// This Article is a simple one to show the usage of KeyEvent and MouseEvent. 
  
// Please move the mouse or press a key to Exit this Program. 
using System; 
using System.Drawing; 
using System.Collections; 
using System.ComponentModel; 
using System.Windows.Forms; 
using System.Data; 

namespace ScreenSave 
{ 
    public class KeyEventandMouseEvent : System.Windows.Forms.Form { 
        private System.Windows.Forms.Label label1; 
        private System.Windows.Forms.Timer timer1; 
        private System.ComponentModel.IContainer components; 
        private Boolean boolFlag; 
        private int ixStart; 
        private int iyStart; 
    
        public KeyEventandMouseEvent() { 
            // 
            // Required for Windows Form Designer support 
            // 
            InitializeComponent(); 
        } 
        /// <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.components = new System.ComponentModel.Container(); 
            this.timer1 = new System.Windows.Forms.Timer(this.components); 
            this.label1 = new System.Windows.Forms.Label(); 
            this.SuspendLayout(); 
            // 
            // timer1 
            // 
            this.timer1.Enabled = true; 
            this.timer1.Tick += new System.EventHandler(this.timer1_Tick); 
            // 
            // label1 
            // 
            this.label1.Font = new System.Drawing.Font("Times New Roman", 14F, (System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic), System.Drawing.GraphicsUnit.Point, ((System.Byte)(0))); 
            this.label1.ForeColor = System.Drawing.Color.Lime; 
            this.label1.Location = new System.Drawing.Point(8, 280); 
            this.label1.Name = "label1"; 
            this.label1.Size = new System.Drawing.Size(312, 32); 
            this.label1.TabIndex = 0; 
            this.label1.Text = "Roller - Developed in C-Sharp"; 
            this.label1.Click += new System.EventHandler(this.label1_Click); 
            // 
            // KeyEventandMouseEvent 
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); 
            this.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(64)), ((System.Byte)(64)), ((System.Byte)(64))); 
            this.ClientSize = new System.Drawing.Size(568, 32); 
            this.Controls.AddRange(new System.Windows.Forms.Control[] { 
            this.label1}); 
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; 
            this.KeyPreview = true; 
            this.Name = "KeyEventandMouseEvent"; 
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; 
            this.Text = "KeyEventandMouseEvent"; 
            this.WindowState = System.Windows.Forms.FormWindowState.Maximized; 
            this.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.OnKeyPressEvent); 
            this.Load += new System.EventHandler(this.KeyEventandMouseEvent_Load); 
            this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.OnMouseMoveEvent); 
            this.ResumeLayout(false); 
        } 
        #endregion 
        /// <summary> 
        /// The main entry point for the application. 
        /// </summary> 
        [STAThread] 
        static void Main() 
        { 
            Application.Run(new KeyEventandMouseEvent()); 
        } 
        private void timer1_Tick(object sender, System.EventArgs e) 
        { 
            int i; 
              
            i = label1.Location.X; 
            if (i >= 750) 
            i = 0; 
            else 
            i = label1.Location.X + 5; 
              
            label1.Location = new Point(i,280); 
        } 
        private void KeyEventandMouseEvent_Load(object sender, System.EventArgs e) 
        { 
          
        } 
        private void OnMouseMoveEvent(object sender,MouseEventArgs e) 
        { 
            //Application.Exit(); 
            if (ixStart == 0 &amp;&amp; iyStart == 0) 
            { 
                ixStart = e.X; 
                iyStart = e.Y; 
            } 
            else if (e.X != ixStart || e.Y != iyStart) 
                Application.Exit(); 
              
        } 
        private void OnKeyPressEvent(object sender, System.Windows.Forms.KeyPressEventArgs e) 
        { 
            Application.Exit(); 
        } 
        private void label1_Click(object sender, System.EventArgs e) 
        { 
        } 
    } 
} 
 



           
          

   


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

public class Form1 : System.Windows.Forms.Form {
    private System.Windows.Forms.GroupBox groupBox1;
    private System.Windows.Forms.CheckBox checkBox1;
    private System.Windows.Forms.CheckBox checkBox2;
    private System.Windows.Forms.CheckBox checkBox3;
    private System.Windows.Forms.RadioButton radioButton1;
    private System.Windows.Forms.RadioButton radioButton2;
    private System.Windows.Forms.RadioButton radioButton3;
    private System.Windows.Forms.Button button1;

    private System.ComponentModel.Container components = null;

    public Form1() {
      InitializeComponent();
    }

    private void InitializeComponent() {
            this.groupBox1 = new System.Windows.Forms.GroupBox();
            this.checkBox1 = new System.Windows.Forms.CheckBox();
            this.checkBox2 = new System.Windows.Forms.CheckBox();
            this.checkBox3 = new System.Windows.Forms.CheckBox();
            this.radioButton1 = new System.Windows.Forms.RadioButton();
            this.radioButton2 = new System.Windows.Forms.RadioButton();
            this.radioButton3 = new System.Windows.Forms.RadioButton();
            this.button1 = new System.Windows.Forms.Button();
            this.groupBox1.SuspendLayout();
            this.SuspendLayout();
            // 
            // groupBox1
            // 
            this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                                    this.radioButton1,
                                                                                    this.radioButton2,
                                                                                    this.radioButton3});
            this.groupBox1.Location = new System.Drawing.Point(8, 120);
            this.groupBox1.Name = "groupBox1";
            this.groupBox1.Size = new System.Drawing.Size(120, 144);
            this.groupBox1.TabIndex = 0;
            this.groupBox1.TabStop = false;
            this.groupBox1.Text = "Color";
            this.groupBox1.Enter += new System.EventHandler(this.groupBox1_Enter);
            // 
            // checkBox1
            // 
            this.checkBox1.Location = new System.Drawing.Point(8, 8);
            this.checkBox1.Name = "checkBox1";
            this.checkBox1.TabIndex = 1;
            this.checkBox1.Text = "Circle";
            // 
            // checkBox2
            // 
            this.checkBox2.Location = new System.Drawing.Point(8, 40);
            this.checkBox2.Name = "checkBox2";
            this.checkBox2.TabIndex = 2;
            this.checkBox2.Text = "Rectangle";
            // 
            // checkBox3
            // 
            this.checkBox3.Location = new System.Drawing.Point(8, 72);
            this.checkBox3.Name = "checkBox3";
            this.checkBox3.TabIndex = 3;
            this.checkBox3.Text = "String";
            // 
            // radioButton1
            // 
            this.radioButton1.Location = new System.Drawing.Point(8, 32);
            this.radioButton1.Name = "radioButton1";
            this.radioButton1.TabIndex = 4;
            this.radioButton1.Text = "Red";
            this.radioButton1.CheckedChanged += new System.EventHandler(this.radioButton1_CheckedChanged);
            // 
            // radioButton2
            // 
            this.radioButton2.Location = new System.Drawing.Point(8, 64);
            this.radioButton2.Name = "radioButton2";
            this.radioButton2.TabIndex = 5;
            this.radioButton2.Text = "Green";
            // 
            // radioButton3
            // 
            this.radioButton3.Location = new System.Drawing.Point(8, 96);
            this.radioButton3.Name = "radioButton3";
            this.radioButton3.TabIndex = 6;
            this.radioButton3.Text = "Blue";
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(8, 280);
            this.button1.Name = "button1";
            this.button1.Size = new System.Drawing.Size(112, 32);
            this.button1.TabIndex = 4;
            this.button1.Text = "Draw";
            this.button1.Click += new System.EventHandler(this.button1_Click);
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(408, 317);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.button1,
                                                                          this.checkBox3,
                                                                          this.checkBox2,
                                                                          this.checkBox1,
                                                                          this.groupBox1});
            this.Name = "Form1";
            this.Text = "CheckBox and RadioButton Sample";
            this.groupBox1.ResumeLayout(false);
            this.ResumeLayout(false);

        }

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

        private void groupBox1_Enter(object sender, System.EventArgs e)
        {
           Console.WriteLine("group box enter event");
        }

        private void radioButton1_CheckedChanged(object sender, System.EventArgs e)
        {
           Console.WriteLine("Radio Button checked changed event");
        }

        private void button1_Click(object sender, System.EventArgs e)
        {
            Graphics g = Graphics.FromHwnd(this.Handle);
            String str = "";
            Rectangle rc = new Rectangle(150, 50, 250, 250);
            
            if(radioButton1.Checked)
            {
                str = "red";
            }
            if(radioButton2.Checked)
            {
                str+="Green";
            }
            if(radioButton3.Checked)
            {
                str+="Blue";
            }

            if (checkBox1.Checked)
            {
                str+="Ellipse";
            }
            if (checkBox2.Checked)
            {
                str += "Rectangle";
            }
            if (checkBox3.Checked)
            {
                g.FillRectangle(new SolidBrush(Color.White), rc);
                g.DrawString(str, new Font("Verdana", 12), new SolidBrush(Color.Black), rc);
            }
            

        }
    }


           
          

   

using System;
using System.Windows.Forms;
using System.Drawing;

public class PushMe2 : Form {

  Button pushMeButton;

  public PushMe2() {
    pushMeButton = new Button(); 
    pushMeButton.Text = "Push Me";
    pushMeButton.Height = 60;
    pushMeButton.Width = 80;
    pushMeButton.Top = 60;
    pushMeButton.Left = 60;

    pushMeButton.Click += new EventHandler(ButtonClicked);

    this.Controls.Add(pushMeButton);

    this.Height = 200;
    this.Width = 200;
    this.StartPosition = FormStartPosition.CenterScreen;
    this.Visible = true;
  }

  public void ButtonClicked(object source, EventArgs e) {
    Button b = (Button)source;
    if ( b.Text == "Push Me" ) {
      b.Text = "Ouch";
    }
    else {
      b.Text = "Push Me";
    }
  }

  static void Main() {
    Application.Run(new PushMe2());
  }
}


           
          

   

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

public class Form1 : System.Windows.Forms.Form{
    private System.ComponentModel.IContainer components;

  public Form1(){
    InitializeComponent();
  }


  #region Windows Form Designer generated code
  private void InitializeComponent(){
      this.components = new System.ComponentModel.Container();
      this.timer1 = new System.Windows.Forms.Timer(this.components);

      this.timer1.Enabled = true;
      this.timer1.Tick += new System.EventHandler(this.timer1_Tick);

      this.AutoScaleBaseSize = new System.Drawing.Size(6, 15);
      this.ClientSize = new System.Drawing.Size(292, 260);
      this.Name = "Form1";
      this.Text = "LinearGradientBrush Demo";
      this.Load += new System.EventHandler(this.Form1_Load);
      this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);

    }
  #endregion

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

    private void Form1_Load(object sender, System.EventArgs e) {
      this.BackColor = Color.FromArgb(255, 0, 0, 255);  
    }

    private System.Windows.Forms.Timer timer1;

    private float angle = 0;

    private LinearGradientBrush GetBrush()
    {
      return new LinearGradientBrush(
        new Rectangle( 20, 20, 200, 100),
        Color.Orange,
        Color.Yellow,
        0.0F,
        true);
    }


    private void Rotate( Graphics graphics, LinearGradientBrush brush )
    {
      brush.RotateTransform(angle);
      brush.SetBlendTriangularShape(.5F);
      graphics.FillRectangle(brush, brush.Rectangle);
    }

    private void Rotate(Graphics graphics)
    {
      angle += 5 % 360;
      Rotate(graphics, GetBrush());
    }

    private void timer1_Tick(object sender, System.EventArgs e)
    {
      Rotate(CreateGraphics());
    }

    private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
    {
      Rotate(e.Graphics);
    }
}



           
          

   

public class MyForm : System.Windows.Forms.Form{
  public MyForm(){
    Text = "Hello World";
  }
  public static void Main() {
    System.Windows.Forms.Application.Run(new MyForm());
  }
}


           
          

   

/*
Professional Windows GUI Programming Using C#
by Jay Glynn, Csaba Torok, Richard Conway, Wahid Choudhury, 
   Zach Greenvoss, Shripad Kulkarni, Neil Whitlow

Publisher: Peer Information
ISBN: 1861007663
*/

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

namespace Wrox.ProWinProg.Chapter01.WinFormNonVS
{
   public class frmLogin : System.Windows.Forms.Form
   {
      System.Windows.Forms.TextBox txtUser;
      System.Windows.Forms.Button btnOK;
      System.Windows.Forms.Button btnCancel;

      public frmLogin()
      {
         txtUser = new System.Windows.Forms.TextBox();
         txtUser.Location = new Point(30, 15);
         txtUser.Size = new Size(250, 20);
         txtUser.Text = "";
         txtUser.Name = "txtUser";
         this.Controls.Add(txtUser);

         btnOK = new System.Windows.Forms.Button();
         btnOK.Location = new Point(40,
            (txtUser.Location.Y + txtUser.Size.Height + btnOK.Size.Height));
         btnOK.Text="OK";
         btnOK.Name="btnOK";
         this.Controls.Add(btnOK);

         btnCancel = new System.Windows.Forms.Button();
         btnCancel.Location = new Point((this.Size.Width -
                                         btnCancel.Size.Width) - 40,
            (txtUser.Location.Y + txtUser.Size.Height + btnOK.Size.Height));
         btnCancel.Text = "Cancel";
         btnCancel.Name = "btnCancel";
         this.Controls.Add(btnCancel);

         this.Size = new Size(this.Size.Width, btnCancel.Location.Y +
                              btnCancel.Size.Height + 60);

         btnCancel.Click += new System.EventHandler(btnCancelHandler);
         btnOK.Click += new System.EventHandler(btnEventHandler);
      }

      private void btnEventHandler(object sender, System.EventArgs e)
      {
         MessageBox.Show(((Button)sender).Name);
      }
   
      private void btnCancelHandler(object sender, System.EventArgs e)
      {
         MessageBox.Show("The second handler");
      }

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


WinFormVS.zip( 19 k)

/*
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.Drawing.Imaging;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace CustomWindow
{
///

public class CustomWindow : System.Windows.Forms.Form
{
#region Class Local Storage
private GraphicsPath m_WindowPath;
private GraphicsPath m_path;
private Point m_StartPoint;
private Point m_LastPoint;
private bool m_Drawing;
private Rectangle InvalidRect;
private Cursor DrawCursor;
#endregion

private System.Windows.Forms.MainMenu mainMenu1;
private System.Windows.Forms.MenuItem menuItem1;
private System.Windows.Forms.MenuItem mnuExit;
private System.Windows.Forms.MenuItem menuItem3;
private System.Windows.Forms.MenuItem menuItem4;
private System.Windows.Forms.MenuItem menuItem5;
private System.Windows.Forms.MenuItem menuItem2;
private System.Windows.Forms.MenuItem menuItem6;
private System.Windows.Forms.MenuItem menuItem7;
private System.Windows.Forms.MenuItem menuItem8;
private System.Windows.Forms.MenuItem menuItem9;
private System.Windows.Forms.TreeView PathTree;
private System.Windows.Forms.Panel P1;
private System.Windows.Forms.Splitter TreeSplitter;
private System.Windows.Forms.MenuItem menuItem10;
private System.Windows.Forms.Splitter PanelSplitter;
private System.Windows.Forms.RichTextBox DebugWindow;

///

private System.ComponentModel.Container components = null;

public CustomWindow()
{
InitializeComponent();

this.Icon = new Icon(“Icon.ico”);
DrawCursor = new Cursor(“Pen.cur”);

this.Size = new Size(800, 600);
this.SetStyle(ControlStyles.AllPaintingInWmPaint,true);
this.SetStyle(ControlStyles.DoubleBuffer,true);

// this.MouseDown += new MouseEventHandler(this.M_Down);
// this.MouseUp += new MouseEventHandler(this.M_Up);
// this.MouseMove += new MouseEventHandler(this.M_Move);

P1.Paint += new PaintEventHandler(this.PanelPaint);
P1.MouseDown += new MouseEventHandler(this.M_Down);
P1.MouseUp += new MouseEventHandler(this.M_Up);
P1.MouseMove += new MouseEventHandler(this.M_Move);

m_WindowPath = new GraphicsPath();
m_path = new GraphicsPath();
InvalidRect = Rectangle.Empty;

//Set RichTextBox properties
DebugWindow.Height = this.Height /8;
DebugWindow.Dock = DockStyle.Bottom;

// Set properties of TreeView control.
PathTree.Dock = DockStyle.Left;
PathTree.Width = this.ClientSize.Width / 6;
PathTree.TabIndex = 0;
PathTree.Nodes.Add(“Shapes”);

//Set Panel Properties
P1.Dock = DockStyle.Fill;
P1.BackColor = Color.Bisque;

//Set up the splitters
TreeSplitter.Location = new Point(PathTree.Width, 0);
TreeSplitter.Size = new Size(2, this.Height);
TreeSplitter.BackColor = Color.Black;

PanelSplitter.Dock = DockStyle.Bottom;
PanelSplitter.Height = 2;
PanelSplitter.BackColor = Color.Black;

}

///

protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
///

private void InitializeComponent()
{
this.mainMenu1 = new System.Windows.Forms.MainMenu();
this.menuItem1 = new System.Windows.Forms.MenuItem();
this.mnuExit = new System.Windows.Forms.MenuItem();
this.menuItem3 = new System.Windows.Forms.MenuItem();
this.menuItem4 = new System.Windows.Forms.MenuItem();
this.menuItem5 = new System.Windows.Forms.MenuItem();
this.menuItem2 = new System.Windows.Forms.MenuItem();
this.menuItem6 = new System.Windows.Forms.MenuItem();
this.menuItem7 = new System.Windows.Forms.MenuItem();
this.menuItem8 = new System.Windows.Forms.MenuItem();
this.menuItem9 = new System.Windows.Forms.MenuItem();
this.PathTree = new System.Windows.Forms.TreeView();
this.P1 = new System.Windows.Forms.Panel();
this.TreeSplitter = new System.Windows.Forms.Splitter();
this.menuItem10 = new System.Windows.Forms.MenuItem();
this.DebugWindow = new System.Windows.Forms.RichTextBox();
this.PanelSplitter = new System.Windows.Forms.Splitter();
this.SuspendLayout();
//
// mainMenu1
//
this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuItem1,
this.menuItem3,
this.menuItem7});
//
// menuItem1
//
this.menuItem1.Index = 0;
this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.mnuExit});
this.menuItem1.Text = “File”;
//
// mnuExit
//
this.mnuExit.Index = 0;
this.mnuExit.Text = “&Exit”;
this.mnuExit.Click += new System.EventHandler(this.mnuExit_Click);
//
// menuItem3
//
this.menuItem3.Index = 1;
this.menuItem3.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuItem4,
this.menuItem10,
this.menuItem5,
this.menuItem2,
this.menuItem6,
this.menuItem9});
this.menuItem3.Text = “Shape”;
//
// menuItem4
//
this.menuItem4.Index = 0;
this.menuItem4.Text = “Create”;
//
// menuItem5
//
this.menuItem5.Index = 2;
this.menuItem5.Text = “Resize”;
//
// menuItem2
//
this.menuItem2.Index = 3;
this.menuItem2.Text = “-“;
//
// menuItem6
//
this.menuItem6.Index = 4;
this.menuItem6.Text = “Load Shape”;
//
// menuItem7
//
this.menuItem7.Index = 2;
this.menuItem7.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuItem8});
this.menuItem7.Text = “Form”;
//
// menuItem8
//
this.menuItem8.Index = 0;
this.menuItem8.Text = “Spawn”;
//
// menuItem9
//
this.menuItem9.Index = 5;
this.menuItem9.Text = “Save Shape”;
//
// PathTree
//
this.PathTree.ImageIndex = -1;
this.PathTree.Name = “PathTree”;
this.PathTree.SelectedImageIndex = -1;
this.PathTree.Size = new System.Drawing.Size(88, 488);
this.PathTree.TabIndex = 0;
//
// P1
//
this.P1.Location = new System.Drawing.Point(112, 16);
this.P1.Name = “P1”;
this.P1.Size = new System.Drawing.Size(464, 472);
this.P1.TabIndex = 1;
//
// TreeSplitter
//
this.TreeSplitter.Name = “TreeSplitter”;
this.TreeSplitter.Size = new System.Drawing.Size(8, 573);
this.TreeSplitter.TabIndex = 2;
this.TreeSplitter.TabStop = false;
//
// menuItem10
//
this.menuItem10.Index = 1;
this.menuItem10.Text = “Smooth”;
//
// DebugWindow
//
this.DebugWindow.Location = new System.Drawing.Point(24, 520);
this.DebugWindow.Name = “DebugWindow”;
this.DebugWindow.Size = new System.Drawing.Size(536, 40);
this.DebugWindow.TabIndex = 3;
this.DebugWindow.Text = “richTextBox1”;
//
// PanelSplitter
//
this.PanelSplitter.Location = new System.Drawing.Point(8, 0);
this.PanelSplitter.Name = “PanelSplitter”;
this.PanelSplitter.Size = new System.Drawing.Size(8, 573);
this.PanelSplitter.TabIndex = 4;
this.PanelSplitter.TabStop = false;
//
// CustomWindow
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(592, 573);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.PanelSplitter,
this.DebugWindow,
this.TreeSplitter,
this.P1,
this.PathTree});
this.Menu = this.mainMenu1;
this.Name = “CustomWindow”;
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = “CustomWindow”;
this.Load += new System.EventHandler(this.CustomWindow_Load);
this.ResumeLayout(false);

}
#endregion

#region Main Entry Point
///

[STAThread]
static void Main()
{
Application.Run(new CustomWindow());
}
#endregion

private void CustomWindow_Load(object sender, System.EventArgs e)
{
}

// protected override void OnPaint(PaintEventArgs e)
// {
// Graphics G = e.Graphics;
// PaintMe(e.Graphics);
// }

private void PanelPaint(object sender, PaintEventArgs e)
{
PaintMe(e.Graphics);
}

private void PaintMe(Graphics G)
{
G.SmoothingMode = SmoothingMode.AntiAlias;

if (m_WindowPath.PointCount > 0)
G.DrawPath(Pens.Black, m_WindowPath);

if (m_path.PointCount > 0)
G.DrawPath(Pens.Red, m_path);
}

private void M_Down(object sender, MouseEventArgs m)
{
m_StartPoint = new Point(m.X, m.Y);
m_LastPoint = m_StartPoint;
m_WindowPath = new GraphicsPath();
m_Drawing = true;
P1.Invalidate();
}

private void M_Up(object sender, MouseEventArgs m)
{
m_WindowPath.CloseFigure();
m_Drawing = false;

//Smooth out the path by reducing lines that make up path
m_path = SmootherPath(m_WindowPath);
Matrix Q = new Matrix();
Q.Translate(50, 5);
m_path.Transform(Q);

int a = m_WindowPath.PointCount;
int b = m_path.PointCount;

//Draw the paths and make a window.
P1.Invalidate();
MakeWindow();
}

private void M_Move(object sender, MouseEventArgs m)
{
if(m_Drawing)
{
m_WindowPath.AddLine(m_LastPoint.X, m_LastPoint.Y, m.X, m.Y);
m_LastPoint.X = m.X;
m_LastPoint.Y = m.Y;

InvalidRect = Rectangle.Truncate(m_WindowPath.GetBounds());
InvalidRect.Inflate( new Size(2, 2) );
P1.Invalidate(InvalidRect);
}
}

///
/// Start first with reducing the number of lines in this graphics path
/// 1. read first point
/// 2. if x value of next point = x value of last point then skip
/// 3. if x value of next point != value of last point then…
/// 3a. make line based on these two points
/// 3b. add line to new path
/// 3c. first point = next point
/// 4. repeat 1-3c
/// 5. Repeat 1-4 for both X and Y
///
private GraphicsPath SmootherPath(GraphicsPath gp)
{
PathData pd = gp.PathData;
PointF pt1 = new Point(-1,-1);

//First do all values in the X range
GraphicsPath FixedPath_X = new GraphicsPath();
foreach (PointF p in pd.Points)
{
if (pt1.X == -1)
{
pt1 = p;
continue;
}
// If I introduced an error factor here I could smooth it out even more
if (p.X != pt1.X)
{
FixedPath_X.AddLine(pt1, p);
pt1 = p;
}
}
FixedPath_X.CloseFigure();

//Second do all values in the Y range
pd = FixedPath_X.PathData;
pt1 = new Point(-1,-1);
GraphicsPath FixedPath_Y = new GraphicsPath();
foreach (PointF p in pd.Points)
{
if (pt1.Y == -1)
{
pt1 = p;
continue;
}
// If I introduced an error factor here I could smooth it out even more
if (p.Y != pt1.Y)
{
FixedPath_Y.AddLine(pt1, p);
pt1 = p;
}
}
FixedPath_Y.CloseFigure();

return FixedPath_Y;
}

private void MakeWindow()
{
Form frm = new Form();
GraphicsPath path = (GraphicsPath)m_WindowPath.Clone();
Matrix Xlate = new Matrix();

//Find the lowest Y value and normalize all Y values to zero
//Find the lowest X value and normalize all X values to zero
PointF[] p = path.PathPoints;
int Xoffset = 9999;
int Yoffset = 9999;
foreach (PointF p2 in p)
{
if (p2.X < Xoffset) Xoffset = (int)p2.X; if (p2.Y < Yoffset) Yoffset = (int)p2.Y; } Xlate.Translate(-Xoffset, -Yoffset); path.Transform(Xlate); // Set the paractical viewing region of the form frm.Region = new Region(path); //Set the size of the form Rectangle frmRect = Rectangle.Truncate(path.GetBounds()); frm.Size = frmRect.Size; //Set some other parameters frm.StartPosition = FormStartPosition.CenterParent; frm.FormBorderStyle = FormBorderStyle.FixedSingle; frm.ShowDialog(); frm.Dispose(); Xlate.Dispose(); } private void mnuExit_Click(object sender, System.EventArgs e) { this.Close(); } } } CustomWindow.zip( 34 k)[/csharp]