Find/detect table anchor in drawing

Is there a way to find a table anchor in a drawing?  I want to insert a revision table that is anchored, if an anchor already exists in the drawing.  If there is no anchor, I want to insert the table at a specific location.  I know how to do the insertion and how to select anchored or un-anchored, but I can't figure out how to search for an anchor point.

Thanks,

Jeff

SolidworksApi macros