gistfile1.txt

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using AForge.Video;
using AForge.Video.FFMPEG;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        private VideoFileWriter writer;

        private int width = SystemInformation.VirtualScreen.Width;
        private int height = SystemInformation.VirtualScreen.Height;

        private ScreenCaptureStream streamVideo;

        private Stopwatch stopWatch = new Stopwatch();  

        public Form1()
        {
            InitializeComponent();

            writer = new VideoFileWriter();

        }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
               Start();
            }
            catch (Exception)
            {
                
                throw;
            }
        }

        private void Start()
        {
            recorded = true;

            frameCount = 0;

            try
            {
                writer.Open("C:\\test1222.avi", width, height, 12, VideoCodec.MPEG4, 5000);

                Rectangle screenArea= Rectangle.Empty;

                foreach (var screen in System.Windows.Forms.Screen.AllScreens)
                {
                    screenArea = Rectangle.Union(screenArea, screen.Bounds);
                }

                streamVideo = new ScreenCaptureStream(screenArea);

                streamVideo.NewFrame += new NewFrameEventHandler(handler_videoNewFrame);
                streamVideo.Start();
                stopWatch.Start();
            }
            catch (Exception)
            {
                
                throw;
            }
        }

        public bool recorded { get; set; }

        private void handler_videoNewFrame(object sender, NewFrameEventArgs eventargs)
        {
            if (recorded)
            {
                frameCount++;
                writer.WriteVideoFrame(eventargs.Frame);
            }
            else
            {
                stopWatch.Restart();
                Thread.Sleep(500);
                streamVideo.SignalToStop();
                Thread. Sleep(500);
                writer.Close();
            }

        }

        public int frameCount { get; set; }

        private void button2_Click(object sender, EventArgs e)
        {
            recorded = false;
        }
    }
}