Interaction with windows media player between forms

I have 3 Forms.

• Form2 is used as a background form. It loops a video using windows media player.


• Form3 is a menu form with two buttons - Picture and Video.


• Form4 is the video form. It plays a video when it is opened using windows media player.

My problem: When I open Form4(video) I need to pause or stop Form2(background). This is because the Form4 video will lagg/stutter when I play video on Form2 and kat the same time.

My attempt:

private Form4 f4 = new Form4();
private void StopVideo()
    {
        if (f4.Visible)
        {
            axWindowsMediaPlayer2.Ctlcontrols.stop();
        }
        else
        {
            axWindowsMediaPlayer2.Ctlcontrols.play();
        }
    }

axWindowsMediaPlayer2 is the player in Form2. I want to stop it when Form4 is active/visible and start it when Form4 is closed.