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Re: Main Thread UI and Detached Thread

At 1:08 PM -0700 3/31/08, email@hidden wrote: 
Date: Mon, 31 Mar 2008 12:20:41 -0700
From: Mike <email@hidden>
Subject: Re: Main Thread UI and Detached Thread
To: Apple Cocoa List <email@hidden>
Message-ID: <email@hidden>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

I have two methods in the main thread that I call from the worker using
performSelector, etc. The method for updating the progress bar for
example looks like this:

- (void)setProgressBarValue:(double)value
{
	if( progressBar )
	{
		[ progressBar setDoubleValue:value ];

		[ progressBar setNeedsDisplay:YES ];

		[ progressBar display ];
	}
}



are you calling:
	performSelectorOnMainThread:withObject:waitUntilDone:
(or one of its variants) passing in a selector for setProgressBarValue: ?

could it possibly be that setProgressBarValue: takes a double argument, yet performSelector... expects an id for the withObject parameter? thus, you have potential garbage being passed to your setProgressBarValue method.

ken
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