currently, whenever the options' ok button is clicked,
a new preference file (pref_vio.ini) is generated and
saved. the purposed change is to blank out the ok
button until a user changes one of the options.
We should still have the OK button available, from a UI
perspective. Later, if we really want to save on writing 5
lines of IO, we can add code to check whether or not IO
needs to happen before writing the file. But messing with
the OK button might confuse users
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We should still have the OK button available, from a UI
perspective. Later, if we really want to save on writing 5
lines of IO, we can add code to check whether or not IO
needs to happen before writing the file. But messing with
the OK button might confuse users