run-with-timer

[David Hume]

I have this code:

(defun timeless ()
(interactive)
(run-with-timer 10 10 (message "Hello Time"))
(sit-for 120)
)

I was expecting that I would be able to type "timeless" and it would
output the message "Hello Time" every 10 seconds. But it seems to output
it only once. (Removing the sit-for line makes no difference).

What I am really trying to do is write something which will check for
new news periodically, and then perhaps notify me if there is any. My
attempts with run-with-idle-timer didn't seem to work either. (I pressed
keys to reset the idle timer).

How is this function meant to be used? Am I using it in the wrong way?

[Michael Heerdegen]

Post by David Hume
(defun timeless ()
(interactive)
(run-with-timer 10 10 (message "Hello Time"))
(sit-for 120)
)
Am I using it in the wrong way?

Yes. The third argument of `run-with-timer' must be a
function. Note that `run-with-timer' is a function, and not a special
form!

You can write

(run-with-timer 10 10 (lambda () (message "Hello Time")))

or

(run-with-timer 10 10 #'message "Hello Time")


Michael.

[David Hume]

Post by Michael Heerdegen
Yes. The third argument of `run-with-timer' must be a
function. Note that `run-with-timer' is a function, and not a special
form!
You can write
(run-with-timer 10 10 (lambda () (message "Hello Time")))
or
(run-with-timer 10 10 #'message "Hello Time")

Thanks! I was puzzling over that one for ages.