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tighten up the contract for get-display-size and get-display-left-top-inset

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This commit is contained in:
Robby Findler 2013-05-08 08:52:37 -05:00
parent b9f8d699d3
commit 0c96d2ca95
1 changed files with 12 additions and 4 deletions
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16
collects/scribblings/gui/global-draw-funcs.scrbl
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@ -32,8 +32,12 @@ Returns the depth of the main display (a value of 1 denotes a monochrome display
@defproc[(get-display-left-top-inset [avoid-bars? any/c #f]
[#:monitor monitor exact-nonnegative-integer? 0])
(values (or/c exact-nonnegative-integer? #f)
(or/c exact-nonnegative-integer? #f))]{
(values (if (= monitor 0)
exact-nonnegative-integer?
(or/c exact-nonnegative-integer? #f))
(if (= monitor 0)
exact-nonnegative-integer?
(or/c exact-nonnegative-integer? #f)))]{
When the optional argument is @racket[#f] (the default), this function
returns the offset of @racket[monitor]'s origin from the
@ -58,8 +62,12 @@ If @racket[monitor] is not less than the current number of available
@defproc[(get-display-size [full-screen? any/c #f]
[#:monitor monitor exact-nonnegative-integer? 0])
(values (or/c exact-nonnegative-integer? #f)
(or/c exact-nonnegative-integer? #f))]{
(values (if (= monitor 0)
exact-nonnegative-integer?
(or/c exact-nonnegative-integer? #f))
(if (= monitor 0)
exact-nonnegative-integer?
(or/c exact-nonnegative-integer? #f)))]{
@index["screen resolution"]{Gets} the physical size of the specified @racket[monitor] in
pixels. On Windows, this size does not include the task bar by