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Re: Detecting if UI thread is running, and creating a UI thread

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Re: Detecting if UI thread is running, and creating a UI thread

Subject: Re: Detecting if UI thread is running, and creating a UI thread
From: Alexander Dymerets <email@hidden>
Date: Fri, 02 Mar 2007 19:11:28 +0200
Organization: The Product Engine (Odessa)

Hello Justin,

Justin Armstrong wrote:

The problem is that we cannot assume the caller of CreateJob() is actually a Cocoa/Carbon app with a UI thread. If the caller is a command line app then there will be no UI thread to handle the event loop and respond to the button click events. So...

If the library can be used in command-line tools, you should not link it with AppKit. Normally they don't have a Window Server connection. I think, it would be right to access AppKit classes, such as NSWindow, with NSClassFromString function. If NSClassFromString returns nil, then AppKit framework is not loaded and you should not do any UI operations.

Alexander
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  >Detecting if UI thread is running, and creating a UI thread (From: Justin Armstrong <email@hidden>)




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