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Re: "Kicking" the screensaver/display timers

On Jul 21, 2008, at 5:26 PM, Steve Checkoway wrote:
On Jul 21, 2008, at 1:47 PM, Ethan Bold wrote:
Until now, UpdateSystemActivity() was the only game in town, but please don't use it anymore! We've got a better alternative.

IOPMAssertionCreateWithName() doesn't seem to exist anywhere (google knows nothing about it). IOPMAssertionCreate() doesn't seem to exist in pre-10.5 and since I see no need to restrict to 10.5, that doesn't work for me.

* Prefer IOPMAssertionCreateWithName(), which lets you pass a string describing the purpose of the assertion (for debugging & diagnostic use for Apple & yourself) over the vanilla IOPMASsertionCreate. If you invoke IOPMAssertionCreate from multiple points in your code; naming the assertions differently will help identify leaks.


As I said, IOPMAssertionCreateWithName() doesn't seem to exist. Xcode doesn't know about it, google doesn't know about it, I can't find it on my system:
$ find /System/Library/Frameworks -name '*.h' -print0|xargs -0 grep IOPMAssertionCreateWithName
prints nothing.

Try IOPMAssertionCreate(); it's defined in the 10.4 and 10.5 SDK in IOKit.framework/Versions/A/Headers/pwr_mgt/IOPMLib.h. I think 10.4 was the first place it was published as non-private.

-- Terry
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References: 
 >"Kicking" the screensaver/display timers (From: "Shayne Wissler" <email@hidden>)
 >Re: "Kicking" the screensaver/display timers (From: Steve Checkoway <email@hidden>)
 >Re: "Kicking" the screensaver/display timers (From: Ethan Bold <email@hidden>)
 >Re: "Kicking" the screensaver/display timers (From: Steve Checkoway <email@hidden>)



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