Shape Without Form

using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

//using System.Data;

//using System.IO;

using System.Drawing.Drawing2D;

namespace GDISample

{

    /// 

    /// Summary description for Form1.

    /// 

    public class Form1 : System.Windows.Forms.Form

    {

        private System.Windows.Forms.ComboBox comboBox1;

        private System.Windows.Forms.TextBox textBox2;

        private System.Windows.Forms.ListBox listBox1;

        private System.Windows.Forms.CheckBox checkBox1;

        /// 

        /// Required designer variable.

        /// 

        private System.ComponentModel.Container components = null;

        public Form1()

        {

            //

            // Required for Windows Form Designer support

            //

            InitializeComponent();

            //

            // TODO: Add any constructor code after InitializeComponent call

            //

        }

        /// 

        /// Clean up any resources being used.

        /// 

        protected override void Dispose( bool disposing )

        {

            if( disposing )

            {

                if (components != null) 

                {

                    components.Dispose();

                }

            }

            base.Dispose( disposing );

        }

        #region Windows Form Designer generated code

        /// 

        /// Required method for Designer support - do not modify

        /// the contents of this method with the code editor.

        /// 

        private void InitializeComponent()

        {

            this.textBox2 = new System.Windows.Forms.TextBox();

            this.comboBox1 = new System.Windows.Forms.ComboBox();

            this.listBox1 = new System.Windows.Forms.ListBox();

            this.checkBox1 = new System.Windows.Forms.CheckBox();

            this.SuspendLayout();

            // 

            // textBox2

            // 

            this.textBox2.Location = new System.Drawing.Point(16, 32);

            this.textBox2.Multiline = true;

            this.textBox2.Name = "textBox2";

            this.textBox2.Size = new System.Drawing.Size(144, 64);

            this.textBox2.TabIndex = 4;

            this.textBox2.Text = "textBox2";

            this.textBox2.Leave += new System.EventHandler(this.refreshForm);

            this.textBox2.Enter += new System.EventHandler(this.getPainted);

            // 

            // comboBox1

            // 

            this.comboBox1.DropDownWidth = 136;

            this.comboBox1.Location = new System.Drawing.Point(176, 32);

            this.comboBox1.Name = "comboBox1";

            this.comboBox1.Size = new System.Drawing.Size(112, 21);

            this.comboBox1.TabIndex = 3;

            this.comboBox1.Text = "comboBox1";

            this.comboBox1.Leave += new System.EventHandler(this.refreshForm);

            this.comboBox1.Enter += new System.EventHandler(this.getPainted);

            // 

            // listBox1

            // 

            this.listBox1.Location = new System.Drawing.Point(16, 112);

            this.listBox1.Name = "listBox1";

            this.listBox1.Size = new System.Drawing.Size(144, 95);

            this.listBox1.TabIndex = 5;

            this.listBox1.Leave += new System.EventHandler(this.refreshForm);

            this.listBox1.Enter += new System.EventHandler(this.getPainted);

            // 

            // checkBox1

            // 

            this.checkBox1.Location = new System.Drawing.Point(184, 72);

            this.checkBox1.Name = "checkBox1";

            this.checkBox1.Size = new System.Drawing.Size(104, 32);

            this.checkBox1.TabIndex = 6;

            this.checkBox1.Text = "checkBox1";

            this.checkBox1.Enter += new System.EventHandler(this.getPainted);

            this.checkBox1.Leave += new System.EventHandler(this.refreshForm);

            // 

            // Form1

            // 

            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);

            this.ClientSize = new System.Drawing.Size(744, 557);

            this.Controls.AddRange(new System.Windows.Forms.Control[] {

                                                                          this.checkBox1,

                                                                          this.listBox1,

                                                                          this.textBox2,

                                                                          this.comboBox1});

            this.Name = "Form1";

            this.Text = "Form1";

            this.Enter += new System.EventHandler(this.getPainted);

            this.ResumeLayout(false);

        }

        #endregion

        /// 

        /// The main entry point for the application.

        /// 

        [STAThread]

        static void Main() 

        {

            Application.Run(new Form1());

        }

        private void PaintMe( Control controlToPaint)

        {

            //Create A Graphics obj

             Graphics g = CreateGraphics(); 

            //Create a Pen obj set color to RED and Size to 5

            Pen pen = new Pen(Color.Yellow,5);

// This pen will be used to add a border around our other so it will stand out more.

            Pen pen2 = new Pen(Color.Black,7);            

            //Get the controls Coordinants

            int p1 = controlToPaint.Left;

            int p2 = controlToPaint.Top;

            int p3 = controlToPaint.Width;

            int p4 = controlToPaint.Height;

/*The DrawRectangle Method requires a Pen,The X-Coordinate of Top Left,The Y-Coordinate of upper left

  The Width, The Height)*/

            g.DrawRectangle(pen2,p1,p2,p3,p4); //Draw the Border first or it will cover the yellow

            g.DrawRectangle(pen,p1,p2,p3,p4); // Draw the yellow Box

        }        

        private void getPainted(object sender,System.EventArgs e)

        {

                PaintMe((Control)sender);//Cast the object to a Control

        }

        private void refreshForm(object sender,System.EventArgs e)

        {

                 Form1.ActiveForm.Refresh() ; //Repaint the form and erase our drawings

        }

        } 

    }