Line height in NSText

[Dirk Lattermann]

Hello,

I would like to place a marker (e.g., a triangle) next to 
a line of text in a plain NSText object (no rtf).  The marker should be placed
outside the NSText view.  To achieve this, I would like to know
the "baseline skip" in the NSText.  Is it possible to query the NSText object
about this?  If not, how can I get at this information?

TIA,
Dirk Lattermann