+refresh button). If you double-click a non-window object (a button for
+example), then test view is created for a closest ancestor which is a window.
+
+
+Bugs
+----
+
+- Some combinations of parent/child windows are not valid but possible to put
+ into XML tree by using XRCed. Usually this produces a meaningful error
+ message from XRC library when test view is opened.
+
+- Be careful when replacing a non-empty container control with another class,
+ and check parameters which can be copied from the previous object but not
+ valid for the new one. Is it not possible to undo replacement yet.
+