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Re: TXT Records with NSImages
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Re: TXT Records with NSImages


  • Subject: Re: TXT Records with NSImages
  • From: Alexander Spohr <email@hidden>
  • Date: Fri, 13 Mar 2009 09:27:51 +0100

Just got recently into that pit myself.
Read the docs _very_ carefully for this one. (And file a complaint at the bottom of the doc’s page)


dictionaryFromTXTRecordData:
Return Value

A dictionary representing txtData. The dictionary’s keys are NSStringobjects using UTF8 encoding. !!!!The _values_ associated with all the dictionary’s keys _are NSData_ objects that encapsulate strings or data!!!!



If you feed your NSDictionary anything else than NSData it will return nil.
So you just have to convert your image to NSData and store that.


	atze



Am 13.03.2009 um 03:45 schrieb Joe Turner:

Hello,

Recently, I've been working on an app that will sync with an iphone app. So, I am using NSNetServices. I would like the iPhone to display the mac's icon, so I was thinking of using the TXT Record to store the icon. However, whenever I add it to the dictionary, convert the dictionary to data (using the NSNetService methd), it becomes nil. I am guessing that's because it's too large. Then, I decided to set the size of the image to (1,1) thinking it must be small enough. However, I still got nil. Is there a way to send an NSImage (as NSData in the dictionary, PNG formatted using an NSImageRep then converted to data) through a TXTRecord. And, if so, is there a way for the image to be able to be displayed on the iphone? I know an NSImage cannot be displayed on the iphone, which is why I converted it to PNG data, hoping the iphone could read that.

Thanks!

Joe
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