Background blur behind MAAttachedWindow?

Question

Just wondering if it's possible. Right now, here is an example of MAAttachedWindow as follows:

However, I want to know if I can blur the background outside the window, for example:

Is this possible without using private APIs?

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Request code. Well, here's how MAAttachedWindow works. You just feed it normal NSView, and everything else. So here is how I tried to make the blur:

 CALayer *backgroundLayer = [CALayer layer]; [view setLayer:backgroundLayer]; [view setWantsLayer:YES]; CIFilter *blurFilter = [CIFilter filterWithName:@"CIGaussianBlur"]; [blurFilter setDefaults]; [view layer].backgroundFilters = [NSArray arrayWithObject:blurFilter]; 

Answer 1

Not. You cannot do this without using private APIs. (Is my message another 30 characters?)

Answer 2

One thing you might consider is not to blur the material outside the window, but instead to capture a background image, blur it, and then use the blurry version as the background of your window.