Sets the line height multiple for the receiver.
Original signature is '- (void)setLineHeightMultiple:(CGFloat)aFloat'
Available in Mac OS X v10.3 and later.


- aFloat (CGFloat)
- MISSING

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