Bitmap.MakeTransparent : Bitmap « System.Drawing « VB.Net by API

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

Bitmap.MakeTransparent

  

Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D
public class MakeTransparentBitmap
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class

Public Class Form1
    Inherits System.Windows.Forms.Form

    Private Sub Form1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Click
        Me.Close()
    End Sub

    Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
        Dim bm As Bitmap = new Bitmap("yourfile.jpg")

        bm.MakeTransparent(bm.GetPixel(1, 1))

        e.Graphics.DrawImage(bm, 0, 0)
    End Sub
End Class

   
    
  

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