See Also: RadialGradient Members
Before using the gradient pattern, a number of color stops should be defined using AddColorStop() or AddColorStopRgb().
C# Example
pat = new RadialGradient (0.45, 0.4, 0.1, 0.4, 0.4, 0.5); pat.AddColorStop (0, new Color (1, 1, 1, 1) ); pat.AddColorStop (1, new Color (0, 0, 0, 1) ); gr.Pattern = pat; gr.Arc (0.5, 0.5, 0.3, 0, 2 * Math.PI); gr.Fill (); pat.Destroy ();