C#

Process process = new Process();<br />
      process.StartInfo.UseShellExecute = false;<br />
      process.StartInfo.RedirectStandardInput = true;<br />
      process.StartInfo.RedirectStandardError = true;<br />
      process.StartInfo.CreateNoWindow = true;<br />
      process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;<br />
      process.StartInfo.FileName = "C:\ffmpeg\ffmpeg.exe";<br />
      process.StartInfo.Arguments = "ffmpeg -y -i ‘C:\video.flv’ -vhook ‘C:\ffmpeg\ffmpeg.exe' -f C:\Image.gif";<br />
      process.Start();<br />

public static DateTime PauseForMilliSeconds( int MilliSecondsToPauseFor )<br />
        {<br />
            <br />
            <br />
            System.DateTime ThisMoment  = System.DateTime.Now                                       ;<br />
            System.TimeSpan duration    = new System.TimeSpan( 0, 0, 0, 0, MilliSecondsToPauseFor ) ;<br />
            System.DateTime AfterWards  = ThisMoment.Add( duration )                                ;<br />
            <br />
            <br />
            while ( AfterWards >= ThisMoment  )<br />
            {<br />
                    System.Windows.Forms.Application.DoEvents() ;<br />
                    ThisMoment = System.DateTime.Now            ;<br />
            }<br />
            <br />
            <br />
            return System.DateTime.Now ;<br />
        }<br />
<br />

<code>
using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace Listview_Colum_header_checkbox
{
    class CCehckBox : CheckBox
    {
        public CCehckBox()
        {
            Width = 14;
            Height = 14;
            //a
            //ValidationConstraints.Visible
            //AutoValidate.EnablePreventFocusChange;
        }

        protected override void OnPaint(PaintEventArgs pevent)
        {
            Invalidate();
            base.OnPaint(pevent);
        }
    }

    class CListViewHeader : ColumnHeader
    {
        void CListViewHeader()
        {
        }
    }

    class CListview : ListView
    {
        private readonly CCehckBox _cCehckBox = new CCehckBox();
        private readonly ColumnHeader _header1 = new ColumnHeader();
        private readonly ColumnHeader _header2 = new ColumnHeader();
        private readonly ColumnHeader _header3 = new ColumnHeader();

        #region  PInvoke Declarations

        [DllImport("user32")]
        private static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);

        #endregion

        public CListview()
        {
            View = View.Details;

            _header1 = Columns.Add("Name");
            _header1.Width = (Location.X + 5) + 6;
            _header1.AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent);
            _header1.Name = "CheckBox";
            _header1.DisplayIndex = 0;

            _header2 = Columns.Add("bah");
            _header2.Width = (Width - 20) - 50;

            _header3 = Columns.Add("boh");
            _header3.Width = 50;

            var wijd = _cCehckBox.Width;
            var hoog = _cCehckBox.Height;
            _cCehckBox.Location = new Point(Location.X+ 5, Location.Y + 5);
        }


        protected override void OnColumnWidthChanged(ColumnWidthChangedEventArgs e)
        {
            
            if(e.ColumnIndex == 0)
            {
                //MessageBox.Show(e.ColumnIndex.ToString());
                //_header1.ListView.AllowColumnReorder = false;
                //_header1.ListView.CausesValidation = false;

                _header1.Width = (Location.X + 5) + 6; 
                _cCehckBox.BringToFront();
                //Invalidate();
            }
            base.OnColumnWidthChanged(e);
        }

        protected override void OnHandleCreated(EventArgs e)
        {
            SetParent(_cCehckBox.Handle, Handle);
            base.OnHandleCreated(e);
        }
    }
}

</code>