VObjectPath with "Transparent hole" at the middle?

class HoledRectVObject: RectangleVObject
{
	public HoledRectVObject(float x, 
							float y, 
							float w, 
							float h, 
							float holeX, 
							float holeY, 
							float holeRadius, 
							bool makeRoundHole)
		: base(x, y, w, h)

	{
		if (makeRoundHole)
		{
			base.Path.AddEllipse(
							x + holeX - holeRadius, 
							y + holeY - holeRadius, 2 * holeRadius, 2 * holeRadius);
		}
		else
		{
			System.Drawing.PointF[] vertexes = new System.Drawing.PointF[7];

			Random rnd = new Random();
			double angle = Math.PI * rnd.NextDouble();
			double angleStep = 2 * Math.PI / vertexes.Length;
			for (int i = 0; i < vertexes.Length; i++)
			{
				float r = holeRadius + rnd.Next((int)w / 10);
				vertexes[i].X = (float)(x + holeX + Math.Cos(angle) * r);
				vertexes[i].Y = (float)(y + holeY + Math.Sin(angle) * r);

				angle += angleStep;
			}

			base.Path.AddPolygon(vertexes);
		}
	}
}

_mlv.CurrentLayer.VObjects.Add(
	new HoledRectVObject(50, 300, 200, 200, 100, 100, 80, true));
_mlv.CurrentLayer.VObjects.Add(
	new HoledRectVObject(200, 100, 200, 200, 100, 100, 80, false));