Adds an arc of a circle to the current path, possibly preceded by a straight line segment
Original signature is 'void CGContextAddArc ( CGContextRef c, CGFloat x, CGFloat y, CGFloat radius, CGFloat startAngle, CGFloat endAngle, int clockwise );'
Available in Mac OS X v10.0 and later.

C# | Visual Basic | Visual C++ |

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