Re: How to catch [NSEvent dealloc]?
Re: How to catch [NSEvent dealloc]?
- Subject: Re: How to catch [NSEvent dealloc]?
- From: Ken Thomases <email@hidden>
- Date: Thu, 8 Jul 2010 00:35:59 -0500
On Jul 8, 2010, at 12:03 AM, Michael Ash wrote:
> On Wed, Jul 7, 2010 at 6:34 PM, Paul Sanders <email@hidden> wrote:
>>> If you can require 10.6 (or iOS 4, maybe?) then you can use the new
>>> associated object API. Use objc_setAssociatedObject to attach your
>>> object to the NSEvent object, and the runtime will automatically take
>>> care of destroying it for you when the NSEvent is destroyed.
>>
>> Sadly (and possibly mistakenly), I'm still supporting 10.4. I think I need
>> to review this policy! Good idea though.
>
> In that case I'd guess you might want to use method swizzling on
> -[NSEvent dealloc]:
>
> http://www.cocoadev.com/index.pl?MethodSwizzling
>
> Beware that swizzling is a powerful and dangerous technique, and you
> want to code your override with the utmost caution, but it's a great
> way to intercept methods like this.
Since the event is application-defined, any handler will, of course, also be application-defined. Can't you handle this in the handler? Or, alternatively, in an override of -[NSApplication sendEvent:]?
Regards,
Ken
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