[MacRuby-devel] spotlight - MDItemRef

[Laurent Sansonetti]

Hi Alan,

I'm afraid the MD* APIs haven't been covered by BridgeSupport yet, so  
it may not be possible to call it directly from MacRuby at this point.  
I would recommend to file a bug at http://bugreporter.apple.com so  
that we can consider this for a future Mac OS X release, and to wrap  
this C API into an Objective-C class that you can call from MacRuby in  
the meantime.

Laurent

On Oct 27, 2009, at 5:13 PM, Alan Skipp wrote:

> Would anyone be able to give me a hint on how to get the following
> objective-c code working with macruby. The code uses spotlight to
> extract metadata from a file.
>
> MDItemRef inspectedRef =
> MDItemCreate(kCFAllocatorDefault,(CFStringRef)path);
> CFArrayRef attributeNames = MDItemCopyAttributeNames(inspectedRef);
> 	
> NSLog(@"%@", (NSArray*)attributeNames);
>
>
> I was hoping that including the 'CoreServices' framework would work,  
> but
> no joy.
>
>>> framework 'CoreServices'
> => true
>>> item = MDItemCreate(KCFAllocatorDefault, '/Users/alan/Desktop/ 
>>> test.jpg')
> NameError: uninitialized constant KCFAllocatorDefault
> 	from core:in `const_missing:'
> 	from (irb):2:in `<main>'
> 	from core:in `eval:'
> 	from core:in `evaluate:'
> -- 
>  Alan Skipp
>  al_skipp at fastmail.fm
>
> -- 
> http://www.fastmail.fm - IMAP accessible web-mail
>
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