user to search for some text (and possible replace it with something else).
The actual searching is supposed to be done in the owner window which is the
parent of this dialog. Note that it means that unlike for the other standard
-dialogs this one {\bf must} have a parent window.
+dialogs this one {\bf must} have a parent window. Also note that there is no
+way to use this dialog in a modal way, it is always, by design and
+implementation, modeless.
Please see the dialogs sample for example of using it.