MEV(1)                      General Commands Manual                     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  han-
       dle 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 sym-
              bolic string.

       -E     Enter emacs mode. In emacs mode  events  are  reported  as  lisp
              forms  rather  than  numbers.  This is the format 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 bor-
              der,

       -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. Unspecified options retain
       the previous value and the resulting masks are used to reopen the  con-
       nection  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 <rubini@linux.it>
       Ian Zimmerman <itz@speakeasy.org>


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


SEE ALSO
        gpm(8)       The mouse server

       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)
