I believe it's
> be honest: the graphical display is output, not input.
Yes, certainly, but
> If you are using a toolkit that has a data flow of the following:
input -- output (graphical display)
|_ application -> output (audio)
Once the slider is drawn to the screen, it does not feed back into the
is, in fact, part of the flow. The two components of output that you
mention are provided independently in parallel branches.
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