2D Graphics VB.Net Tutorial

Imports System.Drawing.Imaging
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class DrawOnWMFFile
   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 curMetafile As Metafile = Nothing
        Dim g As Graphics = Me.CreateGraphics()
        Dim hdc As IntPtr = g.GetHdc()
        Dim rect As New Rectangle(0, 0, 200, 200)
        curMetafile = New Metafile("newFile.wmf", hdc)
        Dim g1 As Graphics = Graphics.FromImage(curMetafile)
        g1.SmoothingMode = SmoothingMode.HighQuality
        g1.FillRectangle(Brushes.Green, rect)
        rect.Y += 110
        Dim lgBrush As New LinearGradientBrush(rect, Color.Red, Color.Blue, 45.0F)
        g1.FillEllipse(lgBrush, rect)
        rect.Y += 110
        g1.DrawString("MetaFile Sample", New Font("Verdana", 20), lgBrush, 200, 200, StringFormat.GenericTypographic)
        g.ReleaseHdc(hdc)
        g1.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