[Audacity-nyquist] How to process selection _and_ give message?

[David R. S. <dav...@sh...>]

Hi,

How do I get an effect plug-in to process the selection _as well_
as give a message to the user?

As a simple example,

(mult 0 s)
(format nil "message")

gives the message only (no volume reduction), whereas

(format nil "message")
(mult 0 s)

reduces the volume level of s to zero but no message.

How can I get the audio result as well as the message?

Thanks

David