VB.Net by API/System.Windows.Forms/PictureBox

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PictureBox.DisplayRectangle

<source lang="vbnet"> Imports System Imports System.Data Imports System.Windows.Forms Imports System.Drawing 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

   Private Sub picCanvas3_Paint(ByVal sender As Object, _
    ByVal e As System.Windows.Forms.PaintEventArgs) Handles picCanvas3.Paint
       e.Graphics.DrawEllipse(Pens.Red, _
           picCanvas3.DisplayRectangle.X, _
           picCanvas3.DisplayRectangle.Y, _
           picCanvas3.DisplayRectangle.Width - 1, _
           picCanvas3.DisplayRectangle.Height - 1)
   End Sub

End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1

   Inherits System.Windows.Forms.Form
   "Form overrides dispose to clean up the component list.
   <System.Diagnostics.DebuggerNonUserCode()> _
   Protected Overloads 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.picCanvas3 = New System.Windows.Forms.PictureBox
       CType(Me.picCanvas3, System.ruponentModel.ISupportInitialize).BeginInit()
       Me.SuspendLayout()
       "
       "picCanvas3
       "
       Me.picCanvas3.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
       Me.picCanvas3.Location = New System.Drawing.Point(360, 8)
       Me.picCanvas3.Name = "picCanvas3"
       Me.picCanvas3.Size = New System.Drawing.Size(168, 168)
       Me.picCanvas3.TabIndex = 3
       Me.picCanvas3.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(536, 214)
       Me.Controls.Add(Me.picCanvas3)
       Me.Name = "Form1"
       Me.Text = "UsePictureBox"
       CType(Me.picCanvas3, System.ruponentModel.ISupportInitialize).EndInit()
       Me.ResumeLayout(False)
   End Sub
   Friend WithEvents picCanvas3 As System.Windows.Forms.PictureBox

End Class


 </source>


PictureBox.Image

<source lang="vbnet"> 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


 </source>