public static void DrawGeometry(this ID2D1DeviceContext context, ID2D1Geometry geometry, ID2D1Brush brush, float strokeWidth, ID2D1StrokeStyle strokeStyle = null) { if (context == null) { throw new ArgumentNullException(nameof(context)); } if (geometry == null) { throw new ArgumentNullException(nameof(geometry)); } if (brush == null) { throw new ArgumentNullException(nameof(brush)); } context.DrawGeometry(geometry, brush, strokeWidth, strokeStyle); }