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Posted to user@poi.apache.org by Daniel Noll <da...@nuix.com> on 2007/08/13 09:03:41 UTC
Embedded OLE2 objects
Hi all.
Does anyone have some pointers on where to start if I want to add support for
extracting embedded OLE2 objects? Ultimately I need to do it for all three
formats (I know they're all different...) but if anyone has some pointers for
getting started on even one of them, that would be great.
As far as I can tell for Word, CharacterRun.isOle2() returns true when there
is an OLE2 object there, but I'm not sure what to do next as getObjOffset()
returns an offset at which there doesn't seem to be any OLE2 data.
Daniel
--
Daniel Noll
Nuix Pty Ltd
Suite 79, 89 Jones St, Ultimo NSW 2007, Australia Ph: +61 2 9280 0699
Web: http://nuix.com/ Fax: +61 2 9212 6902
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Re: Embedded OLE2 objects
Posted by Daniel Noll <da...@nuix.com>.
On Monday 13 August 2007 17:03:41 Daniel Noll wrote:
> As far as I can tell for Word, CharacterRun.isOle2() returns true when
> there is an OLE2 object there, but I'm not sure what to do next as
> getObjOffset() returns an offset at which there doesn't seem to be any OLE2
> data.
Here's the results of some further investigation.
At offset 0 in the PicturesTable there is actually an EMF of the embedded
object.
run.getPicOffset() => 1248525022
There is a directory in the OLE2 filesystem under ObjectPool
called "_1248525022", matching this number perfectly.
So it seems to be pretty easy conceptually for Word format to find the
embedded objects, but what I find odd is that the pic offset points to the
object, not the obj offset... almost like some Microsoft engineer screwed up
once and then all future versions had to implement the same bug to maintain
compatibility.
Daniel
--
Daniel Noll
Nuix Pty Ltd
Suite 79, 89 Jones St, Ultimo NSW 2007, Australia Ph: +61 2 9280 0699
Web: http://nuix.com/ Fax: +61 2 9212 6902
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