Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class ReleaseHdc
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 hdc As IntPtr = e.Graphics.GetHdc()
Dim newGraphics As Graphics = Graphics.FromHdc(hdc)
newGraphics.DrawRectangle(New Pen(Color.Red, 3), 0, 0, 200, 100)
e.Graphics.ReleaseHdc(hdc)
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
