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know when a asynchronous process is done


From: Xah Lee
Subject: know when a asynchronous process is done
Date: Sat, 9 Feb 2008 12:03:21 -0800 (PST)
User-agent: G2/1.0

How can i know a asynchronous process (started by my elisp) is done?

----
detail:

i want to write a elisp program so that it runs a shell command to
render a pov-ray file. I want the process to run in the background,
but when it is done, open the generated image.

My problem is that i don't know how to code that knows when a
asynchronous process is done.

Thanks in advance.

  Xah
  address@hidden
∑ http://xahlee.org/

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