So, if the question is how to make an OpenType font *not* display the dotted circle on Windows with Uniscribe, one idea would be to add a spacing glyph to U+25CC (DOTTED CIRCLE) in the font. This spacing glyph should be a no-contour glyph, perhaps with the same advance width as U+0020. I've not tried this, but it might just work.
It should work: Uniscribe inserts the U+25CC glyph that is in the font, so this could be something other than an actual dotted circle. Another option would be to map the dotted circle to a non-contour spacing glyph in one of the discretionary OpenType Layout features such as <salt>, which would allow users of apps supporting that feature (currently only InDesign ME, so far as I know) to choose whether or not to display the circle.
John Hudson
--
Tiro Typeworks www.tiro.com Vancouver, BC [EMAIL PROTECTED]
I often play against man, God says, but it is he who wants
to lose, the idiot, and it is I who want him to win.
And I succeed sometimes
In making him win.
- Charles Peguy
