Fastest method for pixel plot in windows form application using c sharp sample example

In my previous articles I have shown you how to draw a pixel in picture Box. In that method we have drawn pixel directly in control of picture Box so it was slow method. Here I am presenting the fastest method to draw a pixel. For this technique we first draw a pixel or bitmap in memory then only we load it in out picture Box.
Now lets start a project
1. Create a windows form application in c sharp and give project name fastPixelPlot or your choice.
2. Set the the form properties WindowState to maximized from properties window
3.Add pictureBox on a form from toolbox
4.Set pictureBox properties Dock to fill from properties window
I assume your form name is Form1 and pictureBox name is pictureBox1

Download complete application from GitHub.


Open the Form1.cs file add a code which is shown as below:
Form1.cs

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace fastPixelPlot

{

    public partial class Form1 : Form

    {

        private Bitmap m_Canvas;

        public Form1()

        {

            InitializeComponent();

        }

        // Call this somewhere

        public void DrawSquare()

        {

            m_Canvas = new Bitmap(700, 700); // Doesn't have to be initialized here

            for (int x = 100; x < 200; x++)

            {

                for (int y = 100; y < 200; y++)

                {

                    m_Canvas.SetPixel(x, y, Color.Blue);

                }

            }

            SetCanvasAsImage();

        }

        public void SetCanvasAsImage()

        {

            pictureBox1.Image = m_Canvas;

        }

        protected override void OnPaint(PaintEventArgs e)

        {

            DrawSquare();

        }

    }

}

Form1.Designer.cs

namespace fastPixelPlot

{

    partial class Form1

    {

        /// <summary>

        /// Required designer variable.

        /// </summary>

        private System.ComponentModel.IContainer components = null;

        /// <summary>

        /// Clean up any resources being used.

        /// </summary>

        /// <param name="disposing">true if managed resources should be disposed;

        /// otherwise, false.</param>

        protected override void Dispose(bool disposing)

        {

            if (disposing && (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.pictureBox1 = new System.Windows.Forms.PictureBox();

            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();

            this.SuspendLayout();

            // 

            // pictureBox1

            // 

            this.pictureBox1.Dock = System.Windows.Forms.DockStyle.Fill;

            this.pictureBox1.Location = new System.Drawing.Point(0, 0);

            this.pictureBox1.Name = "pictureBox1";

            this.pictureBox1.Size = new System.Drawing.Size(820, 483);

            this.pictureBox1.TabIndex = 0;

            this.pictureBox1.TabStop = false;

            //this.pictureBox1.Click += new System.EventHandler(this.pictureBox1_Click);

            // 

            // Form1

            // 

            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);

            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

            this.ClientSize = new System.Drawing.Size(820, 483);

            this.Controls.Add(this.pictureBox1);

            this.Name = "Form1";

            this.Text = "Form1";

            this.WindowState = System.Windows.Forms.FormWindowState.Maximized;

            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();

            this.ResumeLayout(false);

        }

        #endregion

        private System.Windows.Forms.PictureBox pictureBox1;

    }

}

Program.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Windows.Forms;

namespace fastPixelPlot

{

    static class Program

    {

        /// <summary>

        /// The main entry point for the application.

        /// </summary>

        [STAThread]

        static void Main()

        {

            Application.EnableVisualStyles();

            Application.SetCompatibleTextRenderingDefault(false);

            Application.Run(new Form1());

        }

    }

}