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.


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)
{
}
}
}