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 { [STAThread] static void Main() { Application.Run(new Form1()); } protected override void OnPaint(PaintEventArgs e) { Graphics g = e.Graphics; Pen p = new Pen(Color.Brown, 15); p.StartCap = LineCap.SquareAnchor; p.EndCap = LineCap.SquareAnchor; g.DrawLine(p, 30, 190, Width - 50, 190); } }