Please, please, please!!!
Would anyone with their mail client set to include
the message with their reply please set it not to do so
or delete the mailing list box at the bottom otherwise
I'll keep getting 27 copies of the same message.
Ross Giddings
Klaus Major wrote:
Hi Ken,
Hi all
I'm seeking advice on stack structure, for a template for a
presentation-type standalone. I'm using R2.7 trial.
The (proposed) app will have a main menu, but I'd like a separate
navigation
menu, maybe a stack menu with a series of pulldown menu buttons for
navigation (Section 1, page x... etc).
Content will be contained in other stacks (or substacks?). Each
stack card
will need to load a large image or a movie (from external
directory), and
there would be lots of cards. The cards will also contain text,
buttons,
drawn objects, animations etc. Text and vector graphics would be
done in
Rev.
However, I can't find info on what exactly happens to loaded media
when a
card (or substack) is closed, in terms of memory purging. I've had
other
stand alone media-heavy apps hang because of memory overload so it's an
issue for me.
All media on a card or in a stack are only loaded when needed and
unloaded
when you leave the card they were on.
This is because the "alwaysbuffer" of players and images is set to
"false" by default.
And the "bufferhiddenimages" is also set to "false" by default.
Check the documentation for an exact definition of these properties.
The Rev pdf manual says <If one stack in a stack file is loaded into
memory,
so are any other stacks in the same stack file. You cannot load one
stack in
a stack file without loading all the rest at the same time even if
you open
only one of the stacks.>
Questions (these refer to the behaviour of a standalone app):
1. Am I right to interpret the above quote to mean a stack file
includes any
substacks, and these are all are loaded when the main stack is ?
Yes.
2. It isn't possible to purge a substack from memory using
destroyStack,
even if the substack is closed and another opened ?
Yes (but I am not 100% sure) it is not possible.
This is only possible with separate stacks (files).
3. So, to purge a stack from memory when it's closed, I would need
to use
separate main stacks for each section ?
Yes.
4. So, if it is necessary to use a series of separate stacks, these
will
not be bundled together into a single file when the standalone is
built?
Exactly.
Hope that helps :-)
Ken
Regards
Klaus Major
[EMAIL PROTECTED]
http://www.major-k.de
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