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FIX If a popup is opened, its window handle is now being set as the foreground.
This fixes an issue with certain controls being disabled on popups.
(thanks Andrew Smith for pointing me in the right direction!).
FIX Changed dispatcher access in order to work in WinForms scenarios, too.
ADD Added WinForms sample.
git-svn-id: https://svn.evolvesoftware.ch/repos/evolve.net/WPF/NotifyIcon@118 9f600761-6f11-4665-b6dc-0185e9171623
