child to a new position in the list of box children.
The list is the children field of
GtkBox, and contains both widgets packed GTK_PACK_START
as well as widgets packed GTK_PACK_END, in the order that these
widgets were added to box.gtkBoxReorderChild(object, child, position)objectGtkBoxchildGtkWidget to movepositionchild in the list of children
of box, starting from 0. If negative, indicates the end of
the listbox children list determines where
the widget is packed into box. A child widget at some position
in the list will be packed just after all other widgets of the
same packing type that appear earlier in the list.