Commit d96658e3 authored by Kim F. Storm's avatar Kim F. Storm

(Misc Events): Update signal events.

(Event Examples): Add signal example.
parent 8247c60d
......@@ -1586,13 +1586,14 @@ The precise meaning of the event parameters and the way these
parameters are used to display the help-echo text are described in
@ref{Text help-echo}.
@cindex @code{usr1-signal} event
@cindex @code{usr2-signal} event
@item usr1-signal
@itemx usr2-signal
These events are generated when the Emacs process receives the signals
@code{SIGUSR1} and @code{SIGUSR2}. They contain no additional data
because signals do not carry additional information.
@cindex @code{signal usr1} event
@cindex @code{signal usr2} event
@cindex user signals
@item signal usr1
@itemx signal usr2
These event sequences are generated when the Emacs process receives
the signals @code{SIGUSR1} and @code{SIGUSR2}. They contain no
additional data because signals do not carry additional information.
@end table
If one of these events arrives in the middle of a key sequence---that
......@@ -1632,6 +1633,16 @@ into another window. That produces a pair of events like these:
-453816))
@end smallexample
To handle a SIGUSR1 signal, define an interactive function, and
bind it to the @code{signal usr1} event sequence:
@smallexample
(defun usr1-handler ()
(interactive)
(message "Got USR1 signal"))
(global-set-key [signal usr1] 'usr1-handler)
@end smallexample
@node Classifying Events
@subsection Classifying Events
@cindex event type
......
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