Sets the receiver’s return value.
Original signature is '- (void)setReturnValue:(void *)buffer'
Available in Mac OS X v10.0 and later.


- buffer (IntPtr)
- An untyped buffer whose contents are copied as the receiver's return 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)