11.2.1 Examination operations
(let ((test-button (make-instance 'capi:button))) (defun is-button-enabled () (slot-value test-button 'capi::enabled)))This has defined the function
is-button-enabled, which is a closure over the variable
test-button, where the value of
test-buttonis an instance of the
FUNCTIONitem to select the closure.
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