convert_iter_to_child_iter

Description:

public void convert_iter_to_child_iter (out TreeIter child_iter, TreeIter filter_iter)

Sets child_iter to point to the row pointed to by filter_iter.

this	A `GtkTreeModelFilter`
child_iter	An uninitialized `GtkTreeIter`
filter_iter	A valid `GtkTreeIter` pointing to a row on this.