using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Drawing2D;
public class Form1 : System.Windows.Forms.Form{
private System.ComponentModel.Container components = null;
public Form1(){
InitializeComponent();
SetStyle(ControlStyles.Opaque, true);
}
protected override void Dispose( bool disposing ){
if( disposing ){
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
protected override void OnPaint(PaintEventArgs e) {
Graphics g = e.Graphics;
g.FillRectangle(Brushes.White, ClientRectangle);
g.FillRectangle(Brushes.Red, new Rectangle(10, 10, 50, 50));
}
private void InitializeComponent(){
this.components = new System.ComponentModel.Container();
this.Size = new System.Drawing.Size(300,300);
this.Text = "Form1";
}
static void Main() {
Application.Run(new Form1());
}
}
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