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Posted by Peter Olcott on 06/20/06 21:43
"Jim Higson" <jh@333.org> wrote in message
news:ENGdnbfeg_Yv-wXZnZ2dnUVZ8s-dnZ2d@eclipse.net.uk...
> Peter Olcott wrote:
>
>>
>> "Neredbojias" <http://www.neredbojias.com/fliam.php?cat=alt.html> wrote in
>> message news:Xns97E88E93B789Ehttpwwwneredbojiasco@208.49.80.251...
>>> To further the education of mankind, "Peter Olcott" <olcott@att.net>
>>> vouchsafed:
>>>
>>>>>> I must know the point size. Imagine that I am writing a browser, and
>>>>>> must display any webpage.
>>>>>
>>>>> Display where? If in users' browsers, just keyphrase-identify all
>>>>> the various valid (and some invalid) possible font-designators and
>>>>> copy their attributes verbatim. However, if your process depends
>>>>> upon determining each user's browser default font-size, etc., to
>>>>> accomplish its task, that really isn't possible.
>>>>>
>>>>
>>>> Then browsers couldn't do it, and since they do it, therefore its not
>>>> impossible.
>>>
>>> Actually, they don't; they _set_ the font-size for their application,
>>> determining, perhaps, the OS default font size as necessary. If doing
>>> this in points is really accurate (which I doubt), said browser must also
>>> find out the current monitor size and resolution.
>>
>> I need to know whatever the final result is that these browsers use to
>> display the text on the browser window. It does not matter if it is in
>> point size, or tmHeight, as long as it is 100% precise.
>
> Perhaps you could do it using an open source renderer like Gecko by
> stripping out all the code you don't want (perhaps millions of lines) so
> you basically just have a parsing and layout engine that doesn't display
> anything. A very daunting task.
>
> No idea what you could do with Trident (the IE engine) though. If you want
> to copy the (weird) layout behaviour exactly the only thing I can think of
> is clean room reverse engineering. Won't ever be exact though and really,
> unless you have a huge team of experts (In which case, why would you post
> here?) this seems not worth bothering with.
>
> Another idea: how about you display the text, capture it and OCR it with
> some kind of font recognition? Would that be OK? Seems hackish but might
> work.
>
> --
> Jim
Maybe I could just hook all of the lower level windows font functions.
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