VB.Net by API/System.Drawing/Bitmap

Bitmap.FromFile(String fileName)

  
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class SetResolutionBitmap
   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 newImage As Bitmap = Bitmap.FromFile("yourfile.jpg")
        Dim hDpi As Single = 90
        Dim vDpi As Single = 90
        newImage.SetResolution(hDpi, vDpi)
        
        e.Graphics.DrawImage(newImage, Me.ClientRectangle)
  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

Bitmap.GetPixel

  

Imports System
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Imaging
Public Class MainClass
  Shared Sub Main()
     Dim form1 As Form1 = new Form1
     Application.Run(form1)
  End Sub
  
End Class

Public Class Form1
  Inherits System.Windows.Forms.Form
  Public Sub New()
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.Text = "Form1"
  End Sub

  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)
    Dim bmp As Bitmap = New Bitmap("figure2.bmp")
    Dim c As Color
    Dim x, y As Int32
    e.Graphics.DrawImage(bmp, 10, 30)
    For x = 0 To bmp.Width - 1
      For y = 0 To bmp.Height - 1
        c = bmp.GetPixel(x, y)
        c = Color.FromArgb(c.ToArgb() + 100)
        bmp.SetPixel(x, y, c)
      Next
    Next
    e.Graphics.DrawImage(bmp, 150, 30)
  End Sub
End Class

Bitmap.GetPixel(Int x, Int y)

  
Imports System.Drawing.Drawing2D
Imports System
Imports System.Drawing.Text
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Math
Public Class MainClass
   Shared Sub Main()
       Dim form1 As Form = New Form1()
       Application.Run(form1)
   End Sub 
End Class
 
 
Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim bm As New Bitmap("figure2.bmp")
        Dim source_bm As New Bitmap(bm)
    
        bm.Dispose()
        picSource.Image = source_bm
        picDest.Size = picSource.Size
        Dim dest_bm As New Bitmap(source_bm)
        For y As Integer = 0 To dest_bm.Height - 1
            For x As Integer = 0 To dest_bm.Width - 1
                Dim clr As Color = dest_bm.GetPixel(x, y)
                clr = Color.FromArgb(255,255 - clr.R,255 - clr.G,255 - clr.B)
                dest_bm.SetPixel(x, y, clr)
            Next x
        Next y
        picDest.Image = dest_bm
    End Sub
End Class
 
 
<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Public Class Form1
    Inherits System.Windows.Forms.Form
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.SplitContainer1 = New System.Windows.Forms.SplitContainer
        Me.picSource = New System.Windows.Forms.PictureBox
        Me.picDest = New System.Windows.Forms.PictureBox
        Me.SplitContainer1.Panel1.SuspendLayout()
        Me.SplitContainer1.Panel2.SuspendLayout()
        Me.SplitContainer1.SuspendLayout()
        CType(Me.picSource, System.ruponentModel.ISupportInitialize).BeginInit()
        CType(Me.picDest, System.ruponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        "
        "SplitContainer1
        "
        Me.SplitContainer1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.SplitContainer1.Location = New System.Drawing.Point(0, 24)
        Me.SplitContainer1.Name = "SplitContainer1"
        "
        "SplitContainer1.Panel1
        "
        Me.SplitContainer1.Panel1.AutoScroll = True
        Me.SplitContainer1.Panel1.Controls.Add(Me.picSource)
        "
        "SplitContainer1.Panel2
        "
        Me.SplitContainer1.Panel2.AutoScroll = True
        Me.SplitContainer1.Panel2.Controls.Add(Me.picDest)
        Me.SplitContainer1.Size = New System.Drawing.Size(522, 249)
        Me.SplitContainer1.SplitterDistance = 270
        Me.SplitContainer1.TabIndex = 1
        Me.SplitContainer1.Text = "SplitContainer1"
        "
        "picSource
        "
        Me.picSource.AutoSize = True
        Me.picSource.Location = New System.Drawing.Point(0, 0)
        Me.picSource.Name = "picSource"
        Me.picSource.Size = New System.Drawing.Size(208, 184)
        Me.picSource.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize
        Me.picSource.TabIndex = 0
        Me.picSource.TabStop = False
        "
        "picDest
        "
        Me.picDest.AutoSize = True
        Me.picDest.Location = New System.Drawing.Point(0, 0)
        Me.picDest.Name = "picDest"
        Me.picDest.Size = New System.Drawing.Size(184, 184)
        Me.picDest.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize
        Me.picDest.TabIndex = 1
        Me.picDest.TabStop = False
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(522, 273)
        Me.Controls.Add(Me.SplitContainer1)
        Me.Name = "Form1"
        Me.Text = "InvertImageGetSetPixels"
        Me.SplitContainer1.Panel1.ResumeLayout(False)
        Me.SplitContainer1.Panel1.PerformLayout()
        Me.SplitContainer1.Panel2.ResumeLayout(False)
        Me.SplitContainer1.Panel2.PerformLayout()
        Me.SplitContainer1.ResumeLayout(False)
        CType(Me.picSource, System.ruponentModel.ISupportInitialize).EndInit()
        CType(Me.picDest, System.ruponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents SplitContainer1 As System.Windows.Forms.SplitContainer
    Friend WithEvents picSource As System.Windows.Forms.PictureBox
    Friend WithEvents picDest As System.Windows.Forms.PictureBox
End Class

Bitmap.Height

  
Imports System
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Imaging
Public Class MainClass
  Shared Sub Main()
    Dim Bmp As Bitmap = New Bitmap("figure2.bmp")
    Console.WriteLine(Bmp.Height.ToString())
    Console.WriteLine(Bmp.Width.ToString())
    Console.WriteLine(Bmp.VerticalResolution.ToString())
    Console.WriteLine(Bmp.HorizontalResolution.ToString())
    Console.WriteLine(Bmp.PixelFormat.ToString())
    Console.WriteLine(Bmp.Size.ToString())
    Console.WriteLine(Bmp.PhysicalDimension.ToString())
  End Sub
  
End Class

Bitmap.MakeTransparent

  
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
public class MakeTransparentBitmap
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    Inherits System.Windows.Forms.Form
    Private Sub Form1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Click
        Me.Close()
    End Sub
    Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
        Dim bm As Bitmap = new Bitmap("yourfile.jpg")
        bm.MakeTransparent(bm.GetPixel(1, 1))
        e.Graphics.DrawImage(bm, 0, 0)
    End Sub
End Class

Bitmap.Palette

  
Imports System
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Imaging
Public Class MainClass
  Shared Sub Main()
    Dim cp As ColorPalette
    Dim bmp As Bitmap = New Bitmap("figure2.bmp")
    cp = bmp.Palette
    Dim c As Color
    For Each c In cp.Entries
      Console.WriteLine( c.ToString())
    Next
  End Sub
  
End Class

Bitmap.PhysicalDimension

  
Imports System
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Imaging
Public Class MainClass
  Shared Sub Main()
    Dim Bmp As Bitmap = New Bitmap("figure2.bmp")
    Console.WriteLine(Bmp.Height.ToString())
    Console.WriteLine(Bmp.Width.ToString())
    Console.WriteLine(Bmp.VerticalResolution.ToString())
    Console.WriteLine(Bmp.HorizontalResolution.ToString())
    Console.WriteLine(Bmp.PixelFormat.ToString())
    Console.WriteLine(Bmp.Size.ToString())
    Console.WriteLine(Bmp.PhysicalDimension.ToString())
  End Sub
  
End Class

Bitmap.PixelFormat

  
Imports System
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Imaging
Public Class MainClass
  Shared Sub Main()
    Dim Bmp As Bitmap = New Bitmap("figure2.bmp")
    Console.WriteLine(Bmp.Height.ToString())
    Console.WriteLine(Bmp.Width.ToString())
    Console.WriteLine(Bmp.VerticalResolution.ToString())
    Console.WriteLine(Bmp.HorizontalResolution.ToString())
    Console.WriteLine(Bmp.PixelFormat.ToString())
    Console.WriteLine(Bmp.Size.ToString())
    Console.WriteLine(Bmp.PhysicalDimension.ToString())
  End Sub
  
End Class

Bitmap.Save(String fileName, ImageFormat if)

  
Imports System
Imports System.Windows.Forms
Imports System.Collections.Generic
Imports System.ruponentModel
Imports System.Drawing.Imaging
Imports System.Drawing
Public Class MainClass
   Shared Sub Main()
        Dim bm As New Bitmap(256, 256)
        " Draw on it.
        Dim gr As Graphics = Graphics.FromImage(bm)
        gr.Clear(Color.White)
        gr.DrawEllipse(Pens.Red, 0, 0, bm.Width - 1, bm.Height - 1)
        gr.DrawLine(Pens.Green, 0, 0, bm.Width - 1, bm.Height - 1)
        gr.DrawLine(Pens.Blue, bm.Width - 1, 0, 0, bm.Height - 1)
        " Save the result as a JPEG file.
        bm.Save("test.gif", ImageFormat.Gif)
   End Sub 
End Class

Bitmap.SetPixel(Int x, Int y, Color clr)

  
Imports System.Drawing.Drawing2D
Imports System
Imports System.Drawing.Text
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Math
Public Class MainClass
   Shared Sub Main()
       Dim form1 As Form = New Form1()
       Application.Run(form1)
   End Sub 
End Class
 
 
Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim bm As New Bitmap("figure2.bmp")
        Dim source_bm As New Bitmap(bm)
    
        bm.Dispose()
        picSource.Image = source_bm
        picDest.Size = picSource.Size
        Dim dest_bm As New Bitmap(source_bm)
        For y As Integer = 0 To dest_bm.Height - 1
            For x As Integer = 0 To dest_bm.Width - 1
                Dim clr As Color = dest_bm.GetPixel(x, y)
                clr = Color.FromArgb(255,255 - clr.R,255 - clr.G,255 - clr.B)
                dest_bm.SetPixel(x, y, clr)
            Next x
        Next y
        picDest.Image = dest_bm
    End Sub
End Class
 
 
<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Public Class Form1
    Inherits System.Windows.Forms.Form
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.SplitContainer1 = New System.Windows.Forms.SplitContainer
        Me.picSource = New System.Windows.Forms.PictureBox
        Me.picDest = New System.Windows.Forms.PictureBox
        Me.SplitContainer1.Panel1.SuspendLayout()
        Me.SplitContainer1.Panel2.SuspendLayout()
        Me.SplitContainer1.SuspendLayout()
        CType(Me.picSource, System.ruponentModel.ISupportInitialize).BeginInit()
        CType(Me.picDest, System.ruponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        "
        "SplitContainer1
        "
        Me.SplitContainer1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.SplitContainer1.Location = New System.Drawing.Point(0, 24)
        Me.SplitContainer1.Name = "SplitContainer1"
        "
        "SplitContainer1.Panel1
        "
        Me.SplitContainer1.Panel1.AutoScroll = True
        Me.SplitContainer1.Panel1.Controls.Add(Me.picSource)
        "
        "SplitContainer1.Panel2
        "
        Me.SplitContainer1.Panel2.AutoScroll = True
        Me.SplitContainer1.Panel2.Controls.Add(Me.picDest)
        Me.SplitContainer1.Size = New System.Drawing.Size(522, 249)
        Me.SplitContainer1.SplitterDistance = 270
        Me.SplitContainer1.TabIndex = 1
        Me.SplitContainer1.Text = "SplitContainer1"
        "
        "picSource
        "
        Me.picSource.AutoSize = True
        Me.picSource.Location = New System.Drawing.Point(0, 0)
        Me.picSource.Name = "picSource"
        Me.picSource.Size = New System.Drawing.Size(208, 184)
        Me.picSource.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize
        Me.picSource.TabIndex = 0
        Me.picSource.TabStop = False
        "
        "picDest
        "
        Me.picDest.AutoSize = True
        Me.picDest.Location = New System.Drawing.Point(0, 0)
        Me.picDest.Name = "picDest"
        Me.picDest.Size = New System.Drawing.Size(184, 184)
        Me.picDest.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize
        Me.picDest.TabIndex = 1
        Me.picDest.TabStop = False
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(522, 273)
        Me.Controls.Add(Me.SplitContainer1)
        Me.Name = "Form1"
        Me.Text = "InvertImageGetSetPixels"
        Me.SplitContainer1.Panel1.ResumeLayout(False)
        Me.SplitContainer1.Panel1.PerformLayout()
        Me.SplitContainer1.Panel2.ResumeLayout(False)
        Me.SplitContainer1.Panel2.PerformLayout()
        Me.SplitContainer1.ResumeLayout(False)
        CType(Me.picSource, System.ruponentModel.ISupportInitialize).EndInit()
        CType(Me.picDest, System.ruponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents SplitContainer1 As System.Windows.Forms.SplitContainer
    Friend WithEvents picSource As System.Windows.Forms.PictureBox
    Friend WithEvents picDest As System.Windows.Forms.PictureBox
End Class

Bitmap.SetResolution(Single h, Single v)

  
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class SetResolutionBitmap
   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 newImage As Bitmap = Bitmap.FromFile("yourfile.jpg")
        Dim hDpi As Single = 90
        Dim vDpi As Single = 90
        newImage.SetResolution(hDpi, vDpi)
        
        e.Graphics.DrawImage(newImage, Me.ClientRectangle)
  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

Bitmap.VerticalResolution

  
Imports System
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Imaging
Public Class MainClass
  Shared Sub Main()
    Dim Bmp As Bitmap = New Bitmap("figure2.bmp")
    Console.WriteLine(Bmp.Height.ToString())
    Console.WriteLine(Bmp.Width.ToString())
    Console.WriteLine(Bmp.VerticalResolution.ToString())
    Console.WriteLine(Bmp.HorizontalResolution.ToString())
    Console.WriteLine(Bmp.PixelFormat.ToString())
    Console.WriteLine(Bmp.Size.ToString())
    Console.WriteLine(Bmp.PhysicalDimension.ToString())
  End Sub
  
End Class

Bitmap.Width

  
Imports System.Drawing.Drawing2D
Imports System
Imports System.Drawing.Text
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Math
Public Class MainClass
   Shared Sub Main()
       Dim form1 As Form = New Form1()
       Application.Run(form1)
   End Sub 
End Class
 
 
Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim bm As New Bitmap("figure2.bmp")
        Dim source_bm As New Bitmap(bm)
    
        bm.Dispose()
        picSource.Image = source_bm
        picDest.Size = picSource.Size
        Dim dest_bm As New Bitmap(source_bm)
        For y As Integer = 0 To dest_bm.Height - 1
            For x As Integer = 0 To dest_bm.Width - 1
                Dim clr As Color = dest_bm.GetPixel(x, y)
                clr = Color.FromArgb(255,255 - clr.R,255 - clr.G,255 - clr.B)
                dest_bm.SetPixel(x, y, clr)
            Next x
        Next y
        picDest.Image = dest_bm
    End Sub
End Class
 
 
<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Public Class Form1
    Inherits System.Windows.Forms.Form
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.SplitContainer1 = New System.Windows.Forms.SplitContainer
        Me.picSource = New System.Windows.Forms.PictureBox
        Me.picDest = New System.Windows.Forms.PictureBox
        Me.SplitContainer1.Panel1.SuspendLayout()
        Me.SplitContainer1.Panel2.SuspendLayout()
        Me.SplitContainer1.SuspendLayout()
        CType(Me.picSource, System.ruponentModel.ISupportInitialize).BeginInit()
        CType(Me.picDest, System.ruponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        "
        "SplitContainer1
        "
        Me.SplitContainer1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.SplitContainer1.Location = New System.Drawing.Point(0, 24)
        Me.SplitContainer1.Name = "SplitContainer1"
        "
        "SplitContainer1.Panel1
        "
        Me.SplitContainer1.Panel1.AutoScroll = True
        Me.SplitContainer1.Panel1.Controls.Add(Me.picSource)
        "
        "SplitContainer1.Panel2
        "
        Me.SplitContainer1.Panel2.AutoScroll = True
        Me.SplitContainer1.Panel2.Controls.Add(Me.picDest)
        Me.SplitContainer1.Size = New System.Drawing.Size(522, 249)
        Me.SplitContainer1.SplitterDistance = 270
        Me.SplitContainer1.TabIndex = 1
        Me.SplitContainer1.Text = "SplitContainer1"
        "
        "picSource
        "
        Me.picSource.AutoSize = True
        Me.picSource.Location = New System.Drawing.Point(0, 0)
        Me.picSource.Name = "picSource"
        Me.picSource.Size = New System.Drawing.Size(208, 184)
        Me.picSource.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize
        Me.picSource.TabIndex = 0
        Me.picSource.TabStop = False
        "
        "picDest
        "
        Me.picDest.AutoSize = True
        Me.picDest.Location = New System.Drawing.Point(0, 0)
        Me.picDest.Name = "picDest"
        Me.picDest.Size = New System.Drawing.Size(184, 184)
        Me.picDest.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize
        Me.picDest.TabIndex = 1
        Me.picDest.TabStop = False
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(522, 273)
        Me.Controls.Add(Me.SplitContainer1)
        Me.Name = "Form1"
        Me.Text = "InvertImageGetSetPixels"
        Me.SplitContainer1.Panel1.ResumeLayout(False)
        Me.SplitContainer1.Panel1.PerformLayout()
        Me.SplitContainer1.Panel2.ResumeLayout(False)
        Me.SplitContainer1.Panel2.PerformLayout()
        Me.SplitContainer1.ResumeLayout(False)
        CType(Me.picSource, System.ruponentModel.ISupportInitialize).EndInit()
        CType(Me.picDest, System.ruponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents SplitContainer1 As System.Windows.Forms.SplitContainer
    Friend WithEvents picSource As System.Windows.Forms.PictureBox
    Friend WithEvents picDest As System.Windows.Forms.PictureBox
End Class

New Bitmap

  
Imports System.Drawing.Drawing2D
Imports System
Imports System.Drawing.Text
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Math
Public Class MainClass
   Shared Sub Main()
       Dim form1 As Form = New Form1()
       Application.Run(form1)
   End Sub 
End Class
 
 
Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim bm As New Bitmap("figure2.bmp")
        Dim source_bm As New Bitmap(bm)
    
        bm.Dispose()
        picSource.Image = source_bm
        picDest.Size = picSource.Size
        Dim dest_bm As New Bitmap(source_bm)
        For y As Integer = 0 To dest_bm.Height - 1
            For x As Integer = 0 To dest_bm.Width - 1
                Dim clr As Color = dest_bm.GetPixel(x, y)
                clr = Color.FromArgb(255,255 - clr.R,255 - clr.G,255 - clr.B)
                dest_bm.SetPixel(x, y, clr)
            Next x
        Next y
        picDest.Image = dest_bm
    End Sub
End Class
 
 
<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Public Class Form1
    Inherits System.Windows.Forms.Form
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
        Me.SplitContainer1 = New System.Windows.Forms.SplitContainer
        Me.picSource = New System.Windows.Forms.PictureBox
        Me.picDest = New System.Windows.Forms.PictureBox
        Me.SplitContainer1.Panel1.SuspendLayout()
        Me.SplitContainer1.Panel2.SuspendLayout()
        Me.SplitContainer1.SuspendLayout()
        CType(Me.picSource, System.ruponentModel.ISupportInitialize).BeginInit()
        CType(Me.picDest, System.ruponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        "
        "SplitContainer1
        "
        Me.SplitContainer1.Dock = System.Windows.Forms.DockStyle.Fill
        Me.SplitContainer1.Location = New System.Drawing.Point(0, 24)
        Me.SplitContainer1.Name = "SplitContainer1"
        "
        "SplitContainer1.Panel1
        "
        Me.SplitContainer1.Panel1.AutoScroll = True
        Me.SplitContainer1.Panel1.Controls.Add(Me.picSource)
        "
        "SplitContainer1.Panel2
        "
        Me.SplitContainer1.Panel2.AutoScroll = True
        Me.SplitContainer1.Panel2.Controls.Add(Me.picDest)
        Me.SplitContainer1.Size = New System.Drawing.Size(522, 249)
        Me.SplitContainer1.SplitterDistance = 270
        Me.SplitContainer1.TabIndex = 1
        Me.SplitContainer1.Text = "SplitContainer1"
        "
        "picSource
        "
        Me.picSource.AutoSize = True
        Me.picSource.Location = New System.Drawing.Point(0, 0)
        Me.picSource.Name = "picSource"
        Me.picSource.Size = New System.Drawing.Size(208, 184)
        Me.picSource.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize
        Me.picSource.TabIndex = 0
        Me.picSource.TabStop = False
        "
        "picDest
        "
        Me.picDest.AutoSize = True
        Me.picDest.Location = New System.Drawing.Point(0, 0)
        Me.picDest.Name = "picDest"
        Me.picDest.Size = New System.Drawing.Size(184, 184)
        Me.picDest.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize
        Me.picDest.TabIndex = 1
        Me.picDest.TabStop = False
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(522, 273)
        Me.Controls.Add(Me.SplitContainer1)
        Me.Name = "Form1"
        Me.Text = "InvertImageGetSetPixels"
        Me.SplitContainer1.Panel1.ResumeLayout(False)
        Me.SplitContainer1.Panel1.PerformLayout()
        Me.SplitContainer1.Panel2.ResumeLayout(False)
        Me.SplitContainer1.Panel2.PerformLayout()
        Me.SplitContainer1.ResumeLayout(False)
        CType(Me.picSource, System.ruponentModel.ISupportInitialize).EndInit()
        CType(Me.picDest, System.ruponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents SplitContainer1 As System.Windows.Forms.SplitContainer
    Friend WithEvents picSource As System.Windows.Forms.PictureBox
    Friend WithEvents picDest As System.Windows.Forms.PictureBox
End Class

New Bitmap(Int w, Int y)

  
Imports System
Imports System.Windows.Forms
Imports System.Collections.Generic
Imports System.ruponentModel
Imports System.Drawing.Imaging
Imports System.Drawing
Public Class MainClass
   Shared Sub Main()
        Dim bm As New Bitmap(256, 256)
        " Draw on it.
        Dim gr As Graphics = Graphics.FromImage(bm)
        gr.Clear(Color.White)
        gr.DrawEllipse(Pens.Red, 0, 0, bm.Width - 1, bm.Height - 1)
        gr.DrawLine(Pens.Green, 0, 0, bm.Width - 1, bm.Height - 1)
        gr.DrawLine(Pens.Blue, bm.Width - 1, 0, 0, bm.Height - 1)
        " Save the result as a JPEG file.
        bm.Save("test.Bmp", ImageFormat.Bmp)
   End Sub 
End Class

New Bitmap(String fileName)

  

Imports System
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Drawing.Text
Imports System.Drawing.Imaging
Public Class MainClass
  Shared Sub Main()
     Dim form1 As Form1 = new Form1
     Application.Run(form1)
  End Sub
  
End Class

Public Class Form1
  Inherits System.Windows.Forms.Form
  Public Sub New()
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.Text = "Form1"
  End Sub
  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)
    Dim bmp As Bitmap = New Bitmap("figure2.bmp")
    Dim c As Color
    Dim x, y As Int32
    e.Graphics.DrawImage(bmp, 10, 30)
    For x = 0 To bmp.Width - 1
      For y = 0 To bmp.Height - 1
        c = bmp.GetPixel(x, y)
        c = Color.FromArgb(c.ToArgb() + 100)
        bmp.SetPixel(x, y, c)
      Next
    Next
    e.Graphics.DrawImage(bmp, 150, 30)
  End Sub
End Class