Rob and Mark,
The solution below will work for lightweight components, but not for
toplevel windows (which is what I assume Rob asking about).
We do not yet (as of 1.5) have the capability of transparent/translucent
toplevel Windows. Yes, the capability exists on some platforms. One of
the tricks in making this work in the library is handling it in a
cross-platform-friendly way.
Anyway, it's one of the things we are hoping to implement
in the next release.
(There are always hack workarounds like using an undecorated frame,
capturing the background of the desktop with Robot, and then
painting the background on top of the frame, but you're probably looking
for something a bit more standard and dependable...)
Chet.
----- Original Message -----
From: Mark McKay <[EMAIL PROTECTED]>
Date: Saturday, May 29, 2004 7:30 am
Subject: [JAVA2D] transparent windows yet?
> Call setOpaque(false); on your window. Then, when you repaint it, do
> something like:
>
> public void paintComponent(Graphics g)
> {
> Composite oldComposite = g.setComposite(AlphaComposite.Clear);
> g.fill(getBounds());
> g.setComposite(oldComposite);
>
> //Rendering code
> }
>
> Mark McKay
>
>
> Rob Ross wrote:
>
> > I'm in the middle of a project where being able to make a window's
> > background
> > translucent/semi-transparent would be a very very cool thing
> > to have.
> >
> > Is this possible yet with 1.4? If not, how about 1.5?
> >
> > Is this feature really that hard to implement?
> >
> > I'm asking honestly, I don't know what's required in the JVM to
> make> this happen. But since both OS X and WindowsXP seem to do
> this all the
> > time now, I have to assume most of the "hard" code already has been
> > written in those platform's native libraries.
> >
> >
> > Rob Ross
> > Senior Software Engineer
> > E! Networks
> > [EMAIL PROTECTED]
> >
> >
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