getIterFirst
Initializes @iter with the first iterator in the tree (the one at the path "0").
Returns false if the tree is empty, true otherwise.
Return
true, if @iter was set
Parameters
iter
the uninitialized GtkTreeIter
Initializes @iter with the first iterator in the tree (the one at the path "0").
Returns false if the tree is empty, true otherwise.
true, if @iter was set
the uninitialized GtkTreeIter