dbus-event-message-type
dbus-event-message-type is a compiled Lisp function in `dbus.el
'.
(dbus-event-message-type EVENT)
Return the message type of the corresponding D-Bus message.
The result is a number. EVENT is a D-Bus event, see
`dbus-check-event'. This function raises a `dbus-error' signal
in case the event is not well formed.