Cairo.NativeMethods.cairo_pattern_create_rgba C# (CSharp) Метод

        internal static extern IntPtr cairo_pattern_create_rgba(double r, double g, double b, double a);

 public SolidPattern(Color color, bool solid)
     : base(solid
                                 ? NativeMethods.cairo_pattern_create_rgb(color.R, color.G, color.B)
                                 : NativeMethods.cairo_pattern_create_rgba(color.R, color.G, color.B, color.A),
            true)
 {
 }