Returns a rectangle that is smaller or larger than the source rectangle, with the same center point.
Original signature is 'CGRect CGRectInset ( CGRect rect, CGFloat dx, CGFloat dy );'
Available in Mac OS X v10.0 and later.


A rectangle. The origin value is offset in the x-axis by the distance specified by the dx parameter and in the y-axis by the distance specified by the dy parameter, and its size adjusted by (2*dx,2*dy), relative to the source rectangle. If dx and dy are positive values, then the rectangle’s size is decreased. If dx and dy are negative values, the rectangle’s size is increased.

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