iter_nth_child

Description:

public abstract bool iter_nth_child (out TreeIter iter, TreeIter? parent, int n)

Sets 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.

Parameters:

this	a `GtkTreeModel`
iter	the `GtkTreeIter` to set to the nth child
parent	the `GtkTreeIter` to get the child from
n	the index of the desired child

Returns:

true, if parent has an n-th child