(using revision 0124 on Windows Vista)

I can enable native fonts with hint(PConstants.ENABLE_NATIVE_FONTS), but
I'd like to be able to turn them off within the program as well. For
instance, to use native fonts when the text size is small, but switch back
to processing fonts when it's larger.

Either something like an unhint() function, or otherwise a
PConstants.DISABLE_NATIVE_FONTS would seem a reasonable (and reasonably
simple) solution.

use noHint(PConstants.ENABLE_NATIVE_FONTS);