+ /**
+ * <p>Registers a {@link Ext.Window Window} with this WindowManager. This should not
+ * need to be called under normal circumstances. Windows are automatically registered
+ * with a {@link Ext.Window#manager manager} at construction time.</p>
+ * <p>Where this may be useful is moving Windows between two WindowManagers. For example,
+ * to bring the Ext.MessageBox dialog under the same manager as the Desktop's
+ * WindowManager in the desktop sample app:</p><code><pre>
+var msgWin = Ext.MessageBox.getDialog();
+MyDesktop.getDesktop().getManager().register(msgWin);
+</pre></code>
+ * @param {Window} win The Window to register.
+ */