Csharp/C Sharp by API/System.Drawing/SmoothingMode

SmoothingMode.AntiAlias

 

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class GraphicUnitDisplay : System.Windows.Forms.Form
{
  private System.ruponentModel.Container components = null;
  public GraphicUnitDisplay()
  {
    this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
    this.ClientSize = new System.Drawing.Size(408, 273);
    this.Name = "GraphicUnitDisplay";
    this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
    this.Text = "GDI+ Coordinate";
    this.Resize += new System.EventHandler(this.OnResize);
    this.Paint += new System.Windows.Forms.PaintEventHandler(this.OnPaint);
  }
  [STAThread]
  static void Main() 
  {
    Application.Run(new GraphicUnitDisplay());
  }
  protected void OnPaint (object sender, System.Windows.Forms.PaintEventArgs e)
  {
      GraphicsUnit gUnit = GraphicsUnit.Pixel;
      Point renderingOrgPt = new Point(0,0);
    Graphics g = e.Graphics;
    g.SmoothingMode = SmoothingMode.AntiAlias;
    
    gUnit = GraphicsUnit.Display;
/*
    
    gUnit = GraphicsUnit.Millimeter;
    gUnit = GraphicsUnit.Inch;
    gUnit = GraphicsUnit.Pixel;
*/
    
    g.PageUnit = gUnit;
    g.TranslateTransform(renderingOrgPt.X,renderingOrgPt.Y);
    g.DrawRectangle(new Pen(Color.Red, 1), 0, 0, 100, 100);
  
    this.Text = string.Format("PageUnit: {0}, Origin: {1}",  gUnit, renderingOrgPt.ToString());
  }
  protected void OnResize (object sender, System.EventArgs e)
  {
    Invalidate();
  }
}