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graphical interface elements

Test Drive

With your program amended to include the checkbox code, let’s
run the latest version of the DJ’s program in IDLE and see if the
checkbox works as advertised.

Sweet! T oggle the sound
on and off by simply
clicking on the checkbox.

Man, that‛s so easy
to use! Let‛s adjust
the volume, too, while
the sound is playing...
Creating the program bit by bit is working out. Each time
your DJ friend needs something new, you incrementally
improve the program in order to provide the functionalilty
he needs. Of course, there’s always something new.

Will this guy ever be satisfied?!?

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