styleMask
Flags that describe the window’s current style, such as if it’s resizable or in full-screen mode.
Declaration
var styleMask: NSWindow.StyleMask { get set }Discussion
The styleMask is settable on macOS 10.6 and later. Setting this property has the same restrictions as the styleMask parameter of init(contentRect:styleMask:backing:defer:). Changing the style mask may cause the view hierarchy to be rebuilt.