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Re: Re: Threads

Subject: Re: Re: Threads
From: Alf Watt <email@hidden>
Date: Sun, 24 Jul 2005 20:21:27 -0700

Ok. performSelectorOnMainThread: did the trick. So, now, for educational purpose, what is the intended use of this pair of methods then ? (lockFocusIfCanDraw, and unlockFocus) ?
--
  Laurent

It's for NSView subclasses which want to perform drawing operations in a separate thread. You might do this when drawing to an offscreen window or when monitoring the output of secondary threads. There is a paragraph about it in the Cocoa Thread Safety page, search for 'NSView':

http://developer.apple.com/documentation/Cocoa/Conceptual/ Multithreading/articles/CocoaSafety.html

Best,
Alf
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