Re: Preventing system sleep
Re: Preventing system sleep
- Subject: Re: Preventing system sleep
- From: James Bucanek <email@hidden>
- Date: Wed, 17 Feb 2010 09:01:09 -0700
On 2/16/10 4:10 PM, Neil Allain wrote:
On Feb 16, 2010, at 2:57 PM, Laurent Daudelin wrote:
I'm working on a an app that at some point might start transferring a large file to a USB device. Apparently, if the system is set to go to sleep, the transfer will fail.
I was thinking of using the NSWorkspace extendPowerOffBy: but then the doc says "Currently unimplemented".
So, if my app get a notification that the system is going to sleep, how can I delay it?
You can call UpdateSystemActivity() periodically (such as on a timer) to prevent it from going to sleep.
Neil
You should probably be using IOPMAssertionCreateWithName()
instead if you can require 10.5+. This gives the system a lot
more information about the intent of your code and the potential
ability to show some nice UI to the user.
-- Joe Ranieri
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