2D Graphics VB.Net Tutorial

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class LineDashCap
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
public class Form1
  Inherits System.Windows.Forms.Form
  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
    
        Dim g As Graphics = Me.CreateGraphics()
        g.Clear(Me.BackColor)
        Dim blackPen As New Pen(Color.Black, 10)
        blackPen.DashStyle = DashStyle.DashDotDot
        blackPen.DashPattern = New Single() {10}
        blackPen.DashCap = DashCap.Triangle
        g.DrawLine(blackPen, 20, 10, 500, 10)
        blackPen.DashCap = DashCap.Flat
        g.DrawLine(blackPen, 20, 30, 500, 30)
        blackPen.DashCap = DashCap.Round
        g.DrawLine(blackPen, 20, 50, 500, 50)
        blackPen.Dispose()
        g.Dispose()
  End Sub
  Public Sub New()
   
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
  End Sub
End Class