C disables the middle mouse button method

     The method is as follows: 
 The statement 1 Event: 
 Num_DiscountAmount.MouseWheel +=new MouseEventHandler(Num_DiscountAmount_MouseWheel);
 write 1 An event 
private void  Num_DiscountAmount_MouseWheel(object sender, MouseEventArgs e) 
{
HandledMouseEventArgs h = e as HandledMouseEventArgs;
if (h != null)
{
h.Handled = true;
}
}
 There are   The first 3 Party controls DevExpress.XtraEditors.SpinEdit , How to disable the middle mouse button? 
 The method is as follows: 
 Declaration event:  (SpinEdit1.Controls[0] as DevExpress.XtraEditors.TextBoxMaskBox).MouseWheel += new MouseEventHandler(Frm_MouseWheel);
 Write events: 
void Frm_MouseWheel(object sender, MouseEventArgs e)
{
if (e.Delta != 0)
DevExpress.Utils.DXMouseEventArgs.GetMouseArgs(e).Handled = true;
}