Viagra for JPanel: is update() impotent?

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#13084

From: cyze
Date: Fri, 18 Sep 1998 00:00

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I've been experimenting with Swing (v1.0.1) for the past while.  As an
exercise, I decided I would port an old webcam application I had written.  I
noticed some odd behaviour regarding a JPanel and update(): I found that when
I extended one of my classes from a JPanel as opposed to a Panel, update()
was no longer getting called as I would have expected.	I changed my code
back to my pre-Swing version by extending my class from awt.Panel, and yup,
update() was originally getting called.  I add a 'J' in front of Panel, and
no more updates.

Is this some artifact of the doublebuffering mechanism of the JPanel?  Should
I just put all my drawing in paintComponent?

Thanks for your help!
Mike.

PS: Please reply to cyze@gsd.is.co.za , and NOT cyze@noisiavision.com as it
says in the news header.  Thx!

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From: cyze@noisiavision.com
Subject: Viagra for JPanel: is update() impotent?
Date: 1998/09/18
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