-void prop_set32(Window win, Atom prop, Atom type, guint32 val);
-void prop_set_array32(Window win, Atom prop, Atom type, guint32 *val,
+void prop_set32(Window win, Atom prop, Atom type, gulong val);
+void prop_set_array32(Window win, Atom prop, Atom type, gulong *val,