Displaying information about the key the user pressed
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
public class KeyDemo : System.Windows.Forms.Form
{
private System.Windows.Forms.Label charLabel;
private System.Windows.Forms.Label keyInfoLabel;
public KeyDemo()
{
InitializeComponent();
}
private void InitializeComponent()
{
this.charLabel = new System.Windows.Forms.Label();
this.keyInfoLabel = new System.Windows.Forms.Label();
this.SuspendLayout();
this.charLabel.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F);
this.charLabel.Location = new System.Drawing.Point(8, 8);
this.charLabel.Name = "charLabel";
this.charLabel.Size = new System.Drawing.Size(168, 32);
this.charLabel.TabIndex = 0;
this.keyInfoLabel.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F);
this.keyInfoLabel.Location = new System.Drawing.Point(8, 56);
this.keyInfoLabel.Name = "keyInfoLabel";
this.keyInfoLabel.Size = new System.Drawing.Size(168, 136);
this.keyInfoLabel.TabIndex = 0;
this.AutoScaleBaseSize = new System.Drawing.Size(15, 37);
this.ClientSize = new System.Drawing.Size(184, 197);
this.Controls.AddRange(new System.Windows.Forms.Control[] {this.keyInfoLabel,this.charLabel});
this.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F);
this.Name = "Key Demo";
this.Text = "Key Demo";
this.KeyDown +=new System.Windows.Forms.KeyEventHandler(this.KeyDemo_KeyDown );
this.KeyPress +=new System.Windows.Forms.KeyPressEventHandler(this.KeyDemo_KeyPress );
this.KeyUp +=new System.Windows.Forms.KeyEventHandler(this.KeyDemo_KeyUp );
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run( new KeyDemo() );
}
protected void KeyDemo_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e )
{
charLabel.Text = "Key pressed: " + e.KeyChar;
}
private void KeyDemo_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e )
{
keyInfoLabel.Text =
"Alt: " + (e.Alt ? "Yes" : "No") + '\n' +
"Shift: " + (e.Shift ? "Yes" : "No" ) + '\n' +
"Ctrl: " + (e.Control ? "Yes" : "No" ) + '\n' +
"KeyCode: " + e.KeyCode + '\n' +
"KeyData: " + e.KeyData + '\n' +
"KeyValue: " + e.KeyValue;
}
private void KeyDemo_KeyUp(object sender, System.Windows.Forms.KeyEventArgs e )
{
Console.WriteLine("Key up");
}
}
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