7d50e61c7f
* Another big chunk of v4-require-isms * Allow `#lang framework/keybinding-lang' for keybinding files * Move hierlist sources into "mrlib/hierlist", leave stub behind svn: r10689
15 lines
743 B
Scheme
15 lines
743 B
Scheme
;; The first three lines of this file were inserted by DrScheme. They record metadata
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;; about the language level of this file in a form that our tools can easily process.
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#reader(lib "htdp-beginner-reader.ss" "lang")((modname arrow-gui) (read-case-sensitive #t) (teachpacks ()) (htdp-settings #(#t constructor repeating-decimal #f #t none #f ())))
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(require htdp/arrow-gui)
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(require htdp/gui)
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(define (left b e) (draw-message msg "left"))
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(define (right b e) (draw-message msg "right"))
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(define (up b e) (draw-message msg "up"))
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(define (down b e) (draw-message msg "down"))
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(define msg (make-message (make-string 22 #\space)))
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(check-expect (window? (create-window (list (list msg)))) true)
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(check-expect (connect left right up down) true)
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