Add link to weak reference.

2016-02-05 18:34:23 -05:00 · 2016-02-05 18:34:23 -05:00 · f02fd8f338
commit f02fd8f338
parent d28ab71058
1 changed files with 3 additions and 1 deletions
--- a/gui-lib/framework/preferences.rkt
+++ b/gui-lib/framework/preferences.rkt
@ -406,7 +406,9 @@ the state transitions / contracts are:
    invoked, removes the callback from this preference.
    
    If @racket[weak?] is true, the preferences system will only hold on to
-    the callback weakly.
+    the callback
+    @tech[#:key "weak references"
+          #:doc '(lib "scribblings/reference/reference.scrbl")]{weakly}.
    
    The callbacks will be called in the order in which they were added.