On May 4, 2020, at 03:28:23, Gabriel Zachmann <z...@cs.uni-bremen.de> wrote: > > You mean, it could happen that Apple decides to make ScreenSaverView a > subclass of some class other than NSView ? > (currently, it is a subclass of NSView)
No, I mean just what I said. It's not guaranteed or even suggested that ScreenSaverView be used with anything other than a screensaver. > I agree that with Apple you never know what massive changes are waiting > around the corner. But, are there other reasons why you recommend against > using ScreenSaverView? The screensaver animation in macOS is reliant on the engine that drives it. Recently that changed from an older engine to what we can only guess is a newer one, but some of them still run in what is known as a newly named legacyScreenSaver, yet ScreenSaverEngine still fits in there somehow. We don't know how it works and we don't *need* to know. Screensaver engines run in a very controlled and limited environment. They need to be efficient. They need to treat user input differently. They treat activation totally differently. When you start trying to force such an engine to run in a normal app that can deactivate, hide, minimize, etc, you're throwing it all kinds of things it isn't designed to handle. If you really want to run your screensaver animation in a non-screensaver app, you'll need to control the animation, and rework your classes so you have one class that is used by both the screensaver and your app, and do the actual drawing in that class. It will be called by animateOneFrame in the screensaver and by what animation engine you come up with in your app. -- Steve Mills Drummer, Mac geek _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
