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MouseButtons Enumeration

Specifies constants that define which mouse button was pressed.

This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

[ComVisibleAttribute(true)] 
[FlagsAttribute] 
public enum MouseButtons
/** @attribute ComVisibleAttribute(true) */ 
/** @attribute FlagsAttribute() */ 
public enum MouseButtons
ComVisibleAttribute(true) 
FlagsAttribute 
public enum MouseButtons

 Member nameDescription
Supported by the .NET Compact FrameworkLeftThe left mouse button was pressed. 
Supported by the .NET Compact FrameworkMiddleThe middle mouse button was pressed. 
Supported by the .NET Compact FrameworkNoneNo mouse button was pressed. 
Supported by the .NET Compact FrameworkRightThe right mouse button was pressed. 
XButton1The first XButton was pressed. 

With Windows 2000, Microsoft is introducing support for the Microsoft IntelliMouse Explorer, which is a mouse with five buttons. The two new mouse buttons (XBUTTON1 and XBUTTON2) provide backward/forward navigation.

XButton2The second XButton was pressed. 

With Windows 2000, Microsoft is introducing support for the Microsoft IntelliMouse Explorer, which is a mouse with five buttons. The two new mouse buttons (XBUTTON1 and XBUTTON2) provide backward/forward navigation.

This enumeration is used by many classes, including AxHost, Control, DataGrid, Form, RadioButton, Splitter, StatusBar, and UpDownBase.

The following example demonstrates how to use the GetCharFromPosition method to obtain a character from the contents of a RichTextBox given its control coordinates. The example code uses coordinates located in the MouseEventArgs object passed as a parameter to the event handler to determine the location in the control to obtain the character. The character is then displayed in a MessageBox if it is not a space character. This example assumes that a RichTextBox control named richTextBox1 has been created and that the example code is connected to the MouseDown event of the RichTextBox.

private void richTextBox1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
    // Determine which mouse button is clicked.
    if(e.Button == MouseButtons.Left)
    {
        // Obtain the character at which the mouse cursor was clicked at.
        char tempChar = richTextBox1.GetCharFromPosition(new Point(e.X, e.Y));
        // Determine whether the character is an empty space.
        if (tempChar.ToString() != " ")
            // Display the character in a message box.
            MessageBox.Show("The character at the specified position is " + tempChar + ".");

    }
}

private void richTextBox1_MouseDown(Object sender, System.Windows.
    Forms.MouseEventArgs e)
{
    // Determine which mouse button is clicked.
    if (e.get_Button().Equals(get_MouseButtons().Left)) {
        // Obtain the character at which the mouse cursor was clicked at.
        char tempChar = richTextBox1.GetCharFromPosition(new Point(e.
             get_X(), e.get_Y()));
        // Determine whether the character is an empty space.
        if (!(((System.Char)tempChar).ToString().Equals(" "))) {
            // Display the character in a message box.
            MessageBox.Show("The character at the specified position is " 
                + tempChar + ".");
        }
    }
} //richTextBox1_MouseDown 

The following example demonstrates using different mouse events to draw the path of the mouse on a Panel. A line segment is added to the GraphicsPath for each MouseMove and MouseDown events that occur. To update the graphics, the Invalidate method is called for the Panel on each MouseDown and MouseUp event. In addition, the graphic path is scrolled up or down when the MouseWheel event occurs. Additional mouse events, like MouseHover, are identified on screen as well. Also displayed on the screen is additional information about the mouse from the SystemInformation class.

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

namespace MouseEvent
{
    public class Form1 : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Panel panel1;
        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.Label label7;
        private System.Windows.Forms.Label label8;
        private System.Windows.Forms.Label label9;
        private System.Windows.Forms.Button clearButton;
        private System.Drawing.Drawing2D.GraphicsPath mousePath;
        private System.Windows.Forms.GroupBox groupBox1;

        private int fontSize = 20;        

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

        public Form1()
        {            
            mousePath = new System.Drawing.Drawing2D.GraphicsPath();

            this.panel1 = new System.Windows.Forms.Panel();
            this.label1 = new System.Windows.Forms.Label();
            this.clearButton = new System.Windows.Forms.Button();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.label4 = new System.Windows.Forms.Label();
            this.label5 = new System.Windows.Forms.Label();
            this.label6 = new System.Windows.Forms.Label();
            this.label7 = new System.Windows.Forms.Label();
            this.label8 = new System.Windows.Forms.Label();
            this.label9 = new System.Windows.Forms.Label();
            this.groupBox1 = new System.Windows.Forms.GroupBox();

            // Mouse Events Label
            this.label1.Location = new System.Drawing.Point(24, 504);
            this.label1.Size = new System.Drawing.Size(392, 23);
            // DoubleClickSize Label
            this.label2.AutoSize = true;
            this.label2.Location = new System.Drawing.Point(24, 48);
            this.label2.Size = new System.Drawing.Size(35, 13);
            // DoubleClickTime Label
            this.label3.AutoSize = true;
            this.label3.Location = new System.Drawing.Point(24, 72);
            this.label3.Size = new System.Drawing.Size(35, 13);
            // MousePresent Label
            this.label4.AutoSize = true;
            this.label4.Location = new System.Drawing.Point(24, 96);
            this.label4.Size = new System.Drawing.Size(35, 13);
            // MouseButtons Label
            this.label5.AutoSize = true;
            this.label5.Location = new System.Drawing.Point(24, 120);
            this.label5.Size = new System.Drawing.Size(35, 13);
            // MouseButtonsSwapped Label
            this.label6.AutoSize = true;
            this.label6.Location = new System.Drawing.Point(320, 48);
            this.label6.Size = new System.Drawing.Size(35, 13);
            // MouseWheelPresent Label
            this.label7.AutoSize = true;
            this.label7.Location = new System.Drawing.Point(320, 72);
            this.label7.Size = new System.Drawing.Size(35, 13);
            // MouseWheelScrollLines Label
            this.label8.AutoSize = true;
            this.label8.Location = new System.Drawing.Point(320, 96);
            this.label8.Size = new System.Drawing.Size(35, 13);
            // NativeMouseWheelSupport Label
            this.label9.AutoSize = true;
            this.label9.Location = new System.Drawing.Point(320, 120);
            this.label9.Size = new System.Drawing.Size(35, 13);

            // Mouse Panel
            this.panel1.Anchor = ((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
                | System.Windows.Forms.AnchorStyles.Right);
            this.panel1.BackColor = System.Drawing.SystemColors.ControlDark;
            this.panel1.Location = new System.Drawing.Point(16, 160);
            this.panel1.Size = new System.Drawing.Size(664, 320);
            this.panel1.MouseUp += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseUp);
            this.panel1.Paint += new System.Windows.Forms.PaintEventHandler(this.panel1_Paint);
            this.panel1.MouseEnter += new System.EventHandler(this.panel1_MouseEnter);
            this.panel1.MouseHover += new System.EventHandler(this.panel1_MouseHover);
            this.panel1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseMove);
            this.panel1.MouseLeave += new System.EventHandler(this.panel1_MouseLeave);
            this.panel1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseDown);
            this.panel1.MouseWheel += new System.Windows.Forms.MouseEventHandler(this.panel1_MouseWheel);

            // Clear Button
            this.clearButton.Anchor = (System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right);
            this.clearButton.Location = new System.Drawing.Point(592, 504);
            this.clearButton.TabIndex = 1;
            this.clearButton.Text = "Clear";
            this.clearButton.Click += new System.EventHandler(this.clearButton_Click);
            
            // GroupBox
            this.groupBox1.Anchor = ((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
                | System.Windows.Forms.AnchorStyles.Right);
            this.groupBox1.Location = new System.Drawing.Point(16, 24);
            this.groupBox1.Size = new System.Drawing.Size(664, 128);
            this.groupBox1.Text = "System.Windows.Forms.SystemInformation";

            // Set up how the form should be displayed and add the controls to the form.
            this.ClientSize = new System.Drawing.Size(696, 534);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                        this.label9,this.label8,this.label7,this.label6,
                                        this.label5,this.label4,this.label3,this.label2,
                                        this.clearButton,this.panel1,this.label1,this.groupBox1});
            this.Text = "Mouse Event Example";

            // Displays information about the system mouse.
            label2.Text = "SystemInformation.DoubleClickSize: " + SystemInformation.DoubleClickSize.ToString();
            label3.Text = "SystemInformation.DoubleClickTime: " + SystemInformation.DoubleClickTime.ToString();
            label4.Text = "SystemInformation.MousePresent: " + SystemInformation.MousePresent.ToString();
            label5.Text = "SystemInformation.MouseButtons: " + SystemInformation.MouseButtons.ToString();
            label6.Text = "SystemInformation.MouseButtonsSwapped: " + SystemInformation.MouseButtonsSwapped.ToString();
            label7.Text = "SystemInformation.MouseWheelPresent: " + SystemInformation.MouseWheelPresent.ToString();
            label8.Text = "SystemInformation.MouseWheelScrollLines: " + SystemInformation.MouseWheelScrollLines.ToString();
            label9.Text = "SystemInformation.NativeMouseWheelSupport: " + SystemInformation.NativeMouseWheelSupport.ToString();

        }

        private void panel1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) 
        {
            // Update the mouse path with the mouse information
            Point mouseDownLocation = new Point(e.X, e.Y);

            string eventString = null;
            switch (e.Button) {
                case MouseButtons.Left:
                    eventString = "L";
                    break;
                case MouseButtons.Right:
                    eventString = "R";
                    break;
                case MouseButtons.Middle:
                    eventString = "M";
                    break;
                case MouseButtons.XButton1:
                    eventString = "X1";
                    break;
                case MouseButtons.XButton2:
                    eventString = "X2";
                    break;
                case MouseButtons.None:
                default:
                    break;
            }

            if (eventString != null) 
            {
                mousePath.AddString(eventString, FontFamily.GenericSerif, (int)FontStyle.Bold, fontSize, mouseDownLocation, StringFormat.GenericDefault);
            }
            else 
            {
                mousePath.AddLine(mouseDownLocation,mouseDownLocation);
            }
            panel1.Focus();
            panel1.Invalidate();
        }

        private void panel1_MouseEnter(object sender, System.EventArgs e) 
        {
            // Update the mouse event label to indicate the MouseEnter event occurred.
            label1.Text = sender.GetType().ToString() + ": MouseEnter";
        }

        private void panel1_MouseHover(object sender, System.EventArgs e) 
        {
            // Update the mouse event label to indicate the MouseHover event occurred.
            label1.Text = sender.GetType().ToString() + ": MouseHover";
        }

        private void panel1_MouseLeave(object sender, System.EventArgs e) 
        {
            // Update the mouse event label to indicate the MouseLeave event occurred.
            label1.Text = sender.GetType().ToString() + ": MouseLeave";
        }

        private void panel1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            // Update the mouse path that is drawn onto the Panel.
            int mouseX = e.X;
            int mouseY = e.Y;
            
            mousePath.AddLine(mouseX,mouseY,mouseX,mouseY);
        }

        private void panel1_MouseWheel(object sender, System.Windows.Forms.MouseEventArgs e)
        {
            // Update the drawing based upon the mouse wheel scrolling.
      
            int numberOfTextLinesToMove = e.Delta * SystemInformation.MouseWheelScrollLines / 120;
            int numberOfPixelsToMove = numberOfTextLinesToMove * fontSize;

            if (numberOfPixelsToMove != 0) {
                System.Drawing.Drawing2D.Matrix translateMatrix = new  System.Drawing.Drawing2D.Matrix();
                translateMatrix.Translate(0, numberOfPixelsToMove);
                mousePath.Transform(translateMatrix);
            }
            panel1.Invalidate();
        }
        private void panel1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e) 
        {
            Point mouseUpLocation = new System.Drawing.Point(e.X, e.Y);
        
            // Show the number of clicks in the path graphic.
            int numberOfClicks = e.Clicks;
            mousePath.AddString("    " + numberOfClicks.ToString(), 
                        FontFamily.GenericSerif, (int)FontStyle.Bold, 
                        fontSize, mouseUpLocation, StringFormat.GenericDefault);

            panel1.Invalidate();
        }

        private void panel1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) 
        {    
            // Perform the painting of the Panel.
            e.Graphics.DrawPath(System.Drawing.Pens.DarkRed, mousePath);
        }

        private void clearButton_Click(object sender, System.EventArgs e)
        {
            // Clear the Panel display.
            mousePath.Dispose();
            mousePath = new System.Drawing.Drawing2D.GraphicsPath();
            panel1.Invalidate();
        }
    }
}

package MouseEvent;
import System.*;
import System.Drawing.*;
import System.Windows.Forms.*;

public class Form1 extends System.Windows.Forms.Form
{
    private System.Windows.Forms.Panel panel1;
    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.Label label7;
    private System.Windows.Forms.Label label8;
    private System.Windows.Forms.Label label9;
    private System.Windows.Forms.Button clearButton;
    private System.Drawing.Drawing2D.GraphicsPath mousePath;
    private System.Windows.Forms.GroupBox groupBox1;
    private int fontSize = 20;

    /** @attribute STAThread()
     */
    public static void main(String[] args)
    {
        Application.Run(new Form1());
    } //main

    public Form1()
    {
        mousePath = new System.Drawing.Drawing2D.GraphicsPath();

        this.panel1 = new System.Windows.Forms.Panel();
        this.label1 = new System.Windows.Forms.Label();
        this.clearButton = new System.Windows.Forms.Button();
        this.label2 = new System.Windows.Forms.Label();
        this.label3 = new System.Windows.Forms.Label();
        this.label4 = new System.Windows.Forms.Label();
        this.label5 = new System.Windows.Forms.Label();
        this.label6 = new System.Windows.Forms.Label();
        this.label7 = new System.Windows.Forms.Label();
        this.label8 = new System.Windows.Forms.Label();
        this.label9 = new System.Windows.Forms.Label();
        this.groupBox1 = new System.Windows.Forms.GroupBox();
        // Mouse Events Label
        this.label1.set_Location(new System.Drawing.Point(24, 504));
        this.label1.set_Size(new System.Drawing.Size(392, 23));
        // DoubleClickSize Label
        this.label2.set_AutoSize(true);
        this.label2.set_Location(new System.Drawing.Point(24, 48));
        this.label2.set_Size(new System.Drawing.Size(35, 13));
        // DoubleClickTime Label
        this.label3.set_AutoSize(true);
        this.label3.set_Location(new System.Drawing.Point(24, 72));
        this.label3.set_Size(new System.Drawing.Size(35, 13));
        // MousePresent Label
        this.label4.set_AutoSize(true);
        this.label4.set_Location(new System.Drawing.Point(24, 96));
        this.label4.set_Size(new System.Drawing.Size(35, 13));
        // MouseButtons Label
        this.label5.set_AutoSize(true);
        this.label5.set_Location(new System.Drawing.Point(24, 120));
        this.label5.set_Size(new System.Drawing.Size(35, 13));
        // MouseButtonsSwapped Label
        this.label6.set_AutoSize(true);
        this.label6.set_Location(new System.Drawing.Point(320, 48));
        this.label6.set_Size(new System.Drawing.Size(35, 13));
        // MouseWheelPresent Label
        this.label7.set_AutoSize(true);
        this.label7.set_Location(new System.Drawing.Point(320, 72));
        this.label7.set_Size(new System.Drawing.Size(35, 13));
        // MouseWheelScrollLines Label
        this.label8.set_AutoSize(true);
        this.label8.set_Location(new System.Drawing.Point(320, 96));
        this.label8.set_Size(new System.Drawing.Size(35, 13));
        // NativeMouseWheelSupport Label
        this.label9.set_AutoSize(true);
        this.label9.set_Location(new System.Drawing.Point(320, 120));
        this.label9.set_Size(new System.Drawing.Size(35, 13));
        // Mouse Panel
        this.panel1.set_Anchor(System.Windows.Forms.AnchorStyles.Top
            | System.Windows.Forms.AnchorStyles.Left
            | System.Windows.Forms.AnchorStyles.Right);
        this.panel1.set_BackColor(System.Drawing.SystemColors.get_ControlDark());
        this.panel1.set_Location(new System.Drawing.Point(16, 160));
        this.panel1.set_Size(new System.Drawing.Size(664, 320));
        this.panel1.add_MouseUp(
            new System.Windows.Forms.MouseEventHandler(this.panel1_MouseUp));
        this.panel1.add_Paint(new System.Windows.Forms.PaintEventHandler(
            this.panel1_Paint));
        this.panel1.add_MouseEnter(new System.EventHandler(
            this.panel1_MouseEnter));
        this.panel1.add_MouseHover(new System.EventHandler(
            this.panel1_MouseHover));
        this.panel1.add_MouseMove(
            new System.Windows.Forms.MouseEventHandler(this.panel1_MouseMove));
        this.panel1.add_MouseLeave(
            new System.EventHandler(this.panel1_MouseLeave));
        this.panel1.add_MouseDown(
            new System.Windows.Forms.MouseEventHandler(this.panel1_MouseDown));
        this.panel1.add_MouseWheel(
            new System.Windows.Forms.MouseEventHandler(this.panel1_MouseWheel));
        // Clear Button
        this.clearButton.set_Anchor(System.Windows.Forms.AnchorStyles.Top
            | System.Windows.Forms.AnchorStyles.Right);
        this.clearButton.set_Location(new System.Drawing.Point(592, 504));
        this.clearButton.set_TabIndex(1);
        this.clearButton.set_Text("Clear");
        this.clearButton.add_Click(new System.EventHandler(
            this.clearButton_Click));
        // GroupBox
        this.groupBox1.set_Anchor(System.Windows.Forms.AnchorStyles.Top
            | System.Windows.Forms.AnchorStyles.Left
            | System.Windows.Forms.AnchorStyles.Right);
        this.groupBox1.set_Location(new System.Drawing.Point(16, 24));
        this.groupBox1.set_Size(new System.Drawing.Size(664, 128));
        this.groupBox1.set_Text("System.Windows.Forms.SystemInformation");
        // Set up how the form should be displayed and add the controls
        // to the form.
        this.set_ClientSize(new System.Drawing.Size(696, 534));
        this.get_Controls().AddRange(new System.Windows.Forms.Control[] {
            this.label9, this.label8, this.label7, this.label6, this.label5,
            this.label4, this.label3, this.label2, this.clearButton,
            this.panel1, this.label1, this.groupBox1 });
        this.set_Text("Mouse Event Example");
        // Displays information about the system mouse.
        label2.set_Text("SystemInformation.DoubleClickSize: "
            + SystemInformation.get_DoubleClickSize().ToString());
        label3.set_Text("SystemInformation.DoubleClickTime: "
            + ((Int32)SystemInformation.get_DoubleClickTime()).ToString());
        label4.set_Text("SystemInformation.MousePresent: "
            + ((System.Boolean)SystemInformation.get_MousePresent()).ToString());
        label5.set_Text("SystemInformation.MouseButtons: "
            + ((Int32)SystemInformation.get_MouseButtons()).ToString());
        label6.set_Text("SystemInformation.MouseButtonsSwapped: "
            + ((System.Boolean)SystemInformation.get_MouseButtonsSwapped()).
            ToString());
        label7.set_Text("SystemInformation.MouseWheelPresent: "
            + ((System.Boolean)SystemInformation.get_MouseWheelPresent()).
            ToString());
        label8.set_Text("SystemInformation.MouseWheelScrollLines: "
            + ((Int32)SystemInformation.get_MouseWheelScrollLines()).
            ToString());
        label9.set_Text("SystemInformation.NativeMouseWheelSupport: "
            + ((System.Boolean)SystemInformation.
            get_NativeMouseWheelSupport()).ToString());
    } //Form1

    private void panel1_MouseDown(Object sender,
        System.Windows.Forms.MouseEventArgs e)
    {
        // Update the mouse path with the mouse information
        Point mouseDownLocation = new Point(e.get_X(), e.get_Y());

        String eventString = null;
        switch (e.get_Button()) {
            case MouseButtons.Left:
                eventString = "L";
                break;
            case MouseButtons.Right:
                eventString = "R";
                break;
            case MouseButtons.Middle:
                eventString = "M";
                break;
            case MouseButtons.XButton1:
                eventString = "X1";
                break;
            case MouseButtons.XButton2:
                eventString = "X2";
                break;
            case MouseButtons.None:
            default:
                break;
        }

        if (eventString != null) {
            mousePath.AddString(eventString, FontFamily.get_GenericSerif(),
                (int)FontStyle.Bold, fontSize, mouseDownLocation,
                StringFormat.get_GenericDefault());
        }
        else {
            mousePath.AddLine(mouseDownLocation, mouseDownLocation);
        }
        panel1.Focus();
        panel1.Invalidate();
    } //panel1_MouseDown

    private void panel1_MouseEnter(Object sender, System.EventArgs e)
    {
        // Update the mouse event label to indicate the MouseEnter event occurred.
        label1.set_Text(sender.GetType().ToString() + ": MouseEnter");
    } //panel1_MouseEnter

    private void panel1_MouseHover(Object sender, System.EventArgs e)
    {
        // Update the mouse event label to indicate the MouseHover event occurred.
        label1.set_Text(sender.GetType().ToString() + ": MouseHover");
    } //panel1_MouseHover

    private void panel1_MouseLeave(Object sender, System.EventArgs e)
    {
        // Update the mouse event label to indicate the MouseLeave event occurred.
        label1.set_Text(sender.GetType().ToString() + ": MouseLeave");
    } //panel1_MouseLeave

    private void panel1_MouseMove(Object sender,
        System.Windows.Forms.MouseEventArgs e)
    {
        // Update the mouse path that is drawn onto the Panel.
        int mouseX = e.get_X();
        int mouseY = e.get_Y();

        mousePath.AddLine(mouseX, mouseY, mouseX, mouseY);
    } //panel1_MouseMove

    private void panel1_MouseWheel(Object sender,
        System.Windows.Forms.MouseEventArgs e)
    {
        // Update the drawing based upon the mouse wheel scrolling.
        int numberOfTextLinesToMove =
            e.get_Delta() * SystemInformation.get_MouseWheelScrollLines() / 120;
        int numberOfPixelsToMove = numberOfTextLinesToMove * fontSize;

        if (numberOfPixelsToMove != 0) {
            System.Drawing.Drawing2D.Matrix translateMatrix =
                new System.Drawing.Drawing2D.Matrix();
            translateMatrix.Translate(0, numberOfPixelsToMove);
            mousePath.Transform(translateMatrix);
        }
        panel1.Invalidate();
    } //panel1_MouseWheel

    private void panel1_MouseUp(Object sender,
        System.Windows.Forms.MouseEventArgs e)
    {
        Point mouseUpLocation = new System.Drawing.Point(e.get_X(), e.get_Y());
        // Show the number of clicks in the path graphic.
        int numberOfClicks = e.get_Clicks();
        mousePath.AddString("    " + ((Int32)numberOfClicks).ToString(),
            FontFamily.get_GenericSerif(), (int)(FontStyle.Bold), fontSize,
            mouseUpLocation, StringFormat.get_GenericDefault());

        panel1.Invalidate();
    } //panel1_MouseUp

    private void panel1_Paint(Object sender,
        System.Windows.Forms.PaintEventArgs e)
    {
        // Perform the painting of the Panel.
        e.get_Graphics().DrawPath(System.Drawing.Pens.get_DarkRed(), mousePath);
    } //panel1_Paint

    private void clearButton_Click(Object sender, System.EventArgs e)
    {
        // Clear the Panel display.
        mousePath.Dispose();
        mousePath = new System.Drawing.Drawing2D.GraphicsPath();
        panel1.Invalidate();
    } //clearButton_Click
} //Form1

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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