video v c#

void Film(string film, int sirina, int visina, int xkor, int ykor, int zacetek, int konec)
        {
            string sCommand;

            System.Windows.Forms.PictureBox videobox = pictureBox1;
            pictureBox1.Width = sirina;
            pictureBox1.Height = visina;
            pictureBox1.Location = new Point(xkor, ykor);

            sCommand = "open " + film + " type AVIvideo alias MediaFile style child parent " + videobox.Handle.ToInt32();
            mciSendString(sCommand, null, 0, IntPtr.Zero);

            sCommand = "put MediaFile window at 0 0 " + videobox.Width + " " + videobox.Height;
            mciSendString(sCommand, null, 0, IntPtr.Zero);

            sCommand = "Set MediaFile time format milliseconds";
            mciSendString(sCommand, null, 0, IntPtr.Zero);

            sCommand = "Play MediaFile from " + zacetek.ToString() + " to " + konec.ToString();
            mciSendString(sCommand, null, 0, IntPtr.Zero);

            pictureBox1.Show();

            tmr4.Interval = (konec - zacetek);
            tmr4.Start();
            tmr4.Tick += new EventHandler(Timer_Tick4);

         }



        private void Timer_Tick4(object sender, EventArgs eArgs) // da skrije pictureBox in ugasne film po koncu predvajanja
        {

            sCommand = "close Mediafile";
            mciSendString(sCommand, null, 0, IntPtr.Zero);

            pictureBox1.Hide();
            tmr4.Stop();
 
        }