[gtkmm] Selecting the first row of a TreeView?

[Markus Gerwinski <markus gerwinski de>]

Hi folks,

is there a way in Gtkmm-2.0 to select the first row of a TreeView? In the docs,
I didn't find any method to get a `begin()' or `first()' iterator, nor a
`get_iter (int row)' or something.

Thanks in advance,

  Markus