On Aug 30, 2016, at 10:10 AM, Sean McBride <s...@rogue-research.com> wrote: > > I have a drawing bug in my app, and reduced it to a toy app. Basically, I > create an NSBorderlessWindowMask type window who's content view draws a > translucent rounded rect. Its only subview is an NSTextField that draws a > number in a big font. When I display the window, all is well. But when I > change the textfield text, or even simply remove the textfield, its old > string half remains in a ghostly outline. This works in 10.9 and 10.10, but > is buggy in 10.11 and 10.12. I figure it's an OS bug, but maybe the > description rings any bells for anyone?
Does the window have a shadow? Are you invalidating the shadow whenever the content gets redrawn (since the shadow of a partially-transparent window depend on exactly what was drawn non-transparently)? Regards, Ken _______________________________________________ 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