Public Sub AddBeziersExample(ByVal e As PaintEventArgs)

    ' Adds two Bezier curves.
    Dim myArray As Point() = {New Point(20, 100), New Point(40, 75), _
    New Point(60, 125), New Point(80, 100), New Point(100, 50), _
    New Point(120, 150), New Point(140, 100)}
    Dim myPath As New GraphicsPath
    myPath.AddBeziers(myArray)
    Dim myPen As New Pen(Color.Black, 2)
    e.Graphics.DrawPath(myPen, myPath)
End Sub

' 导入命名空间
Imports System
Imports System.Collections
Imports System.ComponentModel
Imports System.Windows.Forms
Imports System.Data
Imports System.Configuration
Imports System.Resources
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Imaging

Public Class MainClass
    Shared Sub Main()
        Dim myform As Form = New Form1()
        Application.Run(myform)
    End Sub
End Class

Public Class Form1
    Inherits System.Windows.Forms.Form
    Public Sub New()
        MyBase.New()


        'Add any initialization after the InitializeComponent() call
        Me.SetStyle(ControlStyles.ResizeRedraw, True)
        Me.SetStyle(ControlStyles.DoubleBuffer, True)
        Me.SetStyle(ControlStyles.AllPaintingInWmPaint, True)
    End Sub
    Private Function GetClosedBezierPath(ByVal rect As Rectangle, ByVal points As Point()) As GraphicsPath
        Dim path As GraphicsPath = New GraphicsPath()
        path.AddBeziers(points)
        path.CloseFigure()
        Return path
    End Function
    Private Sub Form1_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint
        Dim g As Graphics = e.Graphics
        Dim width As Integer = Me.ClientRectangle.Width
        Dim height As Integer = Me.ClientRectangle.Height
        Dim rect As Rectangle = New Rectangle(10, 10, width - 20, height - 20)
        Dim format As StringFormat = New StringFormat()
        format.Alignment = StringAlignment.Center
        format.LineAlignment = StringAlignment.Center
        Dim path As GraphicsPath = GetClosedBezierPath(rect, New Point() {New Point(25, height - 25), New Point(width - 25, height - 25), New Point(25, 25), New Point(width - 25, 25)})
        g.FillPath(Brushes.Yellow, path)
        g.DrawPath(Pens.Black, path)

    End Sub
End Class