Increments the retain count of a shading object.
Original signature is 'CGShadingRef CGShadingRetain ( CGShadingRef shading );'
Available in Mac OS X version 10.2 and later.


- shading (IntPtr)
- MISSING

The same shading object you passed in as the shading parameter.

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