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+# $EPIC: on_window_server.txt,v 1.2 2007/02/13 06:05:45 jnelson Exp $
+======Synopsis:======
+[[on]] [<modes>]window_server [<serial#>] [-|^]<match> { <action> }
+======Description:======
+This hook is triggered each time a window changes its server association
+for any reason whatsoever.
+The server refnum -2 is special, and it means the window has disconnected;
+it is no longer associated with any server.
+Traditionally, newly created windows will not hook this event, but that
+might change in the future.  Be prepared for forwards compatability.
+In this case, the old server refnum will be -2.
+======Parameters:======
+|$0	| The window refnum |
+|$1	| The old server refnum |
+|$2     | The new server refnum |
+======History:======
+This first appeared in EPIC5-0.3.2.