Problem with TabControl

public class WizardTabControl : TabControl
{
    protected override void WndProc(ref Message m)
    {
        // Hide tabs by trapping the TCM_ADJUSTRECT message
        if (m.Msg == 0x1328 && !DesignMode)

           m.Result = IntPtr.Zero;

        else

           base.WndProc(ref m);
    }
}