From: William Overington (
Date: Tue Apr 15 2003 - 04:32:59 EDT

  • Next message: William Overington: "An application of Supplementary Private Use Area-B"

    Some of the fonts available from the following web page use Private Use Area
    code points.

    Readers might like to have a look at the fun music fonts. I had a lot of
    problems trying out the font CPMUSICU.TTF on the Windows platform. The
    CPMUSICU.TTF font does not contain a glyph for U+0020 yet does contain a
    glyph with no contours in it at U+E4DF in the Private Use Area. This being
    so that U+E4DF is explicitly a unit width space. The reason for not
    including a glyph at U+0020 is because the font might be used to produce a
    Portable Font Resource font and used in conjunction with a text font from
    elsewhere and I want the U+0020 glyph to be that of the text font without
    any ambiguity in the matter. Because of the problems I produced the
    CPMUSICV.TTF file with a space at U+0020 as well.

    However, as far as I know I have not had any problems with using fonts which
    use Private Use Area code points in Word 97 and WordPad due to Windows
    making any presumption about the nature of any Private Use Area character
    being used. However, I have only used them for making displays to look at
    and to make Print Screen copies to paste into the Microsoft Paint program to
    produce a graphic. For example, using the CPMUSICW.TTF font, how would any
    presumption by Windows as for what the code points in the range U+E4C0 to
    U+E4FF are used affect an end user please?

    William Overington

    15 April 2003

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