[MacRuby-devel] spotlight - MDItemRef

Allison Newman demallien at me.com
Wed Oct 28 02:31:33 PDT 2009


 I'm probably asking a really dumb question here - but I haven't used bridgesupport very much...
Is there a reason why the constant in the example that fails starts with an upper case K, rather than keeping the lower case k given in the framework?

Alli

On Wednesday, October 28, 2009, at 01:31AM, "Laurent Sansonetti" <lsansonetti at apple.com> wrote:
>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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>> MacRuby-devel at lists.macosforge.org
>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>
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