mev - a program to report mouse events


SYNOPSIS

       mev [ options ]


DESCRIPTION

       The  `mev' program is part of the gpm package.  The infor­
       mation 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  pro­
       gram'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 dec­
              imal 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

              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 con­
       sidered  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', `righ­
       tAlt', `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 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

       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
        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.


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