generating Section geometry

Im attempting to generate my own 2d sections from 3d geometry (solids)
using vba.

Im hoping to get not only the profiles of the solids sectioned at a
particular
plane/location, but also unsectioned geometry from solids just 'out of
range'
of the plane section.

Ive already tried/tweaked the "SectionSolid" call; but it only returns
the
geometry directly thru the section, and none of the unsectioned
background objects.

So now Im trying to use the GenerateSectionGeometry sub, in acad vba.

The docs for GenerateSectionGeometry are sparse; Ive seen nothing on
different web searches. I have a few questions that may help get the
ball rolling here. Id appreciate *any* insight into these problems:

1)The section Object itself: I tried usinn the "AddSection" method,
unsuccessfully. What is the plane vector? How do I format it?

2) I skipped by that and attempted to use the GenerateSectionGeometry
call from an existing section plane made manually in a drawing. The
help states the "pEntity" param is an "entity" -
which entity? The solid that has to be sectioned? That returns an
error. A Block, like AddSection requires ? (remember, the manual
version of this call also returns geometry in a block), so i tried
both blocks, and blockrefs - nogo.

Im stumped. Theres nothing in the help, nothing online.If one of you
gurus can pull a rabbit out of the hat on this one, I *promise* not to
send you any fruitcake for Xmas.

or maybe theres another way? A way I can get the culled profiles, of
non-intersecting geometry from solids ? Then I can use the
sectionsolid call, with the geometry formatting libs I just wrote.

Thanks, guys ....