Drawing (C#.NET)

Long time ago I shared this with my google group… just for a fun.
To make this take a windows application form.There will be a windows form named Form1.cs.
and  Form1.Designer.cs with Form1.cs.
Open Form1.Designer.cs  and expand Windows Form Designer generated code with (+) sign.
After expanding it looks like this:

        #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.SuspendLayout();

            //

            // Form1

            //

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

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

            this.ClientSize = new System.Drawing.Size(379, 312);

            this.Name = "Form1";

            this.Text = "Form1";

            this.ResumeLayout(false);

            //Add this three lines

            this.MouseUp += new System.Windows.Forms.MouseEventHandler

(this.form1_MouseUp);

            this.MouseDown += new

System.Windows.Forms.MouseEventHandler(this.form1_MouseDown);

            this.MouseMove += new

System.Windows.Forms.MouseEventHandler(this.form1_MouseMove);

            //End

        }

        #endregion


Add this three lines to InitializeComponent.

            this.MouseUp += new System.Windows.Forms.MouseEventHandler

(this.form1_MouseUp);

            this.MouseDown += new

System.Windows.Forms.MouseEventHandler(this.form1_MouseDown);

            this.MouseMove += new

System.Windows.Forms.MouseEventHandler(this.form1_MouseMove);

Then open Form1.cs file and Type these lines.

        private bool shouldPoint = false;

        public Form1()

        {

            InitializeComponent();

            this.MouseUp += new System.Windows.Forms.MouseEventHandler

(this.form1_MouseUp);

            this.MouseDown += new

System.Windows.Forms.MouseEventHandler(this.form1_MouseDown);

            this.MouseMove += new

System.Windows.Forms.MouseEventHandler(this.form1_MouseMove);

        }

        private void form1_MouseDown(object sender, MouseEventArgs e)

        {

            shouldPoint = true;

        }

        private void form1_MouseUp(object sender, MouseEventArgs e)

        {

            shouldPoint = false;

        }

        private void form1_MouseMove(object sender, MouseEventArgs e)

        {

            if (shouldPoint)

            {

                Graphics graphics = CreateGraphics();

                graphics.FillEllipse(new SolidBrush(Color.Red),

e.X, e.Y, 6, 6);

                graphics.Dispose();

            }

        }

Now run the application.Move the cursor and press the left buttom….YOU CAN DRAW!!