using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Drawing.Drawing2D; public class Form1 : Form { private System.Windows.Forms.PictureBox picNone; public Form1() { InitializeComponent(); } private void picNone_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { e.Graphics.SmoothingMode = SmoothingMode.AntiAlias; Pen drawingPen = new Pen(Color.Red, 5); e.Graphics.DrawEllipse(drawingPen, 10, 10, 300, 40); } private void InitializeComponent() { this.picNone = new System.Windows.Forms.PictureBox(); this.SuspendLayout(); // // picNone // this.picNone.Location = new System.Drawing.Point(8, 16); this.picNone.Name = "picNone"; this.picNone.Size = new System.Drawing.Size(328, 64); this.picNone.TabIndex = 0; this.picNone.TabStop = false; this.picNone.Paint += new System.Windows.Forms.PaintEventHandler(this.picNone_Paint); // // Smoothing // this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; this.ClientSize = new System.Drawing.Size(392, 382); this.Controls.Add(this.picNone); this.Name = "Smoothing"; this.Text = "Smoothing"; this.ResumeLayout(false); } [STAThread] static void Main() { Application.EnableVisualStyles(); Application.Run(new Form1()); } }