It’s saying that you are doing it wrong. Utility windows cannot go full screen. You have yours set to go full screen. It shouldn’t be.
—Rob > On Apr 7, 2018, at 10:24 AM, Alan Snyder <applemail832...@cbfiddle.com> wrote: > > I am getting an assertion failure notice on the console when running a small > test program: > > Assertion failure in -[AWTWindow_Panel _validateCollectionBehavior:], > /Library/Caches/com.apple.xbs/Sources/AppKit/AppKit-1504.83.101/AppKit.subproj/NSWindow.m:14741 > > (This message is on 10.12.6, the details are different on 10.13.) > > When run under Xcode, there is more information: utility panels cannot be > fullscreen primary > > My question—does this represent a bug in AppKit that I should report, or is > it trying to help me by explaining that my program provided an unsupported > set of style bits when creating a window? > > Alan > > _______________________________________________ > > 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/petrock%40mac.com > > This email sent to petr...@mac.com _______________________________________________ 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