[Rubycocoa-talk] Error

[Craig W. <cwi...@ma...>]

A friend of mine wrote a Python script to access the DictionaryServices
framework. It was a little slow so I wrote one in Ruby and Obj-C to
compare. With Ruby I am getting the error as shown below. Any  
suggestions
as to what I am missing here?

Toda, (thanks)

Craig


Obj-C code that works:
NSString *searchword = [args objectAtIndex:1];
		CFRange range = CFRangeMake(0, [searchword length]);
		CFStringRef def = DCSCopyTextDefinition(NULL, searchword, range);
		
Python code that works:
searchword = sys.argv[1].decode('utf-8')
wordrange = (0, len(searchword))
dictresult = DCSCopyTextDefinition(None, searchword, wordrange)

Ruby code:
word = 'History'								# also tried as NSString
word_len = NSRange.new(0, word.length)			# also tried as CFRange
puts DCSCopyTextDefinition(nil, word, word_len)

The error:
OSX::OCDataConvException: Cannot convert the argument #2 as '{?=ii}'  
to Objective-C

Frameworks:
require 'osx/cocoa'; include OSX
require_framework '/System/Library/Frameworks/CoreServices.framework/ 
Frameworks/DictionaryServices.framework'

DictionaryServices would not load without the full path.