Color.FromArgb 2 : Color « System.Drawing « VB.Net by API

1. VB.Net by API
2. System.Drawing
3. Color

Color.FromArgb 2

  


Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
Imports System.Math

public class CreateBitmap
   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 bm As New Bitmap("yourfile.jpg")

        Dim new_bm As New Bitmap(bm)

        bm.Dispose()

        Dim gr As Graphics = Graphics.FromImage(new_bm)
        gr.DrawEllipse(Pens.White, 0, 0, new_bm.Width - 1, new_bm.Height - 1)
  
        e.Graphics.DrawImage(new_bm,0,0,400,400)
  End Sub
    Private Sub InvertImage(ByVal bm As Bitmap)
        For y As Integer = 0 To bm.Height - 1
            For x As Integer = 0 To bm.Width - 1
                Dim clr As Color = bm.GetPixel(x, y)
                clr = Color.FromArgb(255,255 - clr.R, 255 - clr.G, 255 - clr.B)

                bm.SetPixel(x, y, clr)
            Next x
        Next y
    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

   
    
  

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