检测PowerPoint是否进入了PPT全屏放映模式

豆包给了一段代码，可以检测PowerPoint是否进入了PPT全屏放映模式，VS2022，winform4.8

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;


using Microsoft.Office.Interop.PowerPoint;
using Microsoft.Office.Core;

namespace PowerPointTool
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
      
        }

        /// <summary>
        /// 检测 PowerPoint 是否处于全屏放映模式
        /// </summary>
        public static bool IsPowerPointFullScreen()
        {
            Microsoft.Office.Interop.PowerPoint.Application pptApp = null;
            try
            {
                // 获取正在运行的 PowerPoint 实例
                pptApp = (Microsoft.Office.Interop.PowerPoint.Application)System.Runtime.InteropServices.Marshal.GetActiveObject("PowerPoint.Application");

                if (pptApp.SlideShowWindows.Count > 0)
                {
                    foreach (SlideShowWindow window in pptApp.SlideShowWindows)
                    {
                        // 判断是否全屏
                        if (window.IsFullScreen == MsoTriState.msoTrue)
                            return true;
                    }
                }
                return false;
            }
            catch
            {
                // 没有运行 PowerPoint
                return false;
            }
            finally
            {
                // 释放 COM 对象，避免进程残留
                if (pptApp != null)
                {
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(pptApp);
                }
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            label1.Text = IsPowerPointFullScreen().ToString();
        }
    }
}