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MEV(1)                                                                  MEV(1)



NAME
       mev - a program to report mouse events

SYNOPSIS
       mev [ options ]

DESCRIPTION
       The  'mev' program is part of the gpm package.  The information below is extracted from the texinfo file, which
       is the preferred source of information.


       The mev program is modeled after xev. It prints to stdout the mouse console events it gets.


       mev's default behaviour is to get anything, but command line switches can be used to set the various fields  in
       the  Gpm_Connect structure, in order to customize the program's behaviour. I'm using mev to handle mouse events
       to Emacs.


       Command line switches for mev are the following:

       -C number
              Select a virtual console to get events from.  This is intended to be used for debugging.

       -d number
              Choose a default mask. By default the server gets any events not belonging to the event mask.  The  mask
              can be provided either as a decimal number, or as a symbolic string.

       -e number
              Choose  the  event  mask. By default any event is received. The mask can be provided either as a decimal
              number, or as a symbolic string.

       -E     Enter emacs mode. In emacs mode events are reported as lisp forms rather than numbers. This is the  for-
              mat used by the t-mouse package within emacs.

       -f     Fit  events inside the screen before reporting them. This options re-fits drag events, which are allowed
              to exit the screen border,


       -i     Interactive. Accepts input from stdin to change connection parameters.

       -m number
              Choose the minimum modifier mask. Any event with fewer  modifiers  will  not  be  reported  to  mev.  It
              defaults to 0.  The mask must be provided either as a decimal number, or as a symbolic string.

       -M number
              Choose  the  maximum  modifier mask. Any event with more modifier than specified will not be reported to
              mev.  It defaults to  ~0, i.e. all events are received.  The mask must be provided either as  a  decimal
              number, or as a symbolic string.

       -p     Requests  to  draw the pointer during drags. This option is used by emacs to avoid invoking ioctl() from
              lisp code.


       When the arguments are not decimal integers, they are considered lists of alphanumeric characters, separated by
       a single non-alphanumeric character. I use the comma (,), but any will do.


       Allowed  names  for  events are move, drag, down or press, up or release, motion (which is both move and drag),
       and hard.


       Allowed names for modifiers are shift, leftAlt, rightAlt, anyAlt (one or the other), control.


       When the -i switch is specified, mev looks at its standard input as command lines rather than events. The input
       lines are parsed, and the commands push and pop are recognized.


       The  push command, then, accepts the options -d, -e, -m and -M, with the same meaning described above. Unspeci-
       fied options retain the previous value and the resulting masks are used  to  reopen  the  connection  with  the
       server. pop is used to pop the connection stack. If an empty stack is popped the program exits.


       Other  commands recognized are info, used to return the stack depth; quit to prematurely terminate the program;
       and snapshot to get some configuration information from the server.



BUGS
       Beginning with release 1.16, mev no longer works under xterm.  Please use the rmev  program  (provided  in  the
       sample  directory)  to  watch gpm events under xterm or rxvt.  rmev also displays keyboard events besides mouse
       events.



AUTHOR
       Alessandro Rubini <rubiniATlinux.it>
       Ian Zimmerman <itzATspeakeasy.org>



FILES
       /dev/gpmctl The socket used to connect to gpm.



SEE ALSO
        gpm(8)       The mouse server
        gpm-root(1)  An handler for Control-Mouse events.

       The info file about 'gpm', which gives more complete information and explains how to write a gpm client.



4th Berkeley Distribution        February 1995                          MEV(1)