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Re: new here, a few questions

by Todd Oberly :: Rate this Message:

--- In plua@..., "migueletto" <migueletto@...> wrote:

>
> --- In plua@..., "Todd Oberly" <taoberly@> wrote:
>
> > 1) I see that it's possible to access the SD Card with vfs0: ...but is
> > it also possible to access the DBCache area of RAM? If not, might
> > this be a planned feature, or is there some technical hurdle? For
> > example, I'd like to write a script that does some
> > processing/cataloging of the photos in the "Photos & Videos"
> > directory.
>
> I do not know what DBCache is, but if it is a standard PalmOS database
> (PDB) you can open it with io.open(), read or write records, etc.

I'm hoping for a way to access the "Builtin" volume that appears in
FileZ when you enable the "Show Hidden Volumes" setting. I'm not sure
if this DBCache or direct access to NVFS. The Resco Explorer docs
describe it like this: "NVFS databases can't be accessed directly.
Therefore Palm OS reserves part of RAM called DbCache. Prior to its
use the databases are copied from NVFS to the DbCache and after the
use they are copied back (if changed) or just purged (otherwise)."

Might you have any plans for a vfs01: (?) to access this storage?

> > 2) I'm not so much interested in writing applications as writing
> > GUI-less helper scripts that run "in the background". I compiled a
> > demo from the manual that creates a new .pdb file. Each time it runs,
> > it generates a white screen for a few seconds, and the screen that
> > follows isn't necessarily what I was previously viewing. I know
> > something about multitasking (or lack thereof) in Palm OS, but is
> > there a way around this specific problem?
>
> Plua programs can not run in the background. They will always open a
> blank screen, as you noticed.

Okay, I'll cope. :-)

Thanks again,

Todd

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