Mouse and Key Events

This article explains the usage of key and mouse events. The following code shows you how you can read mouse position on mouse move.

The MouseEventArgs's X and Y member contains x and y mouse positions.

private void OnMouseMoveEvent(object sender,MouseEventArgs e)
{
//Application.Exit();
if (ixStart == 0 && iyStart == 0)
{
ixStart = e.X;
iyStart = e.Y;
}
else if (e.X != ixStart || e.Y != iyStart)
Application.Exit();
}
// 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.

Source Code:

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace ScreenSave
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : 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 Form1()
{
//
// 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()
{
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);
//
// Form1
//
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 = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "Form1";
this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
this.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.OnKeyPressEvent);
this.Load += new System.EventHandler(this.Form1_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 Form1());
}
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 Form1_Load(object sender, System.EventArgs e)
{
}
private void OnMouseMoveEvent(object sender,MouseEventArgs e)
{
//Application.Exit();
if (ixStart == 0 && 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)
{
}
}
}