Sets the character-level writing direction attribute to a single right-to-left embedding.
Original signature is '- (void)makeTextWritingDirectionRightToLeft:(id)sender'
Available in Mac OS X v10.6 and later.


- sender (Id)
- Typically the object that invoked this method.

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