monitoring the events in Rhino I discovered that, when I double click on a block and I open the block edit panel, a lot of OnAddObject events are raised. Then when I close the panel those object are destroyed. Nothing is visible in the GUI but I think these are the objects that are part of the Instance definition of the block.
My issue is that I monitor all the objects added in the document and I would like to filter the objects that are not added to the document and that are not visible.
I would like to know what happens and what is the logic involved but and also a way to identify these objects in order to skip them. Any idea?