On Sep 5, 2009, at 11:43, Christiaan Hofman wrote:

>
> On Sep 5, 2009, at 2:50, Adam R. Maxwell wrote:
>
>>
>> On Sep 4, 2009, at 4:08 PM, Christiaan Hofman wrote:
>>
>>> On Sat, Sep 5, 2009 at 1:00 AM, Maxwell, Adam R <adam.maxw...@pnl.gov 
>>> > wrote:
>>> On 09/04/09 15:49, "Christiaan Hofman" <cmhof...@gmail.com> wrote:
>>>
>>> > Even on Leopard? How could Apple have this bug for so long then?  
>>> And
>>> > what baffles me is how Preview can get away with this.
>>>
>>> Yes, I forgot to say I was running 10.5.8 here.  I should see if a  
>>> sample
>>> program that calls areaOfInterestForMouse: also crashes.
>>>
>>> I do know that a trivial 64-bit executable that uses either - 
>>> [PDFBorder dashPattern] or -[PDFPage attributedString] crashes on  
>>> 10.6, reliably. With 32-bits the latter gives warnings about  
>>> overreleasing objects.
>>
>> Ouch.  I see a crash with -attributedString on 10.6 (64 bit), but  
>> calling areaOfInterestForMouse: on 10.6 (64 bit) seems to work, in  
>> a test app and in Skim.  Regardless, it looks like PDF Kit is  
>> broken with x86_64 on 10.5 and 10.6.
>>
>> I set a breakpoint on -[PDFPage attributedString] in Preview, but  
>> couldn't hit it.
>
> I can imagine they won't use it very much, or perhaps not at all. I  
> think Skim only uses -[PDFPage attributedString] for AppleScript.  
> And as for -[PDFBorder dashPattern], they may not use it because you  
> cannot control that in Preview (it's set to a fixed value). So  
> apparently Preview just got lucky not to hit the problem spots. Or  
> more likely, they weren't discovered by Apple because Preview didn't  
> hit them.
>
> I am actually more worried about the 10.5 bug, because it's far less  
> likely to be fixed soon. Also, for the attributedString I have a  
> workaround (by leaking it), but not for the others.
>
> Christiaan
>

I found workarounds for the bugs in 10.6. I wonder if those bugs are  
present on 10.5.8. Pretty ugly though. Adam could you test this on  
10.5.8? To see the PDFBorder bug, simply try to add a new note with a  
line style (e.g. circle). If it succeeds, there's no bug, otherwise it  
crashes.

Christiaan



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