Custom Minimize Window Button macOS - Swift

I'm developing an app for macOS in Swift. The view I'm designing has the standard "traffic lights" disabled and a transparent full size content title bar. I need to design a new custom traffic light to quit the app and one to minimize the window. I've already found out how to make a custom quit button but I can't manage to create a custom minimize button. I'm new to macOS programming so for sure I'm doing something wrong.

This is the code that I'm trying to use but that does not work:

 @IBAction func miniApp(_ sender: Any) {

I'm using Swift 4

I can't figure out the right way to do this. Thank you in advance


  • You need to send that action to current window. If this action is in your view controller then it should be

    @IBAction func miniApp(_ sender: Any) {