ImageAttributes.SetGamma : ImageAttributes « 2D Graphics « VB.Net Tutorial

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VB.Net Tutorial » 2D Graphics » ImageAttributes 




ImageAttributes.SetGamma
Imports System.Drawing
Imports System.Drawing.Imaging
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms

public class SetGamma
   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 As Graphics = Me.CreateGraphics()
        g.Clear(Me.BackColor)
        Dim lClr As Color = Color.FromArgb(24500)
        Dim uClr As Color = Color.FromArgb(25500)
        Dim ImgAttr As New ImageAttributes
        ImgAttr.SetGamma(2.0F, ColorAdjustType.Default)
        Dim curImage As Image = Image.FromFile("yourfile.jpg")
        g.DrawImage(curImage, 00)
        Dim rect As New Rectangle(00400400)
        g.DrawImage(curImage, rect, 00400400, GraphicsUnit.Pixel, ImgAttr)
        ' Dispose
        g.Dispose()


  End Sub

  Public Sub New()
   
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(513)
    Me.ClientSize = New System.Drawing.Size(292273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen

  End Sub

End Class














17.53.ImageAttributes
17.53.1.Clear ImageAttributes
17.53.2.Draw image with ImageAttributes settingsDraw image with ImageAttributes settings
17.53.3.ImageAttributes.SetColorKeyImageAttributes.SetColorKey
17.53.4.ImageAttributes.SetWrapModeImageAttributes.SetWrapMode
17.53.5.Change Image AttributesChange Image Attributes
17.53.6.ImageAttributes.SetGammaImageAttributes.SetGamma
17.53.7.ImageAttributes.SetThresholdImageAttributes.SetThreshold
17.53.8.ImageAttributes.SetBrushRemapTable
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