Re: icon and file types question

[dempson@actrix.gen.nz (David Empson)]

In article <CuK1x9.IvJ@nntpa.cb.att.com>,
J L. Walters <bird@nwsrs.nw.att.com> wrote:
>
> I recently bought Pointless which I installed and started to follow the
> manual. One of the first things it mentioned is that bit mapped fonts
> would appear with an icon that said Font (with the F being an olde
> english script type font), and TrueType fonts' icon would be a layered
> A. As you might guess neither was true. The icons for both were
> identical and were the word Font with a more normal F.

[snip]

> Looking at the Font Factory GS with an icon editor I found that it was
> for file type $CA, Auxtype $0. Since TrueType fonts are type $CA,
> Auxtype $1 I didn't see why this was happening.

Auxtype zero in an icon means "match all auxiliary types".  The only
way to avoid this problem is to have the icons processed by Finder in
the right order (which is a bit a black art, as it kept changing in
various system versions) so that the "specific auxiliary type" icon is
handled _before_ the "all auxiliary type" icon.

This may require re-ordering the icons in one file, or extracting the
troublesome icon and moving it to another file in the directory.

> Somewhat of an update. I have the updated Apple File Type notes which
> does not contain information about every file type, only those that
> have changed, however, for file type $42 it says that the Ftype.Apple
> has an entry for filetypes and the flagword has a bit (15) that, if
> set, causes a match between this filetype and ANY aux type.  

Ftype.Apple is nothing to do with icons - it is for descriptions of
files (as displayed in Finder's "Icon Info" windows).
-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand