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How to mute device in 2nd edition
TInt id=sess.FindWindowGroupIdentifier( 0, L("*Phone?"));
event.Key()->iCode = EKeyDevice1;
event.Key()->iModifiers = 0;
event.Key()->iRepeats = 0;
event.Key()->iScanCode = EStdKeyNull;
sess.SendEventToWindowGroup( id, event );