediately
     afterward.

 - Command: open-dribble-file filename
     This function opens a "dribble file" named FILENAME.  When a
     dribble file is open, each input event from the keyboard or mouse
     (but not those from keyboard macros) is written in that file.  A
     non-character event is expressed using its printed representation
     surrounded by `<...>'.

     You close the dribble file by calling this function with an
     argument of `nil'.

     This function is normally used to record the input necessary to
     trigger an Emacs bug, for the sake of a bug report.

          (open-dribble-file "~/dribble")
               => nil

   See also the `open-termscript' function (Note: Terminal Output).