Collecting Embedded Items

Hi,

I am trying to make a collection of all embedded items in the document.

It seems the only DOM to have the embedded property are rasterItems.

However PluginItems also show up on the panel as being embedded.

My 2 questions are, 1) are all PluginItems by definition embedded? and 2) are there any other DOMs that would show on the links panel as being embedded?

Thanks,

Trevor