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Why use another window? It looks like you're trying to use CoreAnimation already so why not just add a white CALayer to your existing view and animate its opacity?

Matt Lilek 2010-02-14 07:37:53

I thought about that, but I can't find a way to add a layer to an NSWindow?

Ricky 2010-02-14 09:02:38

Assuming that your entire window is using CA then you can get the windows content view with [ myWindow contentView ] and then add your status layer to that. If you set the autoresizingMask appropriately you can make it automatically stay the same size as the window as well.

Jon Steinmetz 2010-02-14 14:57:41

"but I can't find a way to add a layer to an NSWindow"You're thinking about it wrong.Think of NSWindow's as containers for your content view and and other windows and NSView's as containers for other views and layers.You never add a layer directly to a window, only to a subview of that window (be it -contentView or one of your own views) and very rarely will you actually be swapping the -contentView of an NSWindow. A house goes on top of a foundation. Sometimes you'll have to fix a crack or two, but you won't replace it after the house is built.

Matt Lilek 2010-02-14 15:37:22

Okay. I tried: [[mainWindow contentView] addSublayer:whiteLayer]; That returns the error in the console: -[NSView addSublayer:]: unrecognized selector sent to instance 0x100265340Am I going about it the right way?Ricky.

Ricky 2010-02-15 09:26:04

No. What does [mainWindow contentView] return? An NSView. On what class is -addSublayer: defined on? On CALayer. Hopefully you should see now, that you need to get a CALayer from that NSView so: [[[mainWindow contentView] layer] addSublayer:whiteLayer];

Matt Lilek 2010-02-15 23:55:25

Thanks Matt. Except I must be doing something wrong with my CALayer here, because nothing is displaying on the window; CALayer *whiteFlasher = [CALayer layer]; whiteFlasher.backgroundColor = CGColorGetConstantColor(kCGColorWhite); whiteFlasher.position = CGPointMake(50, 50); whiteFlasher.bounds = CGRectMake (0, 0, 1920, 1000); [[[windowContent contentView] layer] addSublayer:whiteFlasher];

Ricky 2010-02-16 08:51:42

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Animate setContent of an NSWindow

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