Re: Scroll bar accessibility crashes
Re: Scroll bar accessibility crashes
- Subject: Re: Scroll bar accessibility crashes
- From: "John O. Louch" <email@hidden>
- Date: Mon, 06 Jan 2003 12:27:46 -0800
Which app is crashing, UIElementInspector or the app you are inspecting.
Thanks,
jl
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On Monday, January 6, 2003, at 11:42 AM, Eric Schlegel wrote:
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> On Monday, January 6, 2003, at 11:04 AM, Raymond Fischer wrote:
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>> Interesting bug I've come across, apparently somewhere in the scroll
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>> bar
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>> code. Using the UIElementInspector from Apple's sample code, queries
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>> on the scroll bar thumb will crash the app. I've confirmed this with
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>> Finder, iTunes, and CodeWarrior.
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>>
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>> The interesting part is that the bug does not turn up with Terminal.
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> Probably because Finder, iTunes, and CodeWarrior are Carbon apps, and
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> Terminal is a Cocoa app, so they're two completely different
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> implementations of the scrollbar and accessibility in general.
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Nuts. So much for the easy solution. On the other hand, blaming
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crashes on Apple doesn't involve much work even if it doesn't
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solve the problem. :-)
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> What version of the OS are you seeing this on? In 10.2.3 we made a
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> fair number of changes to the scrollbar control. If it happens in
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> 10.2.3, you should definitely submit a bug with a backtrace for the
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> crash.
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Done that. It is 10.2.3 and very easy to reproduce. But since
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I don't have access to Radar I reported the bug the other way and
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it may take some time to filter through.
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>> Alternately, is it possible to enable the debug foundation libraries
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>> for a CFM app so that I can get more information?
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> In theory, yes, although I've heard of some problems using the debug
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> libraries. You could do the following from the command line:
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> cd /System/Library/Frameworks/CoreFoundation.framework/Versions/A
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> sudo -s
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> mv CoreFoundation CoreFoundation_ship
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> mv CoreFoundation_debug CoreFoundation
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> exit
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> LaunchCFMApp <PathToYourAppHere>
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> When you want to revert to the shipping CoreFoundation, just move
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> CoreFoundation back to CoreFoundation_debug and CoreFoundation_ship
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> back to CoreFoundation. Make sure, as above, to do this from a single
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> "sudo -s" root shell; if you temporarily leave your system without a
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> valid CoreFoundation, just about nothing will work properly, including
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> sudo.
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And so I won't blame you if my system breaks.
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Well I guess if you have a screw and your only tool is a hammer,
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then what you use is the hammer.
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----
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Ray Fischer
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Adobe Systems
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---------------------------------------------
John Louch Internet #: email@hidden
(805) 546 0216
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