VB.Net by API/System.Drawing/Image

Материал из VB Эксперт
Версия от 12:49, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Image.Flags

  
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class ImageProperty
   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 curImage As Image = Image.FromFile("yourfile.jpg")
        curImage.RotateFlip(RotateFlipType.RotateNoneFlipXY)
        e.Graphics.DrawImage(curImage, New Rectangle(0, 0, 100, 100))
        Console.WriteLine("Size:" + curImage.Size.ToString)
        Console.WriteLine(" RawFormat:" + curImage.RawFormat.ToString)
        Console.WriteLine(" Vertical Resolution:" + curImage.VerticalResolution.ToString)
        Console.WriteLine(" Horizontal Resolution:" + curImage.HorizontalResolution.ToString)
        Console.WriteLine(" PixelFormat:" + curImage.PixelFormat.ToString)
        Console.WriteLine(" Flags:" + curImage.Flags.ToString)
        
  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


Image.FromFile

  
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class TransparentColor
   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 = e.Graphics
        Dim curImage As Image = Image.FromFile("yourfile.jpg")
        g.DrawImage(curImage, 0, 0, curImage.Width, curImage.Height)
        Dim opqPen As New Pen(Color.FromArgb(255, 0, 255, 0), 10)
        Dim transPen As New Pen(Color.FromArgb(128, 0, 255, 0), 10)
        Dim totTransPen As New Pen(Color.FromArgb(40, 0, 255, 0), 10)
        g.DrawLine(opqPen, 10, 10, 200, 10)
        g.DrawLine(transPen, 10, 30, 200, 30)
        g.DrawLine(totTransPen, 10, 50, 200, 50)
        Dim semiTransBrush As New SolidBrush(Color.FromArgb(60, 0, 255, 0))
        g.FillRectangle(semiTransBrush, 20, 100, 200, 100)
  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


Image.HorizontalResolution

  
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class ImageProperty
   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 curImage As Image = Image.FromFile("yourfile.jpg")
        curImage.RotateFlip(RotateFlipType.RotateNoneFlipXY)
        e.Graphics.DrawImage(curImage, New Rectangle(0, 0, 100, 100))
        Console.WriteLine("Size:" + curImage.Size.ToString)
        Console.WriteLine(" RawFormat:" + curImage.RawFormat.ToString)
        Console.WriteLine(" Vertical Resolution:" + curImage.VerticalResolution.ToString)
        Console.WriteLine(" Horizontal Resolution:" + curImage.HorizontalResolution.ToString)
        Console.WriteLine(" PixelFormat:" + curImage.PixelFormat.ToString)
        Console.WriteLine(" Flags:" + curImage.Flags.ToString)
        
  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


Image.PixelFormat

  
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class ImageProperty
   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 curImage As Image = Image.FromFile("yourfile.jpg")
        curImage.RotateFlip(RotateFlipType.RotateNoneFlipXY)
        e.Graphics.DrawImage(curImage, New Rectangle(0, 0, 100, 100))
        Console.WriteLine("Size:" + curImage.Size.ToString)
        Console.WriteLine(" RawFormat:" + curImage.RawFormat.ToString)
        Console.WriteLine(" Vertical Resolution:" + curImage.VerticalResolution.ToString)
        Console.WriteLine(" Horizontal Resolution:" + curImage.HorizontalResolution.ToString)
        Console.WriteLine(" PixelFormat:" + curImage.PixelFormat.ToString)
        Console.WriteLine(" Flags:" + curImage.Flags.ToString)
        
  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


Image.PropertyItems

  
Imports System.Drawing.Imaging
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class MainClass
   public Shared Sub Main
        Dim curImage As Image = Image.FromFile("yourfile.JPG")
        Dim imgProperties As PropertyItem() = curImage.PropertyItems
        Console.WriteLine(imgProperties.Length.ToString())
        Dim i As Integer
        For i = 0 To imgProperties.Length - 1
            Console.WriteLine("Id :" + imgProperties(i).Id.ToString)
            Console.WriteLine("Value:" + BitConverter.ToString(imgProperties(i).Value))
        Next i
   End Sub
End class


Image.RawFormat

  
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class ImageProperty
   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 curImage As Image = Image.FromFile("yourfile.jpg")
        curImage.RotateFlip(RotateFlipType.RotateNoneFlipXY)
        e.Graphics.DrawImage(curImage, New Rectangle(0, 0, 100, 100))
        Console.WriteLine("Size:" + curImage.Size.ToString)
        Console.WriteLine(" RawFormat:" + curImage.RawFormat.ToString)
        Console.WriteLine(" Vertical Resolution:" + curImage.VerticalResolution.ToString)
        Console.WriteLine(" Horizontal Resolution:" + curImage.HorizontalResolution.ToString)
        Console.WriteLine(" PixelFormat:" + curImage.PixelFormat.ToString)
        Console.WriteLine(" Flags:" + curImage.Flags.ToString)
        
  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


Image.RotateFlip

  

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class Rotate90FlipNone
   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 newImage As Image = Image.FromFile("yourfile.jpg")
        newImage.RotateFlip(RotateFlipType.Rotate90FlipNone)
        e.Graphics.DrawImage(newImage, New Rectangle(0, 0, 100, 100))
  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


Image.VerticalResolution

  
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class ImageProperty
   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 curImage As Image = Image.FromFile("yourfile.jpg")
        curImage.RotateFlip(RotateFlipType.RotateNoneFlipXY)
        e.Graphics.DrawImage(curImage, New Rectangle(0, 0, 100, 100))
        Console.WriteLine("Size:" + curImage.Size.ToString)
        Console.WriteLine(" RawFormat:" + curImage.RawFormat.ToString)
        Console.WriteLine(" Vertical Resolution:" + curImage.VerticalResolution.ToString)
        Console.WriteLine(" Horizontal Resolution:" + curImage.HorizontalResolution.ToString)
        Console.WriteLine(" PixelFormat:" + curImage.PixelFormat.ToString)
        Console.WriteLine(" Flags:" + curImage.Flags.ToString)
        
  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
Источник — «http://vbex.ru/index.php?title=VB.Net_by_API/System.Drawing/Image&oldid=2154»