Re: Preventing system sleep
Re: Preventing system sleep
- Subject: Re: Preventing system sleep
- From: Joe Ranieri <email@hidden>
- Date: Tue, 16 Feb 2010 16:13:56 -0500
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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