C# MDI - how do I prevent the scroll bar?
namespace Controls
 {
  public partial class BaseForm : Form
  {
    public BaseForm()
    {
      InitializeComponent();
      StartPosition = FormStartPosition.WindowsDefaultLocation;
      MaximizeBox = false;
      Width = 806;
      //Width = 850;
      //Height = 760;
      Height = 730;
      //Width = 790;
      //Height = 617;
    }


    protected override void WndProc(ref Message m)
    {
      const int WM_SYSCOMMAND = 0x0112;
      const int SC_MOVE = 0xF010;
      //ShowScrollBar(this.Handle, (int)ScrollBarDirection.SB_BOTH, false);
      switch (m.Msg)
      {
        case WM_SYSCOMMAND:
          int command = m.WParam.ToInt32() & 0xfff0;
          if (command == SC_MOVE)
            return;
          break;
      }
      base.WndProc(ref m);
    }
  }
}

public partial class childform : BaseForm
{
   .......
}

internal class MyNativeMDIclient : NativeWindow
    {
        private MdiClient mdiClient;

        public MyNativeMDIclient(MdiClient parent)
        {
            mdiClient = parent;
            ReleaseHandle();
            AssignHandle(mdiClient.Handle);
        }
        internal void OnHandleDestroyed(object sender, EventArgs e)
        {
            ReleaseHandle();
        }
        private const int SB_BOTH = 3;
        [DllImport("user32.dll")]
        private static extern int ShowScrollBar(IntPtr hWnd, int wBar, int bShow);
        protected override void WndProc(ref Message m)
        {
            ShowScrollBar(m.HWnd, SB_BOTH, 0 /*false*/);
            base.WndProc(ref m);
        }
    }

foreach (Control control in this.Controls)
            {
                if (control is MdiClient)
                {
                    MyNativeMDIclient nw = new MyNativeMDIclient(control);
                    break;
                }
            }