Traffic light buttons

[kalvish21]

I use the default traffic light buttons on OSX. For some strange reason when I do beginSheet on my app and show an NSWindow, the traffic light buttons go to the top. Right now the height is 38 on the titleBar.

Is there a way to fix this?

[fancymax]

@kalvish21

a workaround here(Swift):

        let aWindow = self.window as! INAppStoreWindow
        aWindow.titleBarDrawingBlock = {[unowned self] drawsAsMainWindow, drawingRect, edge, clippingPath  in
            NSNotificationCenter.defaultCenter().postNotificationName(NSWindowDidMoveNotification, object:self.window)
        }

[kalvish21]

Can I know waht this code does? and which version of swift?