Re: Can I make custom pasteboard type for an object reference?
Re: Can I make custom pasteboard type for an object reference?
- Subject: Re: Can I make custom pasteboard type for an object reference?
- From: "Sean McBride" <email@hidden>
- Date: Fri, 16 Oct 2009 15:51:51 -0500
- Organization: Rogue Research Inc.
On 10/15/09 6:34 AM, Timothy Stafford Larkin said:
>I messed around with this problem for some time, before I gave up
>trying to be clever and cast the pointer as an unsigned long.
>
> NSNumber *p = [NSNumber numberWithUnsignedLong:(unsigned long)object];
>
>The number can be added to a pasteboard. Or if dragging more than one
>object, NSNumbers can be added to an NSArray, and the array written to
>the pasteboard.
That seems quite dangerous, especially in a GC app. Creating such an
NSNumber will not keep a strong reference to "object", and so it risks
getting prematurely collected. If you do do this, better CFRetain the
object first.
--
____________________________________________________________
Sean McBride, B. Eng email@hidden
Rogue Research www.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
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