Штриховка полигонов

e.Graphics.FillRectangle(new SolidBrush (Color.White) ,e.ClipRectangle);
            Pen blackPen = new Pen( Color.Black, 3 );
             // Create points that define polygon.
            PointF point1 = new PointF( 50.0F, 50.0F );
            PointF point2 = new PointF( 100.0F, 25.0F );
            PointF point3 = new PointF( 200.0F, 5.0F );
            PointF point4 = new PointF( 250.0F, 50.0F );
            PointF point5 = new PointF( 300.0F, 100.0F );
            PointF point6 = new PointF( 350.0F, 200.0F );
            PointF point7 = new PointF( 250.0F, 250.0F );
            PointF[] curvePoints =
             {
                 point1,
                 point2,
                 point3,
                 point4,
                 point5,
                 point6,
                 point7
             };
            e.Graphics.DrawPolygon( blackPen, curvePoints );
            e.Graphics.FillPolygon( new SolidBrush( Color.Red ), curvePoints );

      TPoint points[4];
      points[0] = Point(10,10);
      points[1] = Point(30,10);
      points[2] = Point(130,30);
      points[3] = Point(240,120);
      Image->Canvas->Brush->Color = clRed;
      Image->Canvas->Brush->Style = bsSolid;
      Image->Canvas->Polygon(points, 3);
      Image->Canvas->Brush->Color = clBlue;
      Image->Canvas->Brush->Style = bsVertical;
      Image->Canvas->Polygon(points, 3);

]    public class mybrush : Brush
    {
        private System.Drawing.Drawing2D.DashStyle Style;
        public Color color;
        public System.Drawing.Drawing2D.DashStyle DashStyle { get { return Style; } set { Style = value; } }
    }

e.Graphics.FillRectangle(new SolidBrush(Color.White), e.ClipRectangle);
Pen blackPen = new Pen(Color.Black, 3);
PointF point1 = new PointF(50.0F, 50.0F);
PointF point2 = new PointF(100.0F, 25.0F);
PointF point3 = new PointF(200.0F, 5.0F);
PointF point4 = new PointF(250.0F, 50.0F);
PointF point5 = new PointF(300.0F, 100.0F);
PointF point6 = new PointF(350.0F, 200.0F);
PointF point7 = new PointF(250.0F, 250.0F);
PointF[] curvePoints =
 {
     point1,
     point2,
     point3,
     point4,
     point5,
     point6,
     point7
 };
System.Drawing.Drawing2D.HatchBrush hatchBrush = new HatchBrush(HatchStyle.Vertical, Color.Blue, Color.Red);
 
e.Graphics.DrawPolygon(blackPen, curvePoints);
e.Graphics.FillPolygon(hatchBrush, curvePoints);