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From: nparker@inferno.uoregon.edu (Neil Parker)
Newsgroups: comp.sys.apple2.programmer
Subject: Re: Font ID numbers
Date: 30 Dec 1997 09:26:21 GMT
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In article <689r1e$c8q@examiner.concentric.net>,
ericlob <ericlob@cris.com> wrote:
>Ok, I've finally had time to work on my current project (FONTPiMP) and
>have gotten to the point that I need to have some means to check whether a
>font number is being used (since I have to make one up, and the old font
>will be replaced by the new one if they have the same number).
>
>Any ideas? Is there a system call (or means to query Pointless) to check
>on whether a currently loaded font has the same number?

There are a couple of Font Manager calls that might help.

FindFamily ($0A1B) lets you step through the list of currently installed
fonts.

     famNum = FindFamily(famSpecBits, positionNum, namePtr);

For example,

     word famNum, i = 0;
     char fontName[27];

     for(i = 0; i<=CountFamilies(0); i++) {
          famNum = FindFamily(0, i, fontName);
          fontName[fontName[0]+1] = '\0';
          printf("font %d: ID=%x, name=%s\n", i, famNum, &fontName[1]);
     }

GetFamInfo ($0B1B) returns a FamStatBits and the font's name if the
specified family number is installed, or an error if it isn't.

     statBits = GetFamInfo(famNum, namePtr);

               - Neil Parker
-- 
Neil Parker, nparker@inferno.uoregon.edu, nparker@axis.llx.com,
http://axis.llx.com/~nparker/     (Note new addresses and home page!)

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