Indicates whether a rectangle is invalid.


- rect (CGRect)
- The rectangle to examine.

Returns 1 if the specified rectangle is null; otherwise, 0.

Original declaration is : int CGRectIsNull ( CGRect rect );

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