using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Text;
using System.Windows.Forms;
public class Form1 : Form {
protected override void OnPaint(PaintEventArgs e) {
Graphics g = e.Graphics;
g.FillRectangle(Brushes.White, this.ClientRectangle);
HatchBrush hb = new HatchBrush(
HatchStyle.WideUpwardDiagonal,
Color.White,
Color.Black);
Pen hp = new Pen(hb, 8);
g.DrawRectangle(hp, 15, 15, 70, 70);
hb.Dispose();
hp.Dispose();
}
public static void Main() {
Application.Run(new Form1());
}
}