Windows8 UI MessageBox In DevExpress

// custom messagebox
using System;
using System.Drawing;
using System.Windows.Forms;
using DevExpress.XtraBars.Docking2010.Views.WindowsUI;
using DevExpress.XtraBars.Docking2010.Customization;

namespace StatTools
{
    public static class MessageBoxService
    {
        public static DialogResult ShowMessageBox(Form InOwner, string InCaption, string InMessage, bool bShowCancel = false)
        {
            FlyoutAction action = new FlyoutAction() { Caption = InCaption, Description = InMessage };
            FlyoutCommand command1 = new FlyoutCommand() { Text = "确定", Result = System.Windows.Forms.DialogResult.Yes };

            action.Commands.Add(command1);

            if( bShowCancel )
            {
                FlyoutCommand command2 = new FlyoutCommand() { Text = "取消", Result = System.Windows.Forms.DialogResult.No };
                action.Commands.Add(command2);
            }

            FlyoutProperties properties = new FlyoutProperties();
            properties.ButtonSize = new Size(, );
            properties.Style = FlyoutStyle.MessageBox;

            return FlyoutDialog.Show(InOwner, action);
        }
    }
}