Re: EXC_BAD_ACCESS on NSImageView::setImage
Re: EXC_BAD_ACCESS on NSImageView::setImage
- Subject: Re: EXC_BAD_ACCESS on NSImageView::setImage
- From: Dev <email@hidden>
- Date: Sun, 15 Mar 2009 10:08:43 -0700
I just change my NSWindow from NSBackingStoreBuffered to a NonRetain one and my
application do not crash anymore.
Unfortunatly, as expected, my window is clipping .... how ever i just
realize that the crash might have a relation with the NSWindow double
buffer mechanism.
So my solution to the problem was instead of replacing the NSImage
using setImage,
i grab directly my NSImage from the View, then pick the representation
and write
directly into it.
It is as a matter of fact, a way better effective way of doing what i
was doing and
it's avoiding all my release problems.....
thx
--
I.
On Sat, Mar 14, 2009 at 12:37 PM, Volker in Lists
<email@hidden> wrote:
> Hi,
>
> retainCount is not in anyway useful when debugging - I had many cases of rc
>> 5 with the object being gone the next instance. your error sounds like you
> loose the image at some point in time. retain it and use Instruments to see
> if you leak or over alloc.
>
> Volker
>
> Am 14.03.2009 um 01:23 schrieb Dev:
>
>> On Wed, Mar 11, 2009 at 9:33 AM, Scott Ribe <email@hidden>
>> wrote:
>>>
>>> Does your setImage method retain the image?
>>>
>> The object ExternalView is a NSImageView so the setImage is the one of
>> NSImageView.
>> The doc says nothing about it, but i added some debug log like this :
>>
>> NSLog(@"BEFORE : %d", [NewDisplayImage retainCount]);
>> [CameraView setImage:NewDisplayImage];
>> NSLog(@"AFTER : %d", [NewDisplayImage retainCount]);
>>
>> 2009-03-13 17:17:35.105 xxx[2281:e503] BEFORE : 1
>> 2009-03-13 17:17:35.106 xxx[2281:e503] AFTER : 3
>>
>> So i guess the image have been retained 2 times ....
>> --
>> I.
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