Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class DrawCircle
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 a As Graphics = e.Graphics
Dim mypen As Pen
Dim myrect As RectangleF
mypen = New Pen(System.Drawing.Color.Red, 6)
a = Me.CreateGraphics
a.Clear(Me.BackColor)
a.DrawEllipse(mypen, 100, 100, 50, 50)
a.DrawEllipse(mypen, 75, 75, 100, 100)
a.DrawEllipse(mypen, 25, 25, 200, 200)
a.DrawEllipse(mypen, 0, 0, 250, 250)
myrect.X = 300
myrect.Y = 10
myrect.Width = 250
myrect.Height = 100
a.DrawEllipse(mypen, myrect)
myrect.X = 400
myrect.Y = 10
myrect.Width = 100
myrect.Height = 250
a.DrawEllipse(mypen, myrect)
a.Dispose()
mypen.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