iter
to be the child of parent
, using the given index. The first
index is 0. If n
is too big, or parent
has no children, iter
is set
to an invalid iterator and FALSE
is returned. parent
will remain a valid
node after this function has been called. As a special case, if parent
is
NULL
, then the n
th root node is set.gtkTreeModelIterNthChild(object, parent = NULL, n)
object
GtkTreeModel
.parent
GtkTreeIter
to get the child from, or NULL
. [ allow-none ]n
TRUE
, if parent
has an n
th child.iter
GtkTreeIter
to set to the nth child.