Re: Preventing system sleep
Re: Preventing system sleep
- Subject: Re: Preventing system sleep
- From: Laurent Daudelin <email@hidden>
- Date: Tue, 16 Feb 2010 13:15:43 -0800
Thanks, Joe, I'll have a look!
-Laurent.
--
Laurent Daudelin
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On Feb 16, 2010, at 13:13, Joe Ranieri wrote:
> 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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