XtraTabbledMdiManager弹出右键菜单

private void xtraTabbedMdiManager1_MouseUp(object sender, MouseEventArgs e)
{
   //点左键无效, 必须是点右键弹出菜单
   if (e.Button != MouseButtons.Right) return;
   
   BaseTabHitInfo hint = xtraTabbedMdiManager1.CalcHitInfo(e.Location);
   
   //点击有效,且点击在TabPage标题上
   if (hint.IsValid && (hint.Page != null))
   {
      //有效子窗体
      if (xtraTabbedMdiManager1.SelectedPage.MdiChild != null)
      {
         Point p = xtraTabbedMdiManager1.SelectedPage.MdiChild.PointToScreen(e.Location);
         popupMenu1.ShowPopup(p); //显示弹出菜单
      }
   }
}

popupMenu1:dev控件的菜单控件