Focus transfer to unknown window.

Hi, all.
I have a problem - m.b. somebody knows how to solve it. I write a library, which used by external code. When some method of my class is called, a JDialog with parent==null is opened and user prompted to fill some data. When my JDialog is closed, the focus must to return to the original window - but I don't have a reference to it.. Is it possible to find what are additional Window objects existing in the jvm, and pass the focus to on of them?
I would very appreciate any help and advice.
Sincerely.
Jab.
[email protected]

Hi,
there is a method in jdk1.4 that returns the last focused component,
I think it's "getOppositeComponent". But that doesn't work for
top-level-containers as they are focus-cycle-roots and therefore
never have focus. You could try to use that method and then climb
up the component hirarchy with the method "getParent()" until you
have the Top-Level-Container and then invoke "toFront()" or "show()" on it.
But I think the proper way for what you want to do is to use an
interface to the outside(I've never seen librarys without interfaces).
For example you could use a method "register(JDialog dialog)", that
every client, that wants to use your library, has to implement.
You can save the registered clients(probably JFrames)in a collection,
register WindowListeners for them and use a member that points to
the client that was last activated.
Hope this helps,
alex

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