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fixed pr 11010

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This commit is contained in:
Matthias Felleisen 2010-07-02 12:47:13 -04:00
parent 12f30cf478
commit 3656cd1972
1 changed files with 3 additions and 3 deletions
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6
collects/teachpack/2htdp/scribblings/universe.scrbl
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@ -373,11 +373,11 @@ All @tech{MouseEvent}s are represented via strings:
@defform[(on-mouse mouse-expr)
#:contracts
([clack-expr
([mouse-expr
(-> (unsyntax @tech{WorldState})
integer? integer? (unsyntax @tech{MouseEvent})
(unsyntax @tech{WorldState}))])]{
tell DrRacket to call @scheme[clack-expr] on the current world, the current
tell DrRacket to call @scheme[mouse-expr] on the current world, the current
@scheme[x] and @scheme[y] coordinates of the mouse, and and a
@tech{MouseEvent} for every (noticeable) action of the mouse by the
computer user. The result of the call becomes the current world.
@ -701,7 +701,7 @@ As mentioned, all event handlers may return @tech{WorldState}s or
@defform/none[#:literals (on-mouse)
(on-mouse mouse-expr)
#:contracts
([clack-expr
([mouse-expr
(-> (unsyntax @tech{WorldState})
integer? integer? (unsyntax @tech{MouseEvent})
(or/c (unsyntax @tech{WorldState}) package?))])]{