Keyboard timer : Windows API : Windows C# Source Code

Keyboard timer

    
 

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

public class KeyTimer : System.Windows.Forms.Form {
    private System.ComponentModel.Container components = null;
    private uint start = 0;
    private uint stop = 0;

    [DllImport("kernel32.dll")]
    public static extern uint GetTickCount();

    public KeyTimer() {
    }

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

    }

    protected override void OnKeyDown(KeyEventArgs args) {
        start = GetTickCount();
    }

    protected override void OnKeyUp(KeyEventArgs args) {
        stop = GetTickCount();
        uint elapsed = (stop - start);
        MessageBox.Show(Convert.ToString(args.KeyData) + ", time elapsed: " + Convert.ToString(elapsed) + " msecs");
    }
}

 
    
   
  
   

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