[MacRuby-devel] NSView.knowsPageRange( range )

[Robert Rice]

Thanks Laurent - it works!

Bob Rice


On May 23, 2010, at 1:36 AM, Laurent Sansonetti wrote:

> Hi Robert,
> 
> Can you try:
> 
> def knowsPageRange(range_ptr)
>  range_ptr[0] = NSMakeRange(1, 1)
>  true
> end
> 
> This method is called with a pointer to an NSRange structure and you're supposed to set it to something in case you return true. In C, it would have been:
> 
> *range_ptr = NSMakeRange(1, 1)
> 
> Doing range[0].location=1 would do in C:
> 
> (*range_ptr).location = 1;
> 
> Which isn't what you want.
> 
> I don't know why range.location=1 was working in earlier versions of MacRuby. It should really be a Pointer object.
> 
> Laurent
> 
> On May 22, 2010, at 9:50 PM, Robert Rice wrote:
> 
>> I'm have some trouble understanding the new Pointer class. In older versions of MacRuby I used:
>> 
>> 	def knowsPageRange( range ) # Override pagination. Image my clip on some printers
>> 		# The range is passed by reference.
>> 		range.location = 1 # first page number
>> 		range.length = 1
>> 		true
>> 	end
>> 	
>> MacRuby 0.6 gives me undefined method location= for the Pointer class. Adding an index eliminates the error but then my printing doesn't stop at one page:
>> 
>> 	def knowsPageRange( range ) # Override pagination. Image my clip on some printers
>> 		# The range is passed by reference.
>> 		range[0].location = 1 # first page number
>> 		range[0].length = 1
>> 		true
>> 	end
>> 
>> How can I fix this?
>> Thanks,
>> Bob Rice
>> 
>> _______________________________________________
>> MacRuby-devel mailing list
>> MacRuby-devel at lists.macosforge.org
>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
> 
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