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Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class RotateImage
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Inherits System.Windows.Forms.Form
Public Sub New()
MyBase.New()
InitializeComponent()
End Sub
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
Private components As System.ComponentModel.IContainer
Friend WithEvents Button2 As System.Windows.Forms.Button
Friend WithEvents Button3 As System.Windows.Forms.Button
Friend WithEvents Button4 As System.Windows.Forms.Button
Friend WithEvents Panel1 As System.Windows.Forms.Panel
Friend WithEvents Panel2 As System.Windows.Forms.Panel
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.Button2 = New System.Windows.Forms.Button
Me.Button4 = New System.Windows.Forms.Button
Me.Panel1 = New System.Windows.Forms.Panel
Me.Panel2 = New System.Windows.Forms.Panel
Me.SuspendLayout()
'
'Button2
'
Me.Button2.Location = New System.Drawing.Point(88, 232)
Me.Button2.Name = "Button2"
Me.Button2.Size = New System.Drawing.Size(64, 24)
Me.Button2.TabIndex = 3
Me.Button2.Text = "Rotate"
'
'Button4
'
Me.Button4.Location = New System.Drawing.Point(328, 232)
Me.Button4.Name = "Button4"
Me.Button4.Size = New System.Drawing.Size(56, 24)
Me.Button4.TabIndex = 5
Me.Button4.Text = "Exit"
'
'Panel1
'
Me.Panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
Me.Panel1.Location = New System.Drawing.Point(24, 16)
Me.Panel1.Name = "Panel1"
Me.Panel1.Size = New System.Drawing.Size(200, 184)
Me.Panel1.TabIndex = 10
'
'Panel2
'
Me.Panel2.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
Me.Panel2.Location = New System.Drawing.Point(248, 16)
Me.Panel2.Name = "Panel2"
Me.Panel2.Size = New System.Drawing.Size(208, 184)
Me.Panel2.TabIndex = 11
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(464, 286)
Me.Controls.Add(Me.Panel2)
Me.Controls.Add(Me.Panel1)
Me.Controls.Add(Me.Button4)
Me.Controls.Add(Me.Button3)
Me.Controls.Add(Me.Button2)
Me.ResumeLayout(False)
End Sub
Dim pic1, pic2 As Bitmap
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Panel2.Invalidate()
End Sub
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
End
End Sub
Private Sub Panel1_Paint1(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Panel1.Paint
Dim g As Graphics = e.Graphics
g.DrawImage(pic1, 0, 0)
End Sub
Private Sub Panel2_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Panel2.Paint
Dim g As Graphics = e.Graphics
Dim x As Integer = Panel2.Width
Dim col As Color = New Color
Dim pic3 As Bitmap
pic3 = New Bitmap(x, x)
Dim i, j As Integer
For i = 0 To x - 1
For j = 0 To x - 1
col = pic2.GetPixel(i, j)
pic3.SetPixel(i, x - 1 - j, col)
Next
Next
g.DrawImage(pic3, 0, 0)
pic2 = New Bitmap(pic3)
End Sub
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Load
Panel1.Height = Panel1.Width
Panel2.Width = Panel1.Width
Panel2.Height = Panel2.Width
Dim pic As Image = Image.FromFile("YourFile.bmp")
pic1 = New Bitmap(pic, Panel1.Width, Panel1.Height)
pic2 = New Bitmap(pic1)
End Sub
End Class
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