Returns the window’s style mask, indicating what kinds of control items it displays.
Original signature is '- (NSUInteger)styleMask'
Available in Mac OS X v10.0 and later.

C# | Visual Basic | Visual C++ |
public virtual NSWindowStyleMask StyleMask { get; set; }
Public Overridable Property StyleMask As NSWindowStyleMask Get Set
public: virtual property NSWindowStyleMask StyleMask { NSWindowStyleMask get (); void set (NSWindowStyleMask value); }

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)