Mega Code Archive
Change Image Attributes
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Imports System
Imports System.Drawing
Imports System.Collections
Imports System.ComponentModel
Imports System.Windows.Forms
Imports System.Data
Imports System.Drawing.Imaging
public class ChangeImageAttributes
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
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.ComponentModel.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 SaveImgBtn As System.Windows.Forms.Button
Friend WithEvents textBox2 As System.Windows.Forms.TextBox
Friend WithEvents label3 As System.Windows.Forms.Label
Friend WithEvents textBox1 As System.Windows.Forms.TextBox
Friend WithEvents label2 As System.Windows.Forms.Label
Friend WithEvents label1 As System.Windows.Forms.Label
Friend WithEvents trackBar1 As System.Windows.Forms.TrackBar
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.SaveImgBtn = New System.Windows.Forms.Button
Me.textBox2 = New System.Windows.Forms.TextBox
Me.label3 = New System.Windows.Forms.Label
Me.textBox1 = New System.Windows.Forms.TextBox
Me.label2 = New System.Windows.Forms.Label
Me.label1 = New System.Windows.Forms.Label
Me.trackBar1 = New System.Windows.Forms.TrackBar
CType(Me.trackBar1, System.ComponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
'
'SaveImgBtn
'
Me.SaveImgBtn.Location = New System.Drawing.Point(392, 248)
Me.SaveImgBtn.Name = "SaveImgBtn"
Me.SaveImgBtn.Size = New System.Drawing.Size(120, 32)
Me.SaveImgBtn.TabIndex = 13
Me.SaveImgBtn.Text = "Save Image"
'
'textBox2
'
Me.textBox2.Location = New System.Drawing.Point(456, 200)
Me.textBox2.Name = "textBox2"
Me.textBox2.Size = New System.Drawing.Size(64, 20)
Me.textBox2.TabIndex = 12
Me.textBox2.Text = ""
'
'label3
'
Me.label3.Location = New System.Drawing.Point(360, 200)
Me.label3.Name = "label3"
Me.label3.Size = New System.Drawing.Size(88, 24)
Me.label3.TabIndex = 11
Me.label3.Text = "New Height:"
'
'textBox1
'
Me.textBox1.Location = New System.Drawing.Point(456, 168)
Me.textBox1.Name = "textBox1"
Me.textBox1.Size = New System.Drawing.Size(64, 20)
Me.textBox1.TabIndex = 10
Me.textBox1.Text = ""
'
'label2
'
Me.label2.Location = New System.Drawing.Point(360, 168)
Me.label2.Name = "label2"
Me.label2.Size = New System.Drawing.Size(88, 24)
Me.label2.TabIndex = 9
Me.label2.Text = "New Width:"
'
'label1
'
Me.label1.Location = New System.Drawing.Point(360, 48)
Me.label1.Name = "label1"
Me.label1.Size = New System.Drawing.Size(96, 24)
Me.label1.TabIndex = 8
Me.label1.Text = "Transparency"
'
'trackBar1
'
Me.trackBar1.LargeChange = 1
Me.trackBar1.Location = New System.Drawing.Point(352, 88)
Me.trackBar1.Name = "trackBar1"
Me.trackBar1.Size = New System.Drawing.Size(104, 45)
Me.trackBar1.TabIndex = 7
Me.trackBar1.Value = 1
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(520, 341)
Me.Controls.Add(Me.textBox2)
Me.Controls.Add(Me.label3)
Me.Controls.Add(Me.textBox1)
Me.Controls.Add(Me.label2)
Me.Controls.Add(Me.label1)
Me.Controls.Add(Me.trackBar1)
Me.Name = "Form1"
Me.Text = "Form1"
CType(Me.trackBar1, System.ComponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False)
End Sub
#End Region
Dim tpVal as Single = 10
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim curImage As Image = Image.FromFile("yourfile.jpg")
e.Graphics.DrawImage(curImage, AutoScrollPosition.X, AutoScrollPosition.Y, curImage.Width, curImage.Height)
Dim ptsArray As Single()() = {New Single() {1, 0, 0, 0, 0}, New Single() {0, 1, 0, 0, 0}, New Single() {0, 0, 1, 0, 0}, New Single() {0, 0, 0, tpVal, 0}, New Single() {0, 0, 0, 0, 1}}
Dim clrMatrix As New ColorMatrix(ptsArray)
Dim imgAttributes As New ImageAttributes
imgAttributes.SetColorMatrix(clrMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap)
Dim smallImage As Image = Image.FromFile("yourfile.jpg")
e.Graphics.DrawImage(smallImage, New Rectangle(100, 100, 100, 100), 0, 0, smallImage.Width, smallImage.Height, GraphicsUnit.Pixel, imgAttributes)
End Sub
Private Sub trackBar1_Scroll(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles trackBar1.Scroll
tpVal = CSng(trackBar1.Value) / 10
Me.Invalidate()
End Sub
End Class
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