opps, I changed the order of arguments in xSetSelectionOwner:, which should be xSetSelectionOwner :: Display -> Atom -> Window -> Time -> IO () cioa andrea Mon Aug 6 15:55:28 CEST 2007 Andrea Rossato * Extras.hsc: added xSetSelectionOwner, xGetSelectionOwner, xConvertSelection With this patch it is possible to use Selections from the Haskell side. We can thus implement cut and paste operations.