Software Development

software development notes, main category for Cs, Java, and other programming experiences.

Self Placing Window (save form window related information to Registry)

Posted on by coder 
   
 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Microsoft.Win32;

    public class Form1 : Form
    {
        private System.Windows.Forms.ListBox listBoxMessages;
        private System.Windows.Forms.Button buttonChooseColor;
        private ColorDialog chooseColorDialog = new ColorDialog();

        public Form1()
        {
            this.listBoxMessages = new System.Windows.Forms.ListBox();
            this.buttonChooseColor = new System.Windows.Forms.Button();
            this.SuspendLayout();

            this.listBoxMessages.Size = new System.Drawing.Size(288, 199);

            this.buttonChooseColor.Location = new System.Drawing.Point(0, 208);
            this.buttonChooseColor.Size = new System.Drawing.Size(104, 23);
            this.buttonChooseColor.Text = "Choose Color";

            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(292, 232);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                      this.buttonChooseColor,
                                      this.listBoxMessages});
            this.ResumeLayout(false);

            buttonChooseColor.Click += new EventHandler(OnClickChooseColor);

            try
            {
                if (ReadSettings() == false)
                    listBoxMessages.Items.Add("No information in registry");
                else
                    listBoxMessages.Items.Add("Information read in from registry");
                StartPosition = FormStartPosition.Manual;
            }
            catch (Exception e)
            {
                listBoxMessages.Items.Add("A problem occurred reading in data from registry:");
                listBoxMessages.Items.Add(e.Message);
            }
        }

        void OnClickChooseColor(object Sender, EventArgs e)
        {
            if (chooseColorDialog.ShowDialog() == DialogResult.OK)
                BackColor = chooseColorDialog.Color;
        }

        void SaveSettings()
        {
            RegistryKey softwareKey = Registry.LocalMachine.OpenSubKey("Software", true);
            RegistryKey wroxKey = softwareKey.CreateSubKey("JJJ");
            RegistryKey selfPlacingWindowKey = wroxKey.CreateSubKey("SelfPlacingWindow");
            selfPlacingWindowKey.SetValue("BackColor", (object)BackColor.ToKnownColor());
            selfPlacingWindowKey.SetValue("Red", (object)(int)BackColor.R);
            selfPlacingWindowKey.SetValue("Green", (object)(int)BackColor.G);
            selfPlacingWindowKey.SetValue("Blue", (object)(int)BackColor.B);
            selfPlacingWindowKey.SetValue("Width", (object)Width);
            selfPlacingWindowKey.SetValue("Height", (object)Height);
            selfPlacingWindowKey.SetValue("X", (object)DesktopLocation.X);
            selfPlacingWindowKey.SetValue("Y", (object)DesktopLocation.Y);
            selfPlacingWindowKey.SetValue("WindowState", (object)WindowState.ToString());
        }

        bool ReadSettings()
        {
            RegistryKey softwareKey = Registry.LocalMachine.OpenSubKey("Software");
            RegistryKey wroxKey = softwareKey.OpenSubKey("JJJ");
            if (wroxKey == null)
                return false;
            RegistryKey selfPlacingWindowKey =
                wroxKey.OpenSubKey("SelfPlacingWindow");
            if (selfPlacingWindowKey == null)
                return false;
            else
                listBoxMessages.Items.Add("Successfully opened key " + selfPlacingWindowKey.ToString());
            int redComponent = (int)selfPlacingWindowKey.GetValue("Red");
            int greenComponent = (int)selfPlacingWindowKey.GetValue("Green");
            int blueComponent = (int)selfPlacingWindowKey.GetValue("Blue");
            this.BackColor = Color.FromArgb(redComponent, greenComponent, blueComponent);
            listBoxMessages.Items.Add("Background color: " + BackColor.Name);
            int X = (int)selfPlacingWindowKey.GetValue("X");
            int Y = (int)selfPlacingWindowKey.GetValue("Y");
            this.DesktopLocation = new Point(X, Y);
            listBoxMessages.Items.Add("Desktop location: " + DesktopLocation.ToString());
            this.Height = (int)selfPlacingWindowKey.GetValue("Height");
            this.Width = (int)selfPlacingWindowKey.GetValue("Width");
            listBoxMessages.Items.Add("Size: " + new Size(Width, Height).ToString());
            string initialWindowState = (string)selfPlacingWindowKey.GetValue("WindowState");
            listBoxMessages.Items.Add("Window State: " + initialWindowState);
            this.WindowState = (FormWindowState)FormWindowState.Parse
                (WindowState.GetType(), initialWindowState);
            return true;
        }

        [STAThread]
        static void Main()
        {
            Application.Run(new Form1());
        }
    }

AutoScrollPosition

Posted on by coder

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;

public class Form1 : Form {
private Rectangle rectangleBounds = new Rectangle(new Point(0, 0), new Size(200, 200));
private Rectangle ellipseBounds = new Rectangle(new Point(50, 200), new Size(200, 150));
private Pen bluePen = new Pen(Color.Blue, 3);
private Pen redPen = new Pen(Color.Red, 2);
private Brush solidAzureBrush = Brushes.Azure;
private Brush solidYellowBrush = new SolidBrush(Color.Yellow);
static private Brush brickBrush = new HatchBrush(HatchStyle.DiagonalBrick,Color.DarkGoldenrod, Color.Cyan);
private Pen brickWidePen = new Pen(brickBrush, 10);

public Form1() {
}

protected override void OnPaint(PaintEventArgs e) {
base.OnPaint(e);
Graphics dc = e.Graphics;
Point scrollOffset = this.AutoScrollPosition;
dc.TranslateTransform(scrollOffset.X, scrollOffset.Y);
if (e.ClipRectangle.Top + scrollOffset.X < 350 || e.ClipRectangle.Left + scrollOffset.Y < 250) { dc.DrawRectangle(bluePen, rectangleBounds); dc.FillRectangle(solidYellowBrush, rectangleBounds); dc.DrawEllipse(redPen, ellipseBounds); dc.FillEllipse(solidAzureBrush, ellipseBounds); dc.DrawLine(brickWidePen, rectangleBounds.Location,ellipseBounds.Location + ellipseBounds.Size); } } public static void Main() { Application.Run(new Form1()); } } [/csharp]

Demonstrates creating a form in a console program

Posted on by coder 


   

/*
C# Programming Tips &amp; Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/

// Form.cs -- Demonstrates creating a form in a console program
//
//            Compile this program with the following command line:
//                C:>csc Form.cs
using System;
using System.Windows.Forms;

namespace nsForm
{
    public class clsMainForm
    {
        static public void Main ()
        {
            Application.Run(new Form());
        }
    }
}

Form for data input

Posted on by coder 


   

/*
C# Programming Tips &amp; Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace Employee
{
  /// <summary>
  /// Summary description for Form1.
  /// </summary>
  public class EmployeeForm1 : System.Windows.Forms.Form
  {
    private System.Windows.Forms.ListBox listBox1;
    private System.Windows.Forms.Button button1;
    private System.Windows.Forms.Button button2;
    /// <summary>
    /// Required designer variable.
    /// </summary>
    private System.ComponentModel.Container components = null;

    public EmployeeForm1()
    {
      //
      // Required for Windows Form Designer support
      //
      InitializeComponent();

      //
      // TODO: Add any constructor code after InitializeComponent call
      //
    }

    /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    protected 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.button1 = new System.Windows.Forms.Button();
      this.button2 = new System.Windows.Forms.Button();
      this.listBox1 = new System.Windows.Forms.ListBox();
      this.SuspendLayout();
      // 
      // button1
      // 
      this.button1.Location = new System.Drawing.Point(48, 240);
      this.button1.Name = "button1";
      this.button1.Size = new System.Drawing.Size(80, 24);
      this.button1.TabIndex = 2;
      this.button1.Text = "Add Item";
      this.button1.Click += new System.EventHandler(this.button1_Click);
      // 
      // button2
      // 
      this.button2.Location = new System.Drawing.Point(160, 240);
      this.button2.Name = "button2";
      this.button2.Size = new System.Drawing.Size(96, 24);
      this.button2.TabIndex = 3;
      this.button2.Text = "Cancel";
      this.button2.Click += new System.EventHandler(this.button2_Click);
      // 
      // listBox1
      // 
      this.listBox1.Location = new System.Drawing.Point(38, 32);
      this.listBox1.Name = "listBox1";
      this.listBox1.Size = new System.Drawing.Size(216, 186);
      this.listBox1.TabIndex = 0;
      this.listBox1.DoubleClick += new System.EventHandler(this.listBox1_OnDoubleClick);
      // 
      // Form1
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(292, 273);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                      this.listBox1,
                                      this.button2,
                                      this.button1});
      this.Name = "Form1";
      this.Text = "Form1";
      this.ResumeLayout(false);

    }
    #endregion

    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main() 
    {
      Application.Run(new EmployeeForm1());
    }

    private void button1_Click(object sender, System.EventArgs e)
    {
      EMPLOYEE emp = new EMPLOYEE();
      EmpForm eform = new EmpForm (emp);
      if (eform.ShowDialog (this) == DialogResult.Cancel)
        return;
      eform.GetEmployeeData (out emp);
      listBox1.Items.Add (emp);
    }

    private void button2_Click(object sender, System.EventArgs e)
    {
      Application.Exit ();
    }

    private void listBox1_OnDoubleClick(object sender, System.EventArgs e)
    {
      int index = listBox1.SelectedIndex;
      if (index < 0)
        return;
      EMPLOYEE emp = (EMPLOYEE) listBox1.Items&#91;index&#93;;
      EmpForm eform = new EmpForm (emp);
      if (eform.ShowDialog (this) == DialogResult.Cancel)
        return;
      eform.GetEmployeeData (out emp);
      listBox1.Items.RemoveAt (index);
      listBox1.Items.Insert (index,emp);
    }
  }
  public struct EMPLOYEE
  {
    public string  FirstName;
    public string  LastName;
    public string  Address;
    public string  City;
    public string  State;
    public string  Zip;
    public override string ToString ()
    {
      return (LastName + ", " + FirstName);
    }
  }
  /// <summary>
  /// Summary description for EmpForm.
  /// </summary>
  public class EmpForm : System.Windows.Forms.Form
  {
    private System.Windows.Forms.TextBox textBox1;
    private System.Windows.Forms.TextBox textBox2;
    private System.Windows.Forms.TextBox textBox3;
    private System.Windows.Forms.TextBox textBox4;
    private System.Windows.Forms.TextBox textBox5;
    private System.Windows.Forms.TextBox textBox6;
    private System.Windows.Forms.Label label1;
    private System.Windows.Forms.Label label2;
    private System.Windows.Forms.Label label3;
    private System.Windows.Forms.Label label4;
    private System.Windows.Forms.Label label5;
    private System.Windows.Forms.Label label6;
    private System.Windows.Forms.Button button1;
    private System.Windows.Forms.Button button2;
    /// <summary>
    /// Required designer variable.
    /// </summary>
    private System.ComponentModel.Container components = null;

    public EmpForm(EMPLOYEE emp)
    {
      //
      // Required for Windows Form Designer support
      //
      InitializeComponent();

      //
      // TODO: Add any constructor code after InitializeComponent call
      //
      textBox1.Text = emp.FirstName;
      textBox2.Text = emp.LastName;
      textBox3.Text = emp.Address;
      textBox4.Text = emp.City;
      textBox5.Text = emp.State;
      textBox6.Text = emp.Zip;
    }

    /// <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.textBox4 = new System.Windows.Forms.TextBox();
      this.label1 = new System.Windows.Forms.Label();
      this.label2 = new System.Windows.Forms.Label();
      this.label3 = new System.Windows.Forms.Label();
      this.textBox5 = new System.Windows.Forms.TextBox();
      this.button1 = new System.Windows.Forms.Button();
      this.button2 = new System.Windows.Forms.Button();
      this.label5 = new System.Windows.Forms.Label();
      this.label6 = new System.Windows.Forms.Label();
      this.textBox2 = new System.Windows.Forms.TextBox();
      this.textBox3 = new System.Windows.Forms.TextBox();
      this.label4 = new System.Windows.Forms.Label();
      this.textBox1 = new System.Windows.Forms.TextBox();
      this.textBox6 = new System.Windows.Forms.TextBox();
      this.SuspendLayout();
      // 
      // textBox4
      // 
      this.textBox4.Location = new System.Drawing.Point(16, 182);
      this.textBox4.Name = "textBox4";
      this.textBox4.Size = new System.Drawing.Size(120, 20);
      this.textBox4.TabIndex = 3;
      this.textBox4.Text = "";
      // 
      // label1
      // 
      this.label1.Location = new System.Drawing.Point(16, 16);
      this.label1.Name = "label1";
      this.label1.Size = new System.Drawing.Size(136, 16);
      this.label1.TabIndex = 8;
      this.label1.Text = "First Name";
      // 
      // label2
      // 
      this.label2.Location = new System.Drawing.Point(16, 64);
      this.label2.Name = "label2";
      this.label2.Size = new System.Drawing.Size(128, 16);
      this.label2.TabIndex = 9;
      this.label2.Text = "Last Name";
      // 
      // label3
      // 
      this.label3.Location = new System.Drawing.Point(16, 109);
      this.label3.Name = "label3";
      this.label3.Size = new System.Drawing.Size(120, 19);
      this.label3.TabIndex = 10;
      this.label3.Text = "Address";
      // 
      // textBox5
      // 
      this.textBox5.Location = new System.Drawing.Point(168, 184);
      this.textBox5.Name = "textBox5";
      this.textBox5.Size = new System.Drawing.Size(32, 20);
      this.textBox5.TabIndex = 4;
      this.textBox5.Text = "";
      // 
      // button1
      // 
      this.button1.DialogResult = System.Windows.Forms.DialogResult.OK;
      this.button1.Location = new System.Drawing.Point(48, 224);
      this.button1.Name = "button1";
      this.button1.TabIndex = 6;
      this.button1.Text = "OK";
      this.button1.Click += new System.EventHandler(this.button1_Click);
      // 
      // button2
      // 
      this.button2.CausesValidation = false;
      this.button2.DialogResult = System.Windows.Forms.DialogResult.Cancel;
      this.button2.Location = new System.Drawing.Point(160, 224);
      this.button2.Name = "button2";
      this.button2.TabIndex = 7;
      this.button2.Text = "Cancel";
      // 
      // label5
      // 
      this.label5.Location = new System.Drawing.Point(168, 163);
      this.label5.Name = "label5";
      this.label5.Size = new System.Drawing.Size(40, 16);
      this.label5.TabIndex = 12;
      this.label5.Text = "State";
      // 
      // label6
      // 
      this.label6.Location = new System.Drawing.Point(224, 163);
      this.label6.Name = "label6";
      this.label6.Size = new System.Drawing.Size(48, 16);
      this.label6.TabIndex = 13;
      this.label6.Text = "Zip";
      // 
      // textBox2
      // 
      this.textBox2.Location = new System.Drawing.Point(16, 82);
      this.textBox2.Name = "textBox2";
      this.textBox2.Size = new System.Drawing.Size(208, 20);
      this.textBox2.TabIndex = 1;
      this.textBox2.Text = "";
      // 
      // textBox3
      // 
      this.textBox3.Location = new System.Drawing.Point(16, 132);
      this.textBox3.Name = "textBox3";
      this.textBox3.Size = new System.Drawing.Size(208, 20);
      this.textBox3.TabIndex = 2;
      this.textBox3.Text = "";
      // 
      // label4
      // 
      this.label4.Location = new System.Drawing.Point(16, 163);
      this.label4.Name = "label4";
      this.label4.Size = new System.Drawing.Size(120, 16);
      this.label4.TabIndex = 11;
      this.label4.Text = "City";
      // 
      // textBox1
      // 
      this.textBox1.Location = new System.Drawing.Point(16, 32);
      this.textBox1.Name = "textBox1";
      this.textBox1.Size = new System.Drawing.Size(160, 20);
      this.textBox1.TabIndex = 0;
      this.textBox1.Text = "";
      // 
      // textBox6
      // 
      this.textBox6.Location = new System.Drawing.Point(224, 184);
      this.textBox6.Name = "textBox6";
      this.textBox6.Size = new System.Drawing.Size(48, 20);
      this.textBox6.TabIndex = 5;
      this.textBox6.Text = "";
      // 
      // EmpForm
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.CancelButton = this.button2;
      this.ClientSize = new System.Drawing.Size(292, 273);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                      this.button2,
                                      this.button1,
                                      this.label6,
                                      this.label5,
                                      this.label4,
                                      this.label3,
                                      this.label2,
                                      this.label1,
                                      this.textBox6,
                                      this.textBox5,
                                      this.textBox4,
                                      this.textBox3,
                                      this.textBox2,
                                      this.textBox1});
      this.MinimizeBox = false;
      this.Name = "EmpForm";
      this.ShowInTaskbar = false;
      this.Text = "EmpForm";
      this.ResumeLayout(false);

    }
    #endregion

    public void GetEmployeeData (out EMPLOYEE emp)
    {
      emp.FirstName = textBox1.Text;
      emp.LastName = textBox2.Text;
      emp.Address = textBox3.Text;
      emp.City = textBox4.Text;
      emp.State = textBox5.Text;
      emp.Zip = textBox6.Text;
    }

    private void button1_Click(object sender, System.EventArgs e)
    {
      this.Close ();
    }
  }
  
}

Add controls to a form

Posted on by coder

/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace AddControls
{
///

/// Summary description for AddControls.
///

public class AddControls : System.Windows.Forms.Form
{
private System.Windows.Forms.ListBox listBox1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button2;
///

/// Required designer variable.
///

private System.ComponentModel.Container components = null;

public AddControls()
{
//
// 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.button2 = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.button1 = new System.Windows.Forms.Button();
this.listBox1 = new System.Windows.Forms.ListBox();
this.SuspendLayout();
//
// button2
//
this.button2.Location = new System.Drawing.Point(160, 240);
this.button2.Name = “button2”;
this.button2.Size = new System.Drawing.Size(96, 24);
this.button2.TabIndex = 3;
this.button2.Text = “Cancel”;
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(38, 200);
this.textBox1.Name = “textBox1”;
this.textBox1.Size = new System.Drawing.Size(216, 20);
this.textBox1.TabIndex = 1;
this.textBox1.Text = “”;
//
// button1
//
this.button1.Location = new System.Drawing.Point(48, 240);
this.button1.Name = “button1”;
this.button1.Size = new System.Drawing.Size(80, 24);
this.button1.TabIndex = 2;
this.button1.Text = “Add Item”;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// listBox1
//
this.listBox1.Location = new System.Drawing.Point(38, 32);
this.listBox1.Name = “listBox1”;
this.listBox1.Size = new System.Drawing.Size(216, 147);
this.listBox1.TabIndex = 0;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 273);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.button2,
this.button1,
this.textBox1,
this.listBox1});
this.Name = “AddControls”;
this.Text = “AddControls”;
this.ResumeLayout(false);

}
#endregion

///

/// The main entry point for the application.
///

[STAThread]
static void Main()
{
Application.Run(new AddControls());
}

private void button1_Click(object sender, System.EventArgs e)
{
if (textBox1.Text == “”)
return;
string strAdd = textBox1.Text;
if (listBox1.FindString (strAdd, -1) < 0) { listBox1.Items.Add (strAdd); textBox1.Text = ""; textBox1.Focus (); return; } MessageBox.Show (""" + strAdd + "" is already in the list box", "Duplicate"); } private void button2_Click(object sender, System.EventArgs e) { Application.Exit(); } } } [/csharp]

Simple form

Posted on by coder 


   

/*
C# Programming Tips &amp; Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace FormSample
{
  /// <summary>
  /// Summary description for Form1.
  /// </summary>
  public class FormSample : System.Windows.Forms.Form
  {
    /// <summary>
    /// Required designer variable.
    /// </summary>
    private System.ComponentModel.Container components = null;

    public FormSample()
    {
      //
      // 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()
    {
      // 
      // FormSample
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(292, 273);
      this.Name = "Form1";
      this.Text = "Form1";

    }
    #endregion

    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main() 
    {
      Application.Run(new FormSample());
    }
  }
}

A form-based Windows Skeleton

Posted on by coder 


   

// A form-based Windows Skeleton. 
 
using System; 
using System.Windows.Forms; 
 
// WinSkel is derived from Form. 
public class WinSkel : Form { 
 
  public WinSkel() { 
    // Give the window a name. 
    Text = "A Windows Skeleton"; 
  }   
 
  // Main is used only to start the application. 
  [STAThread] 
  public static void Main() { 
    WinSkel skel = new WinSkel(); // create a form 
 
    // Start the window running. 
    Application.Run(skel); 
  } 
}