[RESOLVED] Detect vertical scroll in picturebox?

[Traps]

Do I have to pinvoke to do this?

I tried

    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            myPictureBox x = new myPictureBox();
            x.Dock = DockStyle.Fill;
            this.Controls.Add(x);
        }
    }

    public class myPictureBox : PictureBox
    {
        protected override void WndProc(ref Message m)
        {
            base.WndProc(ref m);

            if (m.Msg == 0x115)
            {
                if (m.WParam.ToInt32() < 0)
                {
                }

                else
                {
                }
            }
        }
    }

But I think thats only for controls with a vertical scroll bar. Picturebox does not seem to fire the OnMouseWheel event....... Any ideas on how to do this in managed code?