VB.Net by API/System.Drawing.Drawing2D/FillMode

FillMode.Alternate

<source lang="vbnet"> Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class DrawStart5Alternate

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class Public Class Form1

   Private Sub Form1_Paint(ByVal sender As Object, _
         ByVal e As System.Windows.Forms.PaintEventArgs) _
         Handles Me.Paint
       Dim canvas As Graphics = e.Graphics
       Dim starPoints(4) As Point
       Dim angle As Double
       Dim radians As Double
       Dim pointX As Double
       Dim pointY As Double
       Dim counter As Integer
       Const pointDistance As Double = 50
       Const angleStart As Integer = 198
       Const angleRotation As Integer = 144
       angle = angleStart
       For counter = 0 To 4
           angle += angleRotation
           radians = angle * Math.PI / 180
           pointX = Math.Cos(radians) * pointDistance +200
           pointY = Math.Sin(radians) * pointDistance +200
           starPoints(counter) = New Point(CInt(pointX), CInt(pointY))
       Next counter
       canvas.FillPolygon(Brushes.DarkRed, starPoints, Drawing2D.FillMode.Alternate)
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.SuspendLayout()
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(469, 387)
       Me.Name = "Form1"
       Me.Text = "Redrawing by Invalidating"
       Me.ResumeLayout(False)
   End Sub

End Class

 </source>

FillMode.Winding

<source lang="vbnet"> Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class DrawStart5Winding

  public Shared Sub Main
       Application.Run(New Form1)
  End Sub

End class Public Class Form1

   Private Sub Form1_Paint(ByVal sender As Object, _
         ByVal e As System.Windows.Forms.PaintEventArgs) _
         Handles Me.Paint
       Dim canvas As Graphics = e.Graphics
       Dim starPoints(4) As Point
       Dim angle As Double
       Dim radians As Double
       Dim pointX As Double
       Dim pointY As Double
       Dim counter As Integer
       Const pointDistance As Double = 50
       Const angleStart As Integer = 198
       Const angleRotation As Integer = 144
       angle = angleStart
       For counter = 0 To 4
           angle += angleRotation
           radians = angle * Math.PI / 180
           pointX = Math.Cos(radians) * pointDistance +200
           pointY = Math.Sin(radians) * pointDistance +200
           starPoints(counter) = New Point(CInt(pointX), CInt(pointY))
       Next counter
       canvas.FillPolygon(Brushes.DarkRed, starPoints, Drawing2D.FillMode.Winding)
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing AndAlso components IsNot Nothing Then
           components.Dispose()
       End If
       MyBase.Dispose(disposing)
   End Sub
   "Required by the Windows Form Designer
   Private components As System.ruponentModel.IContainer
   "NOTE: The following procedure is required by the Windows Form Designer
   "It can be modified using the Windows Form Designer.  
   "Do not modify it using the code editor.
   <System.Diagnostics.DebuggerStepThrough()> _
   Private Sub InitializeComponent()
       Me.SuspendLayout()
       "
       "Form1
       "
       Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
       Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
       Me.ClientSize = New System.Drawing.Size(469, 387)
       Me.Name = "Form1"
       Me.Text = "Redrawing by Invalidating"
       Me.ResumeLayout(False)
   End Sub

End Class

 </source>