Returns the title that the button displays when it’s in its alternate state as an attributed string.
Original signature is '- (NSAttributedString *)attributedAlternateTitle'
Available in Mac OS X v10.0 and later.

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