site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com -Ethan On Jul 18, 2008, at 5:29 PM, Steve Checkoway wrote: UpdateSystemActivity( IdleActivity ); -- Steve Checkoway _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/ebold%40apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... Please don't use UpdateSystemActivity(). It will work, but IOPMAssertionCreateWithName()* is a better option. - UpdateSystemActivity() is in the Carbon framework; using it may cause you to unnecessarily link with this large & bulky framework, affecting app launch times and memory usage. - User's cant identify which process is keeping the display awake when you call UpdateSystemActivity. If you use IOPMAssertionCreateWithName(), OS X can keep track of which processes are responsible (visible by running "pmset -g"). - You only have to create an assertion once to keep the display awake; you need to call UpdateSystemActivity() once every 25-30 seconds to cause a fake keyboard press. It's cleaner code for you. Until now, UpdateSystemActivity() was the only game in town, but please don't use it anymore! We've got a better alternative. * 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. On Fri, Jul 18, 2008 at 05:24:45PM -0600, Shayne Wissler wrote: I need an API call/approach for "kicking" the the display-sleep/screensaver timers, as if the user had moved the mouse or pressed a key. I need a program to be able to wake up the display and/or stop the screensaver, without having the user interact with the mouse or keyboard. (E.g., for an app used in a classroom situation to broadcast a message to a Mac hanging on a wall that happened to be in sleep mode). This email sent to ebold@apple.com This email sent to site_archiver@lists.apple.com