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