Load an Image from file and draw on the loaded image : Bitmap « 2D « VB.Net
Load an Image from file and draw on the loaded image
Imports System
Imports System.Windows.Forms
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Drawing.Imaging
Imports System.Drawing
Public Class MainClass
Shared Sub Main()
Dim form1 As new Form1()
Application.Run(form1)
End Sub
End Class
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim bm As New Bitmap("figure2.bmp")
' Make a copy.
Dim new_bm As New Bitmap(bm)
' Dispose of the original Bitmap.
bm.Dispose()
' Draw on the new Bitmap and display the result.
Dim gr As Graphics = Graphics.FromImage(new_bm)
gr.DrawEllipse(Pens.White, 0, 0, new_bm.Width - 1, new_bm.Height - 1)
picImage.Image = new_bm
End Sub
End Class
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Public Class Form1
Inherits System.Windows.Forms.Form
'Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Me.picImage = New System.Windows.Forms.PictureBox
CType(Me.picImage, System.ComponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
'
'picImage
'
Me.picImage.AutoSize = True
Me.picImage.Location = New System.Drawing.Point(0, 0)
Me.picImage.Name = "picImage"
Me.picImage.Size = New System.Drawing.Size(100, 50)
Me.picImage.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize
Me.picImage.TabIndex = 0
Me.picImage.TabStop = False
'
'Form1
'
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(240, 256)
Me.Controls.Add(Me.picImage)
Me.Name = "Form1"
Me.Text = "LoadPicture"
CType(Me.picImage, System.ComponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents picImage As System.Windows.Forms.PictureBox
End Class
