Re: Where in a prefPane can I do some polling, and then update the UI?
Re: Where in a prefPane can I do some polling, and then update the UI?
- Subject: Re: Where in a prefPane can I do some polling, and then update the UI?
- From: publiclook <email@hidden>
- Date: Wed, 28 May 2003 12:59:05 -0400
- (void)doSomethingPeriodically:(id)someArg
{
// do something
[self performSelector:@selector(doSomethingPeriodically:)
withObject:someArg afterDelay:1.0];
}
On Wednesday, May 28, 2003, at 11:54 AM, Oscar Morales Vivs wrote:
NSTimer is your friend. Check it out.
On Wednesday, May 28, 2003, at 17:12 Europe/Madrid, Sean McBride wrote:
Hi all,
I have a prefPane (inherits from NSPreferencePane, runs in System
Preferences) and I need to periodically poll for new information and
update the UI based on the results. (Yes, polling is bad, but I have
no
choice due to a known CoreAudio bug: the
kAudioDevicePropertyDeviceIsRunningSomewhere callback does not work.)
But where can I do this polling? AFAICT I don't have access to any
kind
of event loop or anything else than runs periodically. Should I
create a
thread that polls and sleeps? Will I then have issues with 2 threads
updating the UI at once?
Thanks for any pointers!
--
____________________________________________________________
Sean McBride, B. Eng email@hidden
Mac Software Designer +1-514-822-6000
Matrox Electronic Systems Ltd. Montrial, Quibec, Canada
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/*
Oscar Morales Vivs
Eternal Computer Science Student. Master of C++ Templates. Cocoa Nut.
Computer Graphics Illuminati. UI Guru in Training. Dabbler in all
things CS and most which are not.
Web stuff: http://homepage.mac.com/oscarmv/index.html
*/
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