On 05.10.2009, at 10:39, Gabriel Zachmann wrote:
I supposed that the screen saver manager would just call -
initWithFrame: again.
-init... methods are only called once on an instance, when it is
alloced and inited. Calling it several times on the same instance that
has already been initialized goes against every bit of documentation
on AppKit, and more importantly, Objective C out there. I think you
should get yourself a good book about Objective C, it sounds like the
one you learned from so far omitted some very important aspects of
Objective C.
Extra credit: the user has multiple displays attached, "Main screen
only" option is off, and the user clicks the Test button or
activates your screen saver (hot corner, inactivity). What do you
expect will happen then?
I assumed it would load(!) & run the screen saver bundle multiple
times.
And it's not that this assumption is complete nonsense, is it?
You cannot load a bundle several times on the Mac. That's because
you can't unload a bundle. After all, you could be defining string
constants or custom subclasses in your bundle, and someone in the
program that loaded your bundle could be retaining one of those
objects. Unloading it would make your application crash, because
suddenly the code the class points to or the TEXT section from which
the constant string came would be gone.
Cheers,
-- Uli Kusterer
"The witnesses of TeachText are everywhere..."
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