Returns YES if the receiver automatically changes its width to accommodate the width of its text, NO if it doesn’t.
Original signature is '- (BOOL)isHorizontallyResizable'
Available in Mac OS X v10.0 and later.


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