请教个问题,怎样在winform窗体中禁止双击窗体后缩小

protected override void WndProc(ref   System.Windows.Forms.Message m)
        {
            if (m.Msg == 0x00A3)
            {
                m.WParam = System.IntPtr.Zero;
            }
            base.WndProc(ref   m);
        }