Animate setContent of an NSWindow

In the past I've been successfully able to fade in an NSWindow using the following code;

if (![statusWindow isVisible])
    {
statusWindow.alphaValue = 0.0;
[statusWindow.animator setAlphaValue:1.0];
    }

CAAnimation *anim = [CABasicAnimation animation];
[anim setDelegate:self];
[statusWindow setAnimations:[NSDictionary dictionaryWithObject:anim forKey:@"alphaValue"]];
[statusWindow makeKeyAndOrderFront:self];

For my current project I'm trying to make a flash similar to the one in Photo Booth. I've created a white NSPanel and was planning to set my NSWindow's content to the panel, and quickly set it back.

Is it possible to set the contentView of 开发者_开发百科an NSWindow using a nice fade effect?

P.S - If there is an easier way you know of how to achieve the flash, please tell me!

Thanks in advance, Ricky.

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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?