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Language/OS - Multiplatform Resource Library
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LANGUAGE OS.iso
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lisp
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elk-2_0.lha
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elk-2.0
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examples
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xaw
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accel
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1991-10-30
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969b
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32 lines
;;; -*-Scheme-*-
;;;
;;; Demonstrate usage of accelerators
;;;
;;; Based on an example program (xtryaccel.c) from the O'Reilly
;;; book `X Toolkit Intrinsics Programming Manual'
(require 'xwidgets)
(load-widgets command box shell)
(define top (application-initialize 'accel
"*bye.label: Goodbye"
"*hello.label: Hello"
"*font: *courier-bold-r*18*iso8859-1"))
(define box (create-managed-widget (find-class 'box) top))
(define bye (create-managed-widget 'bye (find-class 'command) box
'accelerators "<KeyPress>q: set() notify()"))
(add-callback bye 'callback (lambda _ (exit)))
(define hello (create-managed-widget 'hello (find-class 'command) box
'accelerators "<KeyPress>p: set() notify() reset()"))
(add-callback hello 'callback (lambda _ (display "Hello world!\n")))
(install-accelerators box bye)
(install-accelerators box hello)
(realize-widget top)
(display "Press 'p' for Hello, 'q' for Goodbye.\n")
(context-main-loop (widget-context top))