macOS Tracking areas for Close, Zoom and Minimize buttons

[Simplicated]

Hello,

I have a NSWindow subclass that resembles the Mac App Store window (the window management buttons moved down a little bit). However, the trackers, which show the X, - and + symbols when you rollover these buttons, stay at the places where they used to be. Is there a way to move them too?

I have looked up Google Chrome's source on Github, yet I still can't understand how they did it. (And they use undocumented methods, so I think it will be rejected from the App Store?)

Thanks.

 

[Blakeasd]

If you plan to submit it to the mac app store it will be rejected.

 

[Simplicated]

If you plan to submit it to the mac app store it will be rejected.

Without implementing Google Chrome's way of moving the tracking area (though I still have no idea how), the app will actually be approved because it uses no private APIs whatsoever. However I still need to move the tracking area, otherwise it'll be frustrating to the users.

Any help on moving it without breaking the App Store rules? Thanks so much.

 

[kainjow]

The only supported way I know of mucking around with these buttons is the HITheme API which works on 64-bit but doesn't render the same as the Cocoa version. Plus that API is very rough, but it works.