Re: Preventing system sleep
Re: Preventing system sleep
- Subject: Re: Preventing system sleep
- From: Laurent Daudelin <email@hidden>
- Date: Tue, 16 Feb 2010 13:18:12 -0800
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.
Oops! The doc says it was introduced in 10.6 and I need to support 10.5. I guess I'll have to check "IOPMAssertionCreate"...
Thanks!
-Laurent.
--
Laurent Daudelin
AIM/iChat/Skype:LaurentDaudelin http://nemesys.dyndns.org
Logiciels Nemesys Software email@hidden
Photo Gallery Store: http://laurentdaudelin.shutterbugstorefront.com/g/galleries
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden