Просмотр исходного текста страницы VB.Net/2D/Image

==Convert Image Format==


   
<source lang="vbnet">  
Public Class MainClass
    Public Shared Sub Main()
        ConvertImage("sample.gif", System.Drawing.Imaging.ImageFormat.Bmp, "new.bmp")
    End Sub
    Public Shared Sub ConvertImage(ByVal Filename As String, ByVal DesiredFormat As System.Drawing.Imaging.ImageFormat, ByVal NewFilename As String)
        Try
            Dim imgFile As System.Drawing.Image = System.Drawing.Image.FromFile(Filename)
            imgFile.Save(NewFilename, DesiredFormat)
        Catch ex As Exception
            Throw ex
        End Try
    End Sub
End Class
   
    
  </source>


==Image Recolor Demo==


   
<source lang="vbnet"> 
Imports System
Imports System.Collections
Imports System.ruponentModel
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 RecoloringForm()
        Application.Run(myform)
    End Sub
End Class
Public Class RecoloringForm
    Inherits System.Windows.Forms.Form
#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
        Me.SetStyle(ControlStyles.ResizeRedraw, True)
        Me.SetStyle(ControlStyles.DoubleBuffer, True)
        Me.SetStyle(ControlStyles.AllPaintingInWmPaint, True)
    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.
    Friend WithEvents groupBox2 As System.Windows.Forms.GroupBox
    Friend WithEvents panel2 As System.Windows.Forms.Panel
    Friend WithEvents splitter1 As System.Windows.Forms.Splitter
    Friend WithEvents groupBox1 As System.Windows.Forms.GroupBox
    Friend WithEvents panel1 As System.Windows.Forms.Panel
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.groupBox2 = New System.Windows.Forms.GroupBox()
        Me.panel2 = New System.Windows.Forms.Panel()
        Me.splitter1 = New System.Windows.Forms.Splitter()
        Me.groupBox1 = New System.Windows.Forms.GroupBox()
        Me.panel1 = New System.Windows.Forms.Panel()
        Me.groupBox2.SuspendLayout()
        Me.groupBox1.SuspendLayout()
        Me.SuspendLayout()
        "
        "groupBox2
        "
        Me.groupBox2.Controls.AddRange(New System.Windows.Forms.Control() {Me.panel2})
        Me.groupBox2.Dock = System.Windows.Forms.DockStyle.Fill
        Me.groupBox2.Location = New System.Drawing.Point(187, 0)
        Me.groupBox2.Name = "groupBox2"
        Me.groupBox2.Size = New System.Drawing.Size(205, 182)
        Me.groupBox2.TabIndex = 5
        Me.groupBox2.TabStop = False
        Me.groupBox2.Text = "Mapped Colors"
        "
        "panel2
        "
        Me.panel2.BackColor = System.Drawing.Color.White
        Me.panel2.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
        Me.panel2.Dock = System.Windows.Forms.DockStyle.Fill
        Me.panel2.Location = New System.Drawing.Point(3, 16)
        Me.panel2.Name = "panel2"
        Me.panel2.Size = New System.Drawing.Size(199, 163)
        Me.panel2.TabIndex = 0
        "
        "splitter1
        "
        Me.splitter1.Location = New System.Drawing.Point(184, 0)
        Me.splitter1.Name = "splitter1"
        Me.splitter1.Size = New System.Drawing.Size(3, 182)
        Me.splitter1.TabIndex = 4
        Me.splitter1.TabStop = False
        "
        "groupBox1
        "
        Me.groupBox1.Controls.AddRange(New System.Windows.Forms.Control() {Me.panel1})
        Me.groupBox1.Dock = System.Windows.Forms.DockStyle.Left
        Me.groupBox1.Name = "groupBox1"
        Me.groupBox1.Size = New System.Drawing.Size(184, 182)
        Me.groupBox1.TabIndex = 3
        Me.groupBox1.TabStop = False
        Me.groupBox1.Text = "Original Colors"
        "
        "panel1
        "
        Me.panel1.BackColor = System.Drawing.Color.White
        Me.panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
        Me.panel1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.panel1.Location = New System.Drawing.Point(3, 16)
        Me.panel1.Name = "panel1"
        Me.panel1.Size = New System.Drawing.Size(178, 163)
        Me.panel1.TabIndex = 0
        "
        "RecoloringForm
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(392, 182)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.groupBox2, Me.splitter1, Me.groupBox1})
        Me.Name = "RecoloringForm"
        Me.Text = "RecoloringForm"
        Me.groupBox2.ResumeLayout(False)
        Me.groupBox1.ResumeLayout(False)
        Me.ResumeLayout(False)
    End Sub
#End Region
    Private Sub panel1_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles panel1.Paint
        Dim g As Graphics = e.Graphics
        Dim bmp As Bitmap = New Bitmap("figure2.BMP")
        Dim rect As Rectangle = New Rectangle(0, 0, bmp.Width, bmp.Height)
        rect.Offset((Me.panel1.ClientRectangle.Width - rect.Width) / 2, (Me.panel1.ClientRectangle.Height - rect.Height) / 2)
        g.DrawImage(bmp, rect)
    End Sub
    Private Sub panel2_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles panel2.Paint
        Dim g As Graphics = e.Graphics
        Dim bmp As Bitmap = New Bitmap("figure2.BMP")
        Dim colorMap As ColorMap() = New ColorMap() {New ColorMap()}
        colorMap(0).OldColor = bmp.GetPixel(0, bmp.Height - 1)
        colorMap(0).NewColor = Color.White
        Dim attr As ImageAttributes = New ImageAttributes()
        attr.SetRemapTable(colorMap)
        Dim rect As Rectangle = New Rectangle(0, 0, bmp.Width, bmp.Height)
        rect.Offset((Me.panel2.ClientRectangle.Width - rect.Width) / 2, (Me.panel2.ClientRectangle.Height - rect.Height) / 2)
        g.DrawImage(bmp, rect, 0, 0, rect.Width, rect.Height, g.PageUnit, attr)
    End Sub
End Class
           
         
  </source>


==Image Scale Clip Form==



   
<source lang="vbnet"> 
Imports System
Imports System.Collections
Imports System.ruponentModel
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 ScalingClippingForm()
        Application.Run(myform)
    End Sub
End Class
Public Class ScalingClippingForm
    Inherits System.Windows.Forms.Form
#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
        Me.SetStyle(ControlStyles.ResizeRedraw, True)
        Me.SetStyle(ControlStyles.DoubleBuffer, True)
        Me.SetStyle(ControlStyles.AllPaintingInWmPaint, True)
    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.
    Friend WithEvents splitter1 As System.Windows.Forms.Splitter
    Friend WithEvents groupBox1 As System.Windows.Forms.GroupBox
    Friend WithEvents panel1 As System.Windows.Forms.Panel
    Friend WithEvents groupBox2 As System.Windows.Forms.GroupBox
    Friend WithEvents panel2 As System.Windows.Forms.Panel
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.splitter1 = New System.Windows.Forms.Splitter()
        Me.groupBox1 = New System.Windows.Forms.GroupBox()
        Me.panel1 = New System.Windows.Forms.Panel()
        Me.groupBox2 = New System.Windows.Forms.GroupBox()
        Me.panel2 = New System.Windows.Forms.Panel()
        Me.groupBox1.SuspendLayout()
        Me.groupBox2.SuspendLayout()
        Me.SuspendLayout()
        "
        "splitter1
        "
        Me.splitter1.Location = New System.Drawing.Point(184, 0)
        Me.splitter1.Name = "splitter1"
        Me.splitter1.Size = New System.Drawing.Size(3, 182)
        Me.splitter1.TabIndex = 4
        Me.splitter1.TabStop = False
        "
        "groupBox1
        "
        Me.groupBox1.Controls.AddRange(New System.Windows.Forms.Control() {Me.panel1})
        Me.groupBox1.Dock = System.Windows.Forms.DockStyle.Left
        Me.groupBox1.Name = "groupBox1"
        Me.groupBox1.Size = New System.Drawing.Size(184, 182)
        Me.groupBox1.TabIndex = 3
        Me.groupBox1.TabStop = False
        Me.groupBox1.Text = "Scaling"
        "
        "panel1
        "
        Me.panel1.BackColor = System.Drawing.Color.White
        Me.panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
        Me.panel1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.panel1.Location = New System.Drawing.Point(3, 16)
        Me.panel1.Name = "panel1"
        Me.panel1.Size = New System.Drawing.Size(178, 163)
        Me.panel1.TabIndex = 0
        "
        "groupBox2
        "
        Me.groupBox2.Controls.AddRange(New System.Windows.Forms.Control() {Me.panel2})
        Me.groupBox2.Dock = System.Windows.Forms.DockStyle.Fill
        Me.groupBox2.Name = "groupBox2"
        Me.groupBox2.Size = New System.Drawing.Size(392, 182)
        Me.groupBox2.TabIndex = 5
        Me.groupBox2.TabStop = False
        Me.groupBox2.Text = "Clipping"
        "
        "panel2
        "
        Me.panel2.BackColor = System.Drawing.Color.White
        Me.panel2.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
        Me.panel2.Dock = System.Windows.Forms.DockStyle.Fill
        Me.panel2.Location = New System.Drawing.Point(3, 16)
        Me.panel2.Name = "panel2"
        Me.panel2.Size = New System.Drawing.Size(386, 163)
        Me.panel2.TabIndex = 0
        "
        "ScalingClippingForm
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(392, 182)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.splitter1, Me.groupBox1, Me.groupBox2})
        Me.Name = "ScalingClippingForm"
        Me.Text = "ScalingClippingFor"
        Me.groupBox1.ResumeLayout(False)
        Me.groupBox2.ResumeLayout(False)
        Me.ResumeLayout(False)
    End Sub
#End Region

    Private Sub panel1_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles panel1.Paint
        Dim g As Graphics = e.Graphics
        Dim bmp As Bitmap = New Bitmap("figure2.bmp")
        Dim rect As Rectangle = New Rectangle(10, 10, Me.panel1.ClientRectangle.Width - 20, Me.panel1.ClientRectangle.Height - 20)
        g.DrawImage(bmp, rect)
        g.DrawRectangle(Pens.Black, rect)
    End Sub
    Private Sub panel2_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles panel2.Paint
        Dim g As Graphics = e.Graphics
        Dim bmp As Bitmap = New Bitmap("figure2.bmp")
        Dim destRect As Rectangle = New Rectangle(10, 10, Me.panel2.ClientRectangle.Width - 20, Me.panel2.ClientRectangle.Height - 20)
        Dim srcRect As Rectangle = New Rectangle(0, 0, destRect.Width, destRect.Height)
        g.DrawImage(bmp, destRect, srcRect, g.PageUnit)
        g.DrawRectangle(Pens.Black, destRect)
    End Sub
End Class
           
         
  </source>


==Image Skew Demo==



   
<source lang="vbnet"> 
Imports System
Imports System.Collections
Imports System.ruponentModel
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 SkewingForm()
        Application.Run(myform)
    End Sub
End Class
Public Class SkewingForm
    Inherits System.Windows.Forms.Form
#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.
    Friend WithEvents upButton As System.Windows.Forms.Button
    Friend WithEvents panel1 As System.Windows.Forms.Panel
    Friend WithEvents downButton As System.Windows.Forms.Button
    Friend WithEvents leftButton As System.Windows.Forms.Button
    Friend WithEvents rightButton As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.upButton = New System.Windows.Forms.Button()
        Me.panel1 = New System.Windows.Forms.Panel()
        Me.downButton = New System.Windows.Forms.Button()
        Me.leftButton = New System.Windows.Forms.Button()
        Me.rightButton = New System.Windows.Forms.Button()
        Me.SuspendLayout()
        "
        "upButton
        "
        Me.upButton.Anchor = System.Windows.Forms.AnchorStyles.Top
        Me.upButton.Location = New System.Drawing.Point(132, 10)
        Me.upButton.Name = "upButton"
        Me.upButton.Size = New System.Drawing.Size(24, 23)
        Me.upButton.TabIndex = 5
        Me.upButton.Text = "^"
        "
        "panel1
        "
        Me.panel1.Anchor = (((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
                    Or System.Windows.Forms.AnchorStyles.Left) _
                    Or System.Windows.Forms.AnchorStyles.Right)
        Me.panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.panel1.Location = New System.Drawing.Point(36, 43)
        Me.panel1.Name = "panel1"
        Me.panel1.Size = New System.Drawing.Size(216, 184)
        Me.panel1.TabIndex = 2
        "
        "downButton
        "
        Me.downButton.Anchor = System.Windows.Forms.AnchorStyles.Bottom
        Me.downButton.Location = New System.Drawing.Point(132, 234)
        Me.downButton.Name = "downButton"
        Me.downButton.Size = New System.Drawing.Size(24, 23)
        Me.downButton.TabIndex = 6
        Me.downButton.Text = "v"
        "
        "leftButton
        "
        Me.leftButton.Anchor = System.Windows.Forms.AnchorStyles.Left
        Me.leftButton.Location = New System.Drawing.Point(6, 124)
        Me.leftButton.Name = "leftButton"
        Me.leftButton.Size = New System.Drawing.Size(24, 23)
        Me.leftButton.TabIndex = 3
        Me.leftButton.Text = "<"
        "
        "rightButton
        "
        Me.rightButton.Anchor = System.Windows.Forms.AnchorStyles.Right
        Me.rightButton.Location = New System.Drawing.Point(262, 124)
        Me.rightButton.Name = "rightButton"
        Me.rightButton.Size = New System.Drawing.Size(24, 23)
        Me.rightButton.TabIndex = 4
        Me.rightButton.Text = ">"
        "
        "SkewingForm
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.upButton, Me.panel1, Me.downButton, Me.leftButton, Me.rightButton})
        Me.Name = "SkewingForm"
        Me.Text = "SkewingForm"
        Me.ResumeLayout(False)
    End Sub
#End Region
    Dim bmp As Bitmap = New Bitmap("figure2.bmp")
    Dim offset As Size = New Size(0, 0)
    Private Sub panel1_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles panel1.Paint
        Dim g As Graphics = e.Graphics
        Dim rect As Rectangle = Me.panel1.ClientRectangle
        Dim points As Point() = New Point() { _
            New Point(rect.Left + offset.Width, rect.Top + offset.Height), _
            New Point(rect.Right, rect.Top + offset.Height), _
            New Point(rect.Left, rect.Bottom - offset.Height)}
        g.DrawImage(bmp, points)
    End Sub
    Private Sub upButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles upButton.Click
        offset.Height = offset.Height + 10
        panel1.Refresh()
    End Sub

    Private Sub leftButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles leftButton.Click
        offset.Width = offset.Width - 10
        panel1.Refresh()
    End Sub
    Private Sub downButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles downButton.Click
        offset.Height = offset.Height - 10
        panel1.Refresh()
    End Sub
    Private Sub rightButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rightButton.Click
        offset.Width = offset.Width + 10
        panel1.Refresh()
    End Sub
End Class
           
         
  </source>


==Move an Image==



   
<source lang="vbnet"> 
Imports System
Imports System.Collections
Imports System.ruponentModel
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 PanningForm()
        Application.Run(myform)
    End Sub
End Class
Public Class PanningForm
    Inherits System.Windows.Forms.Form
#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.
    Friend WithEvents upButton As System.Windows.Forms.Button
    Friend WithEvents panel1 As System.Windows.Forms.Panel
    Friend WithEvents downButton As System.Windows.Forms.Button
    Friend WithEvents leftButton As System.Windows.Forms.Button
    Friend WithEvents rightButton As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.upButton = New System.Windows.Forms.Button()
        Me.panel1 = New System.Windows.Forms.Panel()
        Me.downButton = New System.Windows.Forms.Button()
        Me.leftButton = New System.Windows.Forms.Button()
        Me.rightButton = New System.Windows.Forms.Button()
        Me.SuspendLayout()
        "
        "upButton
        "
        Me.upButton.Anchor = System.Windows.Forms.AnchorStyles.Top
        Me.upButton.Location = New System.Drawing.Point(132, 10)
        Me.upButton.Name = "upButton"
        Me.upButton.Size = New System.Drawing.Size(24, 23)
        Me.upButton.TabIndex = 5
        Me.upButton.Text = "^"
        "
        "panel1
        "
        Me.panel1.Anchor = (((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
                    Or System.Windows.Forms.AnchorStyles.Left) _
                    Or System.Windows.Forms.AnchorStyles.Right)
        Me.panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.panel1.Location = New System.Drawing.Point(36, 43)
        Me.panel1.Name = "panel1"
        Me.panel1.Size = New System.Drawing.Size(216, 184)
        Me.panel1.TabIndex = 2
        "
        "downButton
        "
        Me.downButton.Anchor = System.Windows.Forms.AnchorStyles.Bottom
        Me.downButton.Location = New System.Drawing.Point(132, 234)
        Me.downButton.Name = "downButton"
        Me.downButton.Size = New System.Drawing.Size(24, 23)
        Me.downButton.TabIndex = 6
        Me.downButton.Text = "v"
        "
        "leftButton
        "
        Me.leftButton.Anchor = System.Windows.Forms.AnchorStyles.Left
        Me.leftButton.Location = New System.Drawing.Point(6, 124)
        Me.leftButton.Name = "leftButton"
        Me.leftButton.Size = New System.Drawing.Size(24, 23)
        Me.leftButton.TabIndex = 3
        Me.leftButton.Text = "<"
        "
        "rightButton
        "
        Me.rightButton.Anchor = System.Windows.Forms.AnchorStyles.Right
        Me.rightButton.Location = New System.Drawing.Point(262, 124)
        Me.rightButton.Name = "rightButton"
        Me.rightButton.Size = New System.Drawing.Size(24, 23)
        Me.rightButton.TabIndex = 4
        Me.rightButton.Text = ">"
        "
        "PanningForm
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.upButton, Me.panel1, Me.downButton, Me.leftButton, Me.rightButton})
        Me.Name = "PanningForm"
        Me.Text = "PanningForm"
        Me.ResumeLayout(False)
    End Sub
#End Region
    Dim bmp As Bitmap = New Bitmap("figure2.bmp")
    Dim offset As Size = New Size(0, 0)
    Private Sub panel1_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles panel1.Paint
        Dim g As Graphics = e.Graphics
        Dim destRect As Rectangle = Me.panel1.ClientRectangle
        Dim srcRect As Rectangle = New Rectangle(offset.Width, offset.Height, destRect.Width, destRect.Height)
        g.DrawImage(bmp, destRect, srcRect, g.PageUnit)
    End Sub
    Private Sub upButton_Click(ByVal sender As Object, ByVal e As EventArgs) Handles upButton.Click
        offset.Height = offset.Height + 10
        panel1.Refresh()
    End Sub
    Private Sub downButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles downButton.Click
        offset.Height = offset.Height - 10
        panel1.Refresh()
    End Sub
    Private Sub rightButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rightButton.Click
        offset.Width = offset.Width + 10
        panel1.Refresh()
    End Sub
    Private Sub leftButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles leftButton.Click
        offset.Width = offset.Width - 10
        panel1.Refresh()
    End Sub
End Class
           
         
  </source>


==Print Image==



   
<source lang="vbnet"> 
Imports System
Imports System.Collections
Imports System.Data
Imports System.IO
Imports System.Xml.Serialization
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Printing

Public Class MainClass
    Shared Sub Main()
       
       Dim form1 As Form = New Form1()
       Application.Run(form1) 
    End Sub
End Class

Public Class Form1
  Inherits System.Windows.Forms.Form
  Private MyImage As Image
  Private pd As PrintDocument
  Private Preview As PrintPreviewDialog
#Region " Windows Form Designer generated code "
  Public Sub New()
    MyBase.New()
    InitializeComponent()
    MyImage = Bitmap.FromFile("figure2.bmp")
    Preview = New PrintPreviewDialog()
    Preview.UseAntiAlias = True
  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.
  Friend WithEvents lblPrint As System.Windows.Forms.Label
  Friend WithEvents cmdShow As System.Windows.Forms.Button
  <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
    Me.lblPrint = New System.Windows.Forms.Label()
    Me.cmdShow = New System.Windows.Forms.Button()
    Me.SuspendLayout()
    "
    "lblPrint
    "
    Me.lblPrint.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
    Me.lblPrint.Location = New System.Drawing.Point(152, 16)
    Me.lblPrint.Name = "lblPrint"
    Me.lblPrint.Size = New System.Drawing.Size(280, 136)
    Me.lblPrint.TabIndex = 3
    "
    "cmdShow
    "
    Me.cmdShow.Location = New System.Drawing.Point(360, 328)
    Me.cmdShow.Name = "cmdShow"
    Me.cmdShow.Size = New System.Drawing.Size(72, 24)
    Me.cmdShow.TabIndex = 2
    Me.cmdShow.Text = "Show"
    "
    "Form1
    "
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(442, 373)
    Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.lblPrint, Me.cmdShow})
    Me.MaximizeBox = False
    Me.MinimizeBox = False
    Me.Name = "Form1"
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
    Me.Text = "Form1"
    Me.ResumeLayout(False)
  End Sub
#End Region

  Private Sub Form1_Load(ByVal sender As System.Object, _
                         ByVal e As System.EventArgs) Handles MyBase.Load
    pd = New PrintDocument()
    AddHandler pd.PrintPage, New PrintPageEventHandler(AddressOf Me.pd_Print)
    Preview.Document = pd
  End Sub
  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
    DrawIt(e.Graphics)
  End Sub
  Private Sub pd_Print(ByVal sender As Object, ByVal e As PrintPageEventArgs)
    lblPrint.Text += sender.ToString() 
    DrawIt(e.Graphics)
  End Sub
  Private Sub DrawIt(ByVal G As Graphics)
    G.SmoothingMode = SmoothingMode.AntiAlias
    G.DrawImage(MyImage, 10, 10)
  End Sub
  Private Sub cmdShow_Click(ByVal sender As System.Object, _
                            ByVal e As System.EventArgs) Handles cmdShow.Click
    Preview.WindowState = FormWindowState.Maximized
    pd.DocumentName = DateTime.Now.Ticks.ToString()
    Preview.ShowDialog()
  End Sub
End Class
           
         
  </source>