                 // This subview is above us. Don't change it.
             }
         }
+
+        changeWindowMinMaxHeightBy(window, amount)
     }
 
 }

            window.setFrame(newWindowFrame, display: false, animate: false)
        }

        // Adjust the window's min and max sizes to make sense.
        window.minSize = CGSize(width: window.minSize.width, height: window.minSize.height + amount)
        // If there is no max size set (height of 0), don't change it.
        if window.maxSize.height > 0 {
            window.maxSize = CGSize(width: window.maxSize.width, height: window.maxSize.height + amount)
        }

        // Restore the saved autoresize masks.
        restoreViewMasks(windowSubviewsAndMasks)

    func restoreViewMasks(_ viewsAndMasks: [(NSView, NSView.AutoresizingMask)]) {
        for (view, mask) in viewsAndMasks {
            view.autoresizingMask = mask
        }
    }

    private func changeWindowMinMaxHeightBy(_ window: NSWindow, _ amount: CGFloat) {
        // Adjust the window's min and max sizes to make sense.
        window.minSize = CGSize(width: window.minSize.width, height: window.minSize.height + amount)
        // If there is no max size set (height of 0), don't change it.
        if window.maxSize.height > 0 {
            window.maxSize = CGSize(width: window.maxSize.width, height: window.maxSize.height + amount)
        }
    }

