Csharp/C Sharp/2D Graphics/Smooth Paint

HatchBrush Demo

/*
GDI+ Programming in C# and VB .NET
by Nick Symmonds
Publisher: Apress
ISBN: 159059035X
*/
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
namespace hatch_c
{
    /// <summary>
    /// Summary description for hatch.
    /// </summary>
    public class hatch : System.Windows.Forms.Form
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ruponentModel.Container components = null;
        public hatch()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();
            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if (components != null) 
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }
        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
      // 
      // hatch
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(292, 273);
      this.Name = "hatch";
      this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
      this.Text = "hatch";
      this.Load += new System.EventHandler(this.hatch_Load);
    }
        #endregion
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main() 
        {
            Application.Run(new hatch());
        }
    private void hatch_Load(object sender, System.EventArgs e)
    {
    
    }
    protected override void OnPaint ( PaintEventArgs e )
    {
      HatchBrush h = new HatchBrush(HatchStyle.BackwardDiagonal,
                                    Color.Black, 
                                    Color.Cyan);
      Pen P = new Pen(h, 20);
      e.Graphics.Clear(Color.AliceBlue);
      e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
      e.Graphics.DrawLine(P, 80, 90, 80, 200 );
      e.Graphics.FillEllipse(h, 50, 50, 50, 30 );
    }
    }
}

Smoothing Paint

/*
User Interfaces in C#: Windows Forms and Custom Controls
by Matthew MacDonald
Publisher: Apress
ISBN: 1590590457
*/
using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
namespace GDI_Basics
{
    /// <summary>
    /// Summary description for Smoothing.
    /// </summary>
    public class Smoothing : System.Windows.Forms.Form
    {
        internal System.Windows.Forms.GroupBox grpHighQuality;
        internal System.Windows.Forms.PictureBox picHighQuality;
        internal System.Windows.Forms.GroupBox grpAntiAlias;
        internal System.Windows.Forms.PictureBox picAntialias;
        internal System.Windows.Forms.GroupBox grpHighSpeed;
        internal System.Windows.Forms.PictureBox picHighSpeed;
        internal System.Windows.Forms.GroupBox grpNone;
        internal System.Windows.Forms.PictureBox picNone;
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ruponentModel.Container components = null;
        public Smoothing()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();
            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if(components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }
        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.grpHighQuality = new System.Windows.Forms.GroupBox();
            this.picHighQuality = new System.Windows.Forms.PictureBox();
            this.grpAntiAlias = new System.Windows.Forms.GroupBox();
            this.picAntialias = new System.Windows.Forms.PictureBox();
            this.grpHighSpeed = new System.Windows.Forms.GroupBox();
            this.picHighSpeed = new System.Windows.Forms.PictureBox();
            this.grpNone = new System.Windows.Forms.GroupBox();
            this.picNone = new System.Windows.Forms.PictureBox();
            this.grpHighQuality.SuspendLayout();
            this.grpAntiAlias.SuspendLayout();
            this.grpHighSpeed.SuspendLayout();
            this.grpNone.SuspendLayout();
            this.SuspendLayout();
            // 
            // grpHighQuality
            // 
            this.grpHighQuality.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                         this.picHighQuality});
            this.grpHighQuality.FlatStyle = System.Windows.Forms.FlatStyle.System;
            this.grpHighQuality.Location = new System.Drawing.Point(12, 276);
            this.grpHighQuality.Name = "grpHighQuality";
            this.grpHighQuality.Size = new System.Drawing.Size(344, 85);
            this.grpHighQuality.TabIndex = 8;
            this.grpHighQuality.TabStop = false;
            this.grpHighQuality.Text = "HighQuality";
            // 
            // picHighQuality
            // 
            this.picHighQuality.Location = new System.Drawing.Point(8, 16);
            this.picHighQuality.Name = "picHighQuality";
            this.picHighQuality.Size = new System.Drawing.Size(328, 64);
            this.picHighQuality.TabIndex = 0;
            this.picHighQuality.TabStop = false;
            this.picHighQuality.Paint += new System.Windows.Forms.PaintEventHandler(this.picHighQuality_Paint);
            // 
            // grpAntiAlias
            // 
            this.grpAntiAlias.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                       this.picAntialias});
            this.grpAntiAlias.FlatStyle = System.Windows.Forms.FlatStyle.System;
            this.grpAntiAlias.Location = new System.Drawing.Point(12, 188);
            this.grpAntiAlias.Name = "grpAntiAlias";
            this.grpAntiAlias.Size = new System.Drawing.Size(344, 85);
            this.grpAntiAlias.TabIndex = 7;
            this.grpAntiAlias.TabStop = false;
            this.grpAntiAlias.Text = "AntiAlias";
            // 
            // picAntialias
            // 
            this.picAntialias.Location = new System.Drawing.Point(8, 16);
            this.picAntialias.Name = "picAntialias";
            this.picAntialias.Size = new System.Drawing.Size(328, 64);
            this.picAntialias.TabIndex = 0;
            this.picAntialias.TabStop = false;
            this.picAntialias.Paint += new System.Windows.Forms.PaintEventHandler(this.picAntialias_Paint);
            // 
            // grpHighSpeed
            // 
            this.grpHighSpeed.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                       this.picHighSpeed});
            this.grpHighSpeed.FlatStyle = System.Windows.Forms.FlatStyle.System;
            this.grpHighSpeed.Location = new System.Drawing.Point(12, 100);
            this.grpHighSpeed.Name = "grpHighSpeed";
            this.grpHighSpeed.Size = new System.Drawing.Size(344, 85);
            this.grpHighSpeed.TabIndex = 6;
            this.grpHighSpeed.TabStop = false;
            this.grpHighSpeed.Text = "HighSpeed";
            // 
            // picHighSpeed
            // 
            this.picHighSpeed.Location = new System.Drawing.Point(8, 16);
            this.picHighSpeed.Name = "picHighSpeed";
            this.picHighSpeed.Size = new System.Drawing.Size(328, 64);
            this.picHighSpeed.TabIndex = 0;
            this.picHighSpeed.TabStop = false;
            this.picHighSpeed.Paint += new System.Windows.Forms.PaintEventHandler(this.picHighSpeed_Paint);
            // 
            // grpNone
            // 
            this.grpNone.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                  this.picNone});
            this.grpNone.FlatStyle = System.Windows.Forms.FlatStyle.System;
            this.grpNone.Location = new System.Drawing.Point(12, 12);
            this.grpNone.Name = "grpNone";
            this.grpNone.Size = new System.Drawing.Size(344, 85);
            this.grpNone.TabIndex = 5;
            this.grpNone.TabStop = false;
            this.grpNone.Text = "None";
            // 
            // 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.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
            this.ClientSize = new System.Drawing.Size(372, 374);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.grpHighQuality,
                                                                          this.grpAntiAlias,
                                                                          this.grpHighSpeed,
                                                                          this.grpNone});
            this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
            this.Name = "Smoothing";
            this.Text = "Smoothing";
            this.grpHighQuality.ResumeLayout(false);
            this.grpAntiAlias.ResumeLayout(false);
            this.grpHighSpeed.ResumeLayout(false);
            this.grpNone.ResumeLayout(false);
            this.ResumeLayout(false);
        }
        #endregion
        private void picNone_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            DrawEllipse(e.Graphics);
        }
        private void picHighSpeed_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            e.Graphics.SmoothingMode = SmoothingMode.HighSpeed;
            DrawEllipse(e.Graphics);
        }
        private void picAntialias_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
            DrawEllipse(e.Graphics);
        }
        private void picHighQuality_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            e.Graphics.SmoothingMode = SmoothingMode.HighQuality;
            DrawEllipse(e.Graphics);
        }
        private void DrawEllipse(Graphics g)
        {
            Pen drawingPen = new Pen(Color.Red, 5);
            g.DrawEllipse(drawingPen, 10, 10, 300, 40);
        }
        [STAThread]
        static void Main() 
        {
            Application.Run(new Smoothing());
        }
    }
}