VB.Net Tutorial/2D Graphics/Rectangle

Create Rectangle From Size And Point

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

  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()
       Dim x As Integer = 40
       Dim y As Integer = 40
       Dim height As Integer = 120
       Dim width As Integer = 120
       Dim pt As New Point(80, 80)
       Dim sz As New Size(100, 100)
       Dim rect1 As New Rectangle(pt, sz)
       Dim redPen As New Pen(Color.Red, 2)
       g.DrawRectangle(redPen, rect1)
       redPen.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</source>

Create Rectangle From X, Y, Width, Height

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

  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()
       Dim x As Integer = 40
       Dim y As Integer = 40
       Dim height As Integer = 120
       Dim width As Integer = 120
       Dim pt As New Point(80, 80)
       Dim sz As New Size(100, 100)
       Dim rect1 As New Rectangle(pt, sz)
       Dim redPen As New Pen(Color.Red, 2)
       g.DrawRectangle(redPen, rect1)
       redPen.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</source>

Draw Rectangle

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

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

End class Public Class FrmComboBox

  Inherits Form

1. Region " Windows Form Designer generated code "

  Public Sub New()
     MyBase.New()
     "This call is required by the Windows Form Designer.
     InitializeComponent()
     "Add any initialization after the InitializeComponent() call
  End Sub
  "Form overrides dispose to clean up the component list.
  Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
     If disposing Then
        If Not (components Is Nothing) Then
           components.Dispose()
        End If
     End If
     MyBase.Dispose(disposing)
  End Sub
  " contains shape list (circle, square, ellipse, pie) 
  Friend WithEvents cboImage As System.Windows.Forms.ruboBox
  "Required by the Windows Form Designer
  Private components As System.ruponentModel.Container
  "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.cboImage = New System.Windows.Forms.ruboBox()
     Me.SuspendLayout()
     "
     "cboImage
     "
     Me.cboImage.DropDownWidth = 121
     Me.cboImage.Items.AddRange(New Object() {"Circle", "Square", "Ellipse", "Pie", "Filled Circle", "Filled Square", "Filled Ellipse", "Filled Pie"})
     Me.cboImage.Location = New System.Drawing.Point(24, 16)
     Me.cboImage.Name = "cboImage"
     Me.cboImage.Size = New System.Drawing.Size(121, 21)
     Me.cboImage.TabIndex = 0
     "
     "FrmComboBox
     "
     Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
     Me.ClientSize = New System.Drawing.Size(292, 273)
     Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.cboImage})
     Me.Name = "FrmComboBox"
     Me.Text = "ComboBoxTest"
     Me.ResumeLayout(False)
  End Sub

1. End Region

  Private Sub cboImage_SelectedIndexChanged _
     (ByVal sender As System.Object, _
     ByVal e As System.EventArgs) _
     Handles cboImage.SelectedIndexChanged
     Dim myGraphics As Graphics = MyBase.CreateGraphics()
     Dim myPen As New Pen(Color.DarkRed)
     Dim mySolidBrush As New SolidBrush(Color.DarkRed)
     myGraphics.Clear(Color.White)
     Select Case cboImage.SelectedIndex
        Case 0 " case circle is selected
           myGraphics.DrawEllipse(myPen, 50, 50, 150, 150)
        Case 1 
           myGraphics.DrawRectangle(myPen, 50, 50, 150, 150)
        Case 2 
           myGraphics.DrawEllipse(myPen, 50, 85, 150, 115)
        Case 3 
           myGraphics.DrawPie(myPen, 50, 50, 150, 150, 0, 45)
        Case 4 
           myGraphics.FillEllipse(mySolidBrush, 50, 50, 150, 150)
        Case 5 
           myGraphics.FillRectangle(mySolidBrush, 50, 50, 150, 150)
        Case 6 
           myGraphics.FillEllipse(mySolidBrush, 50, 85, 150, 115)
        Case 7 
           myGraphics.FillPie(mySolidBrush, 50, 50, 150, 150, 0, 45)
     End Select
  End Sub

End Class</source>

Draw Rectangle in different size

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

  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 a As Graphics =  e.Graphics
       Dim mypen As Pen
       Dim myrect As Rectangle
       mypen = New Pen(System.Drawing.Color.Red, 6)
       a = Me.CreateGraphics
       a.Clear(Me.BackColor)
       a.DrawRectangle(mypen, 10, 10, 150, 150)
       a.DrawRectangle(mypen, 20, 20, 200, 200)
       a.DrawRectangle(mypen, 30, 30, 250, 250)
       a.DrawRectangle(mypen, 40, 40, 300, 300)
       myrect.X = 100
       myrect.Y = 40
       myrect.Width = 100
       myrect.Height = 100
       a.DrawRectangle(mypen, myrect)
       myrect.X = 120
       myrect.Y = 60
       myrect.Width = 100
       myrect.Height = 100
       a.DrawRectangle(mypen, myrect)
       a.Dispose()
       mypen.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</source>

Draw Rectangle with rectangle X, Y, Width and Height

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

  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
       canvas.DrawRectangle(New Pen(Color.Blue, -1), 0, 0, 80, 80)
   End Sub
   Private Sub Form1_Resize(ByVal sender As Object, _
         ByVal e As System.EventArgs) Handles Me.Resize
       Me.Refresh()
   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(515, 459)
       Me.DoubleBuffered = True
       Me.Name = "Form1"
       Me.Text = "Using a Path"
       Me.ResumeLayout(False)
   End Sub

End Class</source>

Fill Rectangle

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

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

End class Public Class FrmComboBox

  Inherits Form

1. Region " Windows Form Designer generated code "

  Public Sub New()
     MyBase.New()
     "This call is required by the Windows Form Designer.
     InitializeComponent()
     "Add any initialization after the InitializeComponent() call
  End Sub
  "Form overrides dispose to clean up the component list.
  Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
     If disposing Then
        If Not (components Is Nothing) Then
           components.Dispose()
        End If
     End If
     MyBase.Dispose(disposing)
  End Sub
  " contains shape list (circle, square, ellipse, pie) 
  Friend WithEvents cboImage As System.Windows.Forms.ruboBox
  "Required by the Windows Form Designer
  Private components As System.ruponentModel.Container
  "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.cboImage = New System.Windows.Forms.ruboBox()
     Me.SuspendLayout()
     "
     "cboImage
     "
     Me.cboImage.DropDownWidth = 121
     Me.cboImage.Items.AddRange(New Object() {"Circle", "Square", "Ellipse", "Pie", "Filled Circle", "Filled Square", "Filled Ellipse", "Filled Pie"})
     Me.cboImage.Location = New System.Drawing.Point(24, 16)
     Me.cboImage.Name = "cboImage"
     Me.cboImage.Size = New System.Drawing.Size(121, 21)
     Me.cboImage.TabIndex = 0
     "
     "FrmComboBox
     "
     Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
     Me.ClientSize = New System.Drawing.Size(292, 273)
     Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.cboImage})
     Me.Name = "FrmComboBox"
     Me.Text = "ComboBoxTest"
     Me.ResumeLayout(False)
  End Sub

1. End Region

  Private Sub cboImage_SelectedIndexChanged _
     (ByVal sender As System.Object, _
     ByVal e As System.EventArgs) _
     Handles cboImage.SelectedIndexChanged
     Dim myGraphics As Graphics = MyBase.CreateGraphics()
     Dim myPen As New Pen(Color.DarkRed)
     Dim mySolidBrush As New SolidBrush(Color.DarkRed)
     myGraphics.Clear(Color.White)
     Select Case cboImage.SelectedIndex
        Case 0 " case circle is selected
           myGraphics.DrawEllipse(myPen, 50, 50, 150, 150)
        Case 1 
           myGraphics.DrawRectangle(myPen, 50, 50, 150, 150)
        Case 2 
           myGraphics.DrawEllipse(myPen, 50, 85, 150, 115)
        Case 3 
           myGraphics.DrawPie(myPen, 50, 50, 150, 150, 0, 45)
        Case 4 
           myGraphics.FillEllipse(mySolidBrush, 50, 50, 150, 150)
        Case 5 
           myGraphics.FillRectangle(mySolidBrush, 50, 50, 150, 150)
        Case 6 
           myGraphics.FillEllipse(mySolidBrush, 50, 85, 150, 115)
        Case 7 
           myGraphics.FillPie(mySolidBrush, 50, 50, 150, 150, 0, 45)
     End Select
  End Sub

End Class</source>

Get Rectangle properties

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

  public Shared Sub Main
       Dim pt As New Point(10, 10)
       Dim sz As New Size(60, 40)
       Dim rect1 As Rectangle = Rectangle.Empty
       Dim rect2 As New Rectangle(20, 30, 30, 10)
       " Set Rectangle properties
       If rect1.IsEmpty Then
           rect1.Location = pt
           rect1.Width = sz.Width
           rect1.Height = sz.Height
       End If
       " Get Rectangle properties
       Dim str As String = "Location:" + rect1.Location.ToString()
       str += ", X:" + rect1.X.ToString()
       str += ", Y:" + rect1.Y.ToString()
       str += ", Left:" + rect1.Left.ToString()
       str += ", Right" + rect1.Right.ToString()
       str += ", Top:" + rect1.Top.ToString()
       str += ", Bottom:" + rect1.Bottom.ToString()
       Console.WriteLine(str)
  End Sub

End class</source>

Location:{X=10,Y=10}, X:10, Y:10, Left:10, Right70, Top:10, Bottom:50

Is inside a Rectangle

<source lang="vbnet">Imports System Imports System.Drawing Imports System.Collections Imports System.ruponentModel Imports System.Windows.Forms Imports System.Data public class RectangleInside

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

End class Public Class Form1

   Inherits System.Windows.Forms.Form
   Dim bigRect As New Rectangle(50, 50, 100, 100)

1. Region " Windows Form Designer generated code "

   Public Sub New()
       MyBase.New()
       "This call is required by the Windows Form Designer.
       InitializeComponent()
       "Add any initialization after the InitializeComponent() call
   End Sub
   "Form overrides dispose to clean up the component list.
   Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
       If disposing Then
           If Not (components Is Nothing) Then
               components.Dispose()
           End If
       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()
       "
       "Form1
       "
       Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
       Me.ClientSize = New System.Drawing.Size(376, 277)
       Me.Name = "Form1"
       Me.Text = "Form1"
   End Sub

1. End Region

   Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
   End Sub
   Protected Overrides Sub Onpaint(ByVal e As PaintEventArgs)
       e.Graphics.FillRectangle(New SolidBrush(Color.Green), bigRect)
   End Sub
   Protected Overrides Sub OnMouseDown(ByVal e As MouseEventArgs)
       If e.Button = MouseButtons.Left Then "
           If bigRect.Contains(New Point(e.X, e.Y)) Then
               MessageBox.Show("Clicked inside rectangle")
           Else
               MessageBox.Show("Clicked outside rectangle")
           End If
       End If
   End Sub

End Class</source>

Rectangle.Inflate

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

  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)
       " Create a Graphics object
       Dim g As Graphics = Me.CreateGraphics()
       " Create PointF, SizeF and RectangleF
       Dim pt As New PointF(30.8F, 20.7F)
       Dim sz As New SizeF(60.0F, 40.0F)
       Dim rect2 As New RectangleF(40.2F, 40.6F, 100.5F, 100.0F)
       Dim rect1 As New RectangleF(pt, sz)
       Dim rect3 As Rectangle = Rectangle.Ceiling(rect1)
       Dim rect4 As Rectangle = Rectangle.Truncate(rect1)
       Dim rect5 As Rectangle = Rectangle.Round(rect2)
       " Draw rectangles
       g.DrawRectangle(Pens.Black, rect3)
       g.DrawRectangle(Pens.Red, rect5)
       Dim inflateSize As New Size(0, 40)
       " Inflate rectangle
       rect5.Inflate(inflateSize)
       " Draw new rectangle
       g.DrawRectangle(Pens.Blue, rect5)
 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</source>

Rectangle.Intersect

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

  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()
       Dim pt As New PointF(30.8F, 20.7F)
       Dim sz As New SizeF(60.0F, 40.0F)
       Dim rect1 As New RectangleF(pt, sz)
       Dim rect2 As New RectangleF(40.2F, 40.6F, 100.5F, 100.0F)
       Dim rect3 As Rectangle = Rectangle.Ceiling(rect1)
       Dim rect4 As Rectangle = Rectangle.Truncate(rect1)
       Dim rect5 As Rectangle = Rectangle.Round(rect2)
       g.DrawRectangle(Pens.Black, rect3)
       g.DrawRectangle(Pens.Red, rect5)
       Dim isectRect As Rectangle = Rectangle.Intersect(rect3, rect5)
       g.FillRectangle(New SolidBrush(Color.Blue), isectRect)
       Dim inflateSize As New Size(0, 40)
       isectRect.Inflate(inflateSize)
       g.DrawRectangle(Pens.Blue, isectRect)
       rect4 = Rectangle.Empty
       rect4.Location = New Point(50, 50)
       rect4.X = 30
       rect4.Y = 40
       Dim unionRect As Rectangle = Rectangle.Union(rect4, rect5)
       g.DrawRectangle(Pens.Green, unionRect)
       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</source>

Rectangle.Union

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

  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)
       " Create a Graphics object
       Dim g As Graphics = Me.CreateGraphics()
       " Create PointF, SizeF and RectangleF
       Dim pt As New PointF(30.8F, 20.7F)
       Dim sz As New SizeF(60.0F, 40.0F)
       Dim rect2 As New RectangleF(40.2F, 40.6F, 100.5F, 100.0F)
       Dim rect1 As New RectangleF(pt, sz)
       Dim rect3 As Rectangle = Rectangle.Ceiling(rect1)
       Dim rect4 As Rectangle = Rectangle.Truncate(rect1)
       Dim rect5 As Rectangle = Rectangle.Round(rect2)
       " Draw rectangles
       g.DrawRectangle(Pens.Black, rect3)
       g.DrawRectangle(Pens.Red, rect5)
       Dim unionRect As Rectangle = Rectangle.Union(rect4, rect5)
       " Draw new rectangle
       g.DrawRectangle(Pens.Green, unionRect)

 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</source>

Rectangle.Union and Intersect

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

  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()
       Dim pt As New PointF(30.8F, 20.7F)
       Dim sz As New SizeF(60.0F, 40.0F)
       Dim rect1 As New RectangleF(pt, sz)
       Dim rect2 As New RectangleF(40.2F, 40.6F, 100.5F, 100.0F)
       Dim rect3 As Rectangle = Rectangle.Ceiling(rect1)
       Dim rect4 As Rectangle = Rectangle.Truncate(rect1)
       Dim rect5 As Rectangle = Rectangle.Round(rect2)
       g.DrawRectangle(Pens.Black, rect3)
       g.DrawRectangle(Pens.Red, rect5)
       Dim isectRect As Rectangle = Rectangle.Intersect(rect3, rect5)
       g.FillRectangle(New SolidBrush(Color.Blue), isectRect)
       Dim inflateSize As New Size(0, 40)
       isectRect.Inflate(inflateSize)
       g.DrawRectangle(Pens.Blue, isectRect)
       rect4 = Rectangle.Empty
       rect4.Location = New Point(50, 50)
       rect4.X = 30
       rect4.Y = 40
       Dim unionRect As Rectangle = Rectangle.Union(rect4, rect5)
       g.DrawRectangle(Pens.Green, unionRect)
       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</source>

Use RectangleF

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

  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()
       Dim x As Single = 40.0F
       Dim y As Single = 40.0F
       Dim height As Single = 120.0F
       Dim width As Single = 120.0F
       Dim pt As New PointF(80.0F, 80.0F)
       Dim sz As New SizeF(100.0F, 100.0F)
       Dim rect1 As New RectangleF(pt, sz)
       Dim rect2 As New RectangleF(x, y, width, height)
       Dim rect3 As New RectangleF(10.0F, 10.0F, 180.0F, 180.0F)
       Dim redPen As New Pen(Color.Red, 2)
       Dim greenBrush As New SolidBrush(Color.Blue)
       Dim blueBrush As New SolidBrush(Color.Green)
       g.DrawRectangle(redPen, rect3.X, rect3.Y, rect3.Width, rect3.Height)
       g.FillRectangle(blueBrush, rect2)
       g.FillRectangle(greenBrush, rect1)
       redPen.Dispose()
       blueBrush.Dispose()
       greenBrush.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</source>