本文整理汇总了VB.NET中System.Drawing.Imaging.ImageAttributes.SetGamma方法的典型用法代码示例。如果您正苦于以下问题：VB.NET ImageAttributes.SetGamma方法的具体用法？VB.NET ImageAttributes.SetGamma怎么用？VB.NET ImageAttributes.SetGamma使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Drawing.Imaging.ImageAttributes的用法示例。
在下文中一共展示了ImageAttributes.SetGamma方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: SetGammaExample
Public Sub SetGammaExample(ByVal e As PaintEventArgs)
' Create an Image object from the file Camera.jpg, and draw
' it to screen.
Dim myImage As Image = Image.FromFile("Camera.jpg")
e.Graphics.DrawImage(myImage, 20, 20)
' Create an ImageAttributes object and set the gamma to 2.2.
Dim imageAttr As New System.Drawing.Imaging.ImageAttributes
imageAttr.SetGamma(2.2F)
' Draw the image with gamma set to 2.2.
Dim rect As New Rectangle(250, 20, 200, 200)
e.Graphics.DrawImage(myImage, rect, 0, 0, 200, 200, _
GraphicsUnit.Pixel, imageAttr)
' Image
End Sub示例2: SetGamma
' 导入命名空间
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 g As Graphics = Me.CreateGraphics()
g.Clear(Me.BackColor)
Dim lClr As Color = Color.FromArgb(245, 0, 0)
Dim uClr As Color = Color.FromArgb(255, 0, 0)
Dim ImgAttr As New ImageAttributes
ImgAttr.SetGamma(2.0F, ColorAdjustType.Default)
Dim curImage As Image = Image.FromFile("yourfile.jpg")
g.DrawImage(curImage, 0, 0)
Dim rect As New Rectangle(0, 0, 400, 400)
g.DrawImage(curImage, rect, 0, 0, 400, 400, GraphicsUnit.Pixel, ImgAttr)
' Dispose
g.Dispose()
End Sub
Public Sub New()
MyBase.New()
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
End Sub
End Class