1257 lines
46 KiB
C#
1257 lines
46 KiB
C#
using Microsoft.Office.Interop.PowerPoint;
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using System;
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using System.Diagnostics;
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using System.Runtime.InteropServices;
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using System.Threading;
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using System.Timers;
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using System.Windows.Threading;
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using Application = System.Windows.Application;
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using Timer = System.Timers.Timer;
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namespace Ink_Canvas.Helpers
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{
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/// <summary>
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/// 基于 COM 的 PPT 联动管理器
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/// </summary>
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public class ComPPTManager : IPPTLinkManager
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{
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#region Events
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public event Action<object> SlideShowBegin;
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public event Action<object> SlideShowNextSlide;
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public event Action<object> SlideShowEnd;
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public event Action<object> PresentationOpen;
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public event Action<object> PresentationClose;
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public event Action<bool> PPTConnectionChanged;
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public event Action<bool> SlideShowStateChanged;
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#endregion
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#region Properties
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public Microsoft.Office.Interop.PowerPoint.Application PPTApplication { get; private set; }
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object IPPTLinkManager.PPTApplication => PPTApplication;
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public Presentation CurrentPresentation { get; private set; }
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public Slides CurrentSlides { get; private set; }
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public Slide CurrentSlide { get; private set; }
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public int SlidesCount { get; private set; }
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public bool IsConnected
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{
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get
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{
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try
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{
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if (PPTApplication == null) return false;
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if (!Marshal.IsComObject(PPTApplication)) return false;
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// 尝试访问一个简单的属性来验证连接是否有效
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var _ = PPTApplication.Name;
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return true;
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}
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catch (COMException comEx)
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{
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var hr = (uint)comEx.HResult;
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// 如果COM对象已失效，返回false
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if (hr == 0x8001010E || hr == 0x80004005 || hr == 0x800706B5)
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{
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return false;
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}
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return false;
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}
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catch
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{
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return false;
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}
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}
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}
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public bool IsInSlideShow
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{
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get
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{
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object slideShowWindows = null;
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object slideShowWindow = null;
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object view = null;
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try
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{
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if (PPTApplication == null || !Marshal.IsComObject(PPTApplication)) return false;
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slideShowWindows = PPTApplication.SlideShowWindows;
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if (slideShowWindows == null) return false;
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dynamic ssw = slideShowWindows;
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if (ssw.Count == 0) return false;
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try
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{
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slideShowWindow = ssw[1];
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if (slideShowWindow == null) return false;
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dynamic sswObj = slideShowWindow;
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view = sswObj.View;
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if (view == null) return false;
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return true;
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}
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catch (COMException comEx)
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{
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var hr = (uint)comEx.HResult;
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if (hr == 0x8001010E || hr == 0x80004005)
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{
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DisconnectFromPPT();
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}
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return false;
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}
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}
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catch (COMException comEx)
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{
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var hr = (uint)comEx.HResult;
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if (hr == 0x8001010E || hr == 0x80004005)
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{
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DisconnectFromPPT();
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}
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LogHelper.WriteLogToFile($"检查PPT放映状态失败: {comEx.Message} (HR: 0x{hr:X8})", LogHelper.LogType.Warning);
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return false;
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}
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catch (Exception ex)
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{
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LogHelper.WriteLogToFile($"检查PPT放映状态时发生意外错误: {ex}", LogHelper.LogType.Warning);
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return false;
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}
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finally
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{
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SafeReleaseComObject(view);
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SafeReleaseComObject(slideShowWindow);
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SafeReleaseComObject(slideShowWindows);
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}
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}
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}
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/// <summary>
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/// 是否尝试支持 WPS（通过 COM 接口 kwpp.Application）
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/// </summary>
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public bool IsSupportWPS { get; set; } = false;
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#endregion
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#region Private Fields
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private Timer _connectionCheckTimer;
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private Timer _slideShowStateCheckTimer;
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private bool _isModuleUnloading = false;
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private bool _lastSlideShowState;
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private readonly object _lockObject = new object();
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private bool _disposed;
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#endregion
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#region Constructor & Initialization
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public ComPPTManager()
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{
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InitializeConnectionTimer();
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}
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private void InitializeConnectionTimer()
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{
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_connectionCheckTimer = new Timer(500);
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_connectionCheckTimer.Elapsed += OnConnectionCheckTimerElapsed;
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_connectionCheckTimer.AutoReset = true;
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_slideShowStateCheckTimer = new Timer(1000);
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_slideShowStateCheckTimer.Elapsed += OnSlideShowStateCheckTimerElapsed;
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_slideShowStateCheckTimer.AutoReset = true;
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}
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public void StartMonitoring()
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{
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if (!_disposed)
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{
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_connectionCheckTimer?.Start();
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_slideShowStateCheckTimer?.Start();
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LogHelper.WriteLogToFile("ComPPTManager: PPT监控已启动", LogHelper.LogType.Trace);
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}
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}
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public void StopMonitoring()
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{
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_connectionCheckTimer?.Stop();
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_slideShowStateCheckTimer?.Stop();
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DisconnectFromPPT();
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LogHelper.WriteLogToFile("ComPPTManager: PPT监控已停止", LogHelper.LogType.Trace);
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}
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#endregion
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#region Connection Management
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private void OnConnectionCheckTimerElapsed(object sender, ElapsedEventArgs e)
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{
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try
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{
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if (!_isModuleUnloading)
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{
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CheckAndConnectToPPT();
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}
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}
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catch (Exception ex)
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{
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LogHelper.WriteLogToFile($"ComPPTManager: PPT连接检查失败: {ex}", LogHelper.LogType.Error);
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}
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}
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private void OnSlideShowStateCheckTimerElapsed(object sender, ElapsedEventArgs e)
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{
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try
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{
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if (!_isModuleUnloading && IsConnected)
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{
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CheckSlideShowState();
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}
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}
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catch (Exception ex)
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{
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LogHelper.WriteLogToFile($"ComPPTManager: PPT放映状态检查失败: {ex}", LogHelper.LogType.Error);
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}
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}
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private void CheckAndConnectToPPT()
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{
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if (_isModuleUnloading) return;
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lock (_lockObject)
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{
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try
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{
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if (_isModuleUnloading) return;
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// 尝试连接到PowerPoint
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var pptApp = TryConnectToPowerPoint();
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if (pptApp == null && IsSupportWPS)
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{
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// 如果PowerPoint连接失败且支持WPS，尝试连接WPS
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pptApp = TryConnectToWPS();
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}
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if (pptApp != null && !IsConnected)
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{
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// 有可用的PPT/WPS应用程序且当前未连接，建立连接
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ConnectToPPT(pptApp);
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}
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else if (pptApp == null && IsConnected)
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{
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// 没有可用的PPT/WPS应用程序但当前显示已连接，断开连接
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DisconnectFromPPT();
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}
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else if (pptApp == null && PPTApplication != null)
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{
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// PPT/WPS应用程序不可用但PPTApplication对象仍存在，清理无效连接
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DisconnectFromPPT();
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}
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}
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catch (Exception ex)
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{
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LogHelper.WriteLogToFile($"ComPPTManager: PPT连接检查异常: {ex}", LogHelper.LogType.Error);
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if (PPTApplication != null)
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{
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DisconnectFromPPT();
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}
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}
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}
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}
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private void CheckSlideShowState()
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{
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try
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{
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if (!IsConnected) return;
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var currentSlideShowState = IsInSlideShow;
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if (currentSlideShowState != _lastSlideShowState)
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{
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_lastSlideShowState = currentSlideShowState;
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SlideShowStateChanged?.Invoke(currentSlideShowState);
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}
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}
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catch (Exception ex)
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{
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LogHelper.WriteLogToFile($"ComPPTManager: 检查PPT放映状态异常: {ex}", LogHelper.LogType.Error);
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}
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}
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private Microsoft.Office.Interop.PowerPoint.Application TryConnectToPowerPoint()
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{
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try
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{
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var pptApp = (Microsoft.Office.Interop.PowerPoint.Application)Marshal.GetActiveObject("PowerPoint.Application");
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if (pptApp != null && Marshal.IsComObject(pptApp))
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{
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var _ = pptApp.Name;
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return pptApp;
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}
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return null;
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}
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catch
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{
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return null;
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}
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}
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private Microsoft.Office.Interop.PowerPoint.Application TryConnectToWPS()
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{
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try
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{
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var wpsApp = (Microsoft.Office.Interop.PowerPoint.Application)Marshal.GetActiveObject("kwpp.Application");
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if (wpsApp != null && Marshal.IsComObject(wpsApp))
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{
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var _ = wpsApp.Name;
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return wpsApp;
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}
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return null;
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}
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catch
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{
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return null;
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}
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}
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private void ConnectToPPT(Microsoft.Office.Interop.PowerPoint.Application pptApp)
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{
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try
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{
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PPTApplication = pptApp;
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// 在主线程中注册事件，确保COM对象在正确的线程中
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Application.Current?.Dispatcher?.Invoke(() =>
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{
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try
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{
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PPTApplication.PresentationOpen += OnPresentationOpen;
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PPTApplication.PresentationClose += OnPresentationClose;
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PPTApplication.SlideShowBegin += OnSlideShowBegin;
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PPTApplication.SlideShowNextSlide += OnSlideShowNextSlide;
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PPTApplication.SlideShowEnd += OnSlideShowEnd;
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LogHelper.WriteLogToFile("ComPPTManager: PPT事件注册成功", LogHelper.LogType.Trace);
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}
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catch (Exception ex)
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{
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LogHelper.WriteLogToFile($"ComPPTManager: PPT事件注册失败: {ex}", LogHelper.LogType.Error);
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throw; // 重新抛出异常，让外层处理
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}
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}, DispatcherPriority.Normal, default, TimeSpan.FromSeconds(2));
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// 获取当前演示文稿信息
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UpdateCurrentPresentationInfo();
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// 停止连接检查定时器，避免重复连接
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_connectionCheckTimer?.Stop();
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// 触发连接成功事件
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PPTConnectionChanged?.Invoke(true);
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LogHelper.WriteLogToFile("ComPPTManager: 成功连接到PPT应用程序", LogHelper.LogType.Event);
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if (IsInSlideShow && PPTApplication.SlideShowWindows.Count > 0)
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{
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OnSlideShowBegin(PPTApplication.SlideShowWindows[1]);
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}
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else if (CurrentPresentation != null)
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{
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OnPresentationOpen(CurrentPresentation);
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}
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}
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catch (Exception ex)
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{
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LogHelper.WriteLogToFile($"ComPPTManager: 连接PPT应用程序失败: {ex}", LogHelper.LogType.Error);
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PPTApplication = null;
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}
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}
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private void DisconnectFromPPT()
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{
|
||
try
|
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{
|
||
if (PPTApplication != null)
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{
|
||
// 取消事件注册
|
||
try
|
||
{
|
||
if (Marshal.IsComObject(PPTApplication))
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||
{
|
||
Application.Current?.Dispatcher?.Invoke(() =>
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{
|
||
try
|
||
{
|
||
PPTApplication.PresentationOpen -= OnPresentationOpen;
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PPTApplication.PresentationClose -= OnPresentationClose;
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PPTApplication.SlideShowBegin -= OnSlideShowBegin;
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PPTApplication.SlideShowNextSlide -= OnSlideShowNextSlide;
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PPTApplication.SlideShowEnd -= OnSlideShowEnd;
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}
|
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catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 取消PPT事件注册时发生异常: {ex}", LogHelper.LogType.Warning);
|
||
}
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||
}, DispatcherPriority.Normal, default, TimeSpan.FromSeconds(1));
|
||
}
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 取消PPT事件注册失败: {ex}", LogHelper.LogType.Warning);
|
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}
|
||
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SafeReleaseComObject(CurrentSlide);
|
||
SafeReleaseComObject(CurrentSlides);
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||
SafeReleaseComObject(CurrentPresentation);
|
||
|
||
if (PPTApplication != null && Marshal.IsComObject(PPTApplication))
|
||
{
|
||
try
|
||
{
|
||
Marshal.FinalReleaseComObject(PPTApplication);
|
||
}
|
||
catch
|
||
{
|
||
try
|
||
{
|
||
int refCount = Marshal.ReleaseComObject(PPTApplication);
|
||
while (refCount > 0)
|
||
{
|
||
refCount = Marshal.ReleaseComObject(PPTApplication);
|
||
}
|
||
}
|
||
catch { }
|
||
}
|
||
}
|
||
}
|
||
|
||
PPTApplication = null;
|
||
CurrentPresentation = null;
|
||
CurrentSlides = null;
|
||
CurrentSlide = null;
|
||
SlidesCount = 0;
|
||
|
||
GC.Collect();
|
||
GC.WaitForPendingFinalizers();
|
||
GC.Collect();
|
||
|
||
_isModuleUnloading = true;
|
||
_connectionCheckTimer?.Stop();
|
||
_slideShowStateCheckTimer?.Stop();
|
||
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||
// 触发连接断开事件
|
||
PPTConnectionChanged?.Invoke(false);
|
||
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||
LogHelper.WriteLogToFile("ComPPTManager: 已断开PPT连接", LogHelper.LogType.Event);
|
||
|
||
ThreadPool.QueueUserWorkItem(_ =>
|
||
{
|
||
try
|
||
{
|
||
Thread.Sleep(2000);
|
||
|
||
GC.Collect();
|
||
GC.WaitForPendingFinalizers();
|
||
GC.Collect();
|
||
|
||
Thread.Sleep(1000);
|
||
|
||
_isModuleUnloading = false;
|
||
_connectionCheckTimer?.Start();
|
||
_slideShowStateCheckTimer?.Start();
|
||
|
||
LogHelper.WriteLogToFile("ComPPTManager: PPT联动模块已重新加载", LogHelper.LogType.Trace);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 重新加载PPT联动模块失败: {ex}", LogHelper.LogType.Error);
|
||
_isModuleUnloading = false;
|
||
}
|
||
});
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 断开PPT连接失败: {ex}", LogHelper.LogType.Error);
|
||
_isModuleUnloading = false;
|
||
}
|
||
}
|
||
|
||
private void SafeReleaseComObject(object comObject)
|
||
{
|
||
try
|
||
{
|
||
if (comObject != null && Marshal.IsComObject(comObject))
|
||
{
|
||
Marshal.ReleaseComObject(comObject);
|
||
}
|
||
}
|
||
catch { }
|
||
}
|
||
|
||
private void UpdateCurrentPresentationInfo()
|
||
{
|
||
object activePresentation = null;
|
||
object slideShowWindows = null;
|
||
object slideShowWindow = null;
|
||
object activeWindow = null;
|
||
object view = null;
|
||
object selection = null;
|
||
object slideRange = null;
|
||
|
||
try
|
||
{
|
||
if (PPTApplication != null && Marshal.IsComObject(PPTApplication))
|
||
{
|
||
try
|
||
{
|
||
activePresentation = PPTApplication.ActivePresentation;
|
||
if (activePresentation != null)
|
||
{
|
||
SafeReleaseComObject(CurrentPresentation);
|
||
CurrentPresentation = activePresentation as Presentation;
|
||
CurrentSlides = CurrentPresentation.Slides;
|
||
|
||
try
|
||
{
|
||
var slideCount = CurrentSlides.Count;
|
||
SlidesCount = slideCount > 0 ? slideCount : 0;
|
||
}
|
||
catch
|
||
{
|
||
SlidesCount = 0;
|
||
}
|
||
|
||
try
|
||
{
|
||
slideShowWindows = PPTApplication.SlideShowWindows;
|
||
if (IsInSlideShow && slideShowWindows != null)
|
||
{
|
||
dynamic ssw = slideShowWindows;
|
||
if (ssw.Count > 0)
|
||
{
|
||
slideShowWindow = ssw[1];
|
||
if (slideShowWindow != null)
|
||
{
|
||
dynamic sswObj = slideShowWindow;
|
||
view = sswObj.View;
|
||
if (view != null)
|
||
{
|
||
dynamic viewObj = view;
|
||
CurrentSlide = viewObj.Slide as Slide;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
activeWindow = PPTApplication.ActiveWindow;
|
||
if (activeWindow != null)
|
||
{
|
||
dynamic aw = activeWindow;
|
||
selection = aw.Selection;
|
||
if (selection != null)
|
||
{
|
||
dynamic sel = selection;
|
||
slideRange = sel.SlideRange;
|
||
if (slideRange != null)
|
||
{
|
||
dynamic sr = slideRange;
|
||
int slideNumber = sr.SlideNumber;
|
||
if (slideNumber > 0 && slideNumber <= SlidesCount)
|
||
{
|
||
CurrentSlide = CurrentSlides[slideNumber];
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
if (CurrentSlide == null && SlidesCount > 0)
|
||
{
|
||
CurrentSlide = CurrentSlides[1];
|
||
}
|
||
}
|
||
}
|
||
catch
|
||
{
|
||
if (SlidesCount > 0)
|
||
{
|
||
CurrentSlide = CurrentSlides[1];
|
||
}
|
||
}
|
||
}
|
||
else
|
||
{
|
||
CurrentPresentation = null;
|
||
CurrentSlides = null;
|
||
CurrentSlide = null;
|
||
SlidesCount = 0;
|
||
}
|
||
}
|
||
catch
|
||
{
|
||
CurrentPresentation = null;
|
||
CurrentSlides = null;
|
||
CurrentSlide = null;
|
||
SlidesCount = 0;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
CurrentPresentation = null;
|
||
CurrentSlides = null;
|
||
CurrentSlide = null;
|
||
SlidesCount = 0;
|
||
}
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 更新演示文稿信息失败: {ex}", LogHelper.LogType.Error);
|
||
CurrentPresentation = null;
|
||
CurrentSlides = null;
|
||
CurrentSlide = null;
|
||
SlidesCount = 0;
|
||
}
|
||
finally
|
||
{
|
||
SafeReleaseComObject(slideRange);
|
||
SafeReleaseComObject(selection);
|
||
SafeReleaseComObject(view);
|
||
SafeReleaseComObject(slideShowWindow);
|
||
SafeReleaseComObject(activeWindow);
|
||
SafeReleaseComObject(slideShowWindows);
|
||
if (activePresentation != null && !ReferenceEquals(activePresentation, CurrentPresentation))
|
||
{
|
||
SafeReleaseComObject(activePresentation);
|
||
}
|
||
}
|
||
}
|
||
#endregion
|
||
|
||
#region Event Handlers
|
||
private void OnPresentationOpen(Presentation pres)
|
||
{
|
||
try
|
||
{
|
||
UpdateCurrentPresentationInfo();
|
||
PresentationOpen?.Invoke(pres);
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 演示文稿已打开: {pres?.Name}", LogHelper.LogType.Event);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 处理演示文稿打开事件失败: {ex}", LogHelper.LogType.Error);
|
||
}
|
||
}
|
||
|
||
private void OnPresentationClose(Presentation pres)
|
||
{
|
||
try
|
||
{
|
||
PresentationClose?.Invoke(pres);
|
||
DisconnectFromPPT();
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 处理演示文稿关闭事件失败: {ex}", LogHelper.LogType.Error);
|
||
}
|
||
}
|
||
|
||
private void OnSlideShowBegin(SlideShowWindow wn)
|
||
{
|
||
try
|
||
{
|
||
UpdateCurrentPresentationInfo();
|
||
SlideShowBegin?.Invoke(wn);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 处理幻灯片放映开始事件失败: {ex}", LogHelper.LogType.Error);
|
||
}
|
||
}
|
||
|
||
private void OnSlideShowNextSlide(SlideShowWindow wn)
|
||
{
|
||
try
|
||
{
|
||
UpdateCurrentPresentationInfo();
|
||
SlideShowNextSlide?.Invoke(wn);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 处理幻灯片切换事件失败: {ex}", LogHelper.LogType.Error);
|
||
}
|
||
}
|
||
|
||
private void OnSlideShowEnd(Presentation pres)
|
||
{
|
||
try
|
||
{
|
||
SlideShowEnd?.Invoke(pres);
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"处理幻灯片放映结束事件失败: {ex}", LogHelper.LogType.Error);
|
||
}
|
||
}
|
||
#endregion
|
||
|
||
#region Public Navigation APIs
|
||
public bool TryNavigateToSlide(int slideNumber)
|
||
{
|
||
object slideShowWindows = null;
|
||
object slideShowWindow = null;
|
||
object view = null;
|
||
object windows = null;
|
||
object window = null;
|
||
object windowView = null;
|
||
try
|
||
{
|
||
if (!IsConnected || PPTApplication == null) return false;
|
||
if (!Marshal.IsComObject(PPTApplication)) return false;
|
||
|
||
if (IsInSlideShow)
|
||
{
|
||
slideShowWindows = PPTApplication.SlideShowWindows;
|
||
if (slideShowWindows != null)
|
||
{
|
||
dynamic ssw = slideShowWindows;
|
||
if (ssw.Count >= 1)
|
||
{
|
||
slideShowWindow = ssw[1];
|
||
if (slideShowWindow != null)
|
||
{
|
||
dynamic sswObj = slideShowWindow;
|
||
view = sswObj.View;
|
||
if (view != null)
|
||
{
|
||
dynamic viewObj = view;
|
||
viewObj.GotoSlide(slideNumber);
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
else if (CurrentPresentation != null)
|
||
{
|
||
windows = CurrentPresentation.Windows;
|
||
if (windows != null)
|
||
{
|
||
dynamic win = windows;
|
||
if (win.Count >= 1)
|
||
{
|
||
window = win[1];
|
||
if (window != null)
|
||
{
|
||
dynamic winObj = window;
|
||
windowView = winObj.View;
|
||
if (windowView != null)
|
||
{
|
||
dynamic viewObj = windowView;
|
||
viewObj.GotoSlide(slideNumber);
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x8001010E || hr == 0x80004005)
|
||
{
|
||
DisconnectFromPPT();
|
||
}
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 跳转到幻灯片{slideNumber}失败: {comEx.Message}", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 跳转到幻灯片{slideNumber}失败: {ex}", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
finally
|
||
{
|
||
SafeReleaseComObject(windowView);
|
||
SafeReleaseComObject(window);
|
||
SafeReleaseComObject(windows);
|
||
SafeReleaseComObject(view);
|
||
SafeReleaseComObject(slideShowWindow);
|
||
SafeReleaseComObject(slideShowWindows);
|
||
}
|
||
}
|
||
|
||
public bool TryNavigateNext()
|
||
{
|
||
object slideShowWindows = null;
|
||
object slideShowWindow = null;
|
||
object view = null;
|
||
try
|
||
{
|
||
if (!IsConnected || !IsInSlideShow || PPTApplication == null) return false;
|
||
if (!Marshal.IsComObject(PPTApplication)) return false;
|
||
|
||
slideShowWindows = PPTApplication.SlideShowWindows;
|
||
if (slideShowWindows != null)
|
||
{
|
||
dynamic ssw = slideShowWindows;
|
||
slideShowWindow = ssw[1];
|
||
if (slideShowWindow != null)
|
||
{
|
||
dynamic sswObj = slideShowWindow;
|
||
sswObj.Activate();
|
||
view = sswObj.View;
|
||
if (view != null)
|
||
{
|
||
dynamic viewObj = view;
|
||
viewObj.Next();
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x8001010E || hr == 0x80004005)
|
||
{
|
||
DisconnectFromPPT();
|
||
}
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 切换到下一页失败: {comEx.Message}", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 切换到下一页失败: {ex}", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
finally
|
||
{
|
||
SafeReleaseComObject(view);
|
||
SafeReleaseComObject(slideShowWindow);
|
||
SafeReleaseComObject(slideShowWindows);
|
||
}
|
||
}
|
||
|
||
public bool TryNavigatePrevious()
|
||
{
|
||
object slideShowWindows = null;
|
||
object slideShowWindow = null;
|
||
object view = null;
|
||
try
|
||
{
|
||
if (!IsConnected || !IsInSlideShow || PPTApplication == null) return false;
|
||
if (!Marshal.IsComObject(PPTApplication)) return false;
|
||
|
||
slideShowWindows = PPTApplication.SlideShowWindows;
|
||
if (slideShowWindows != null)
|
||
{
|
||
dynamic ssw = slideShowWindows;
|
||
slideShowWindow = ssw[1];
|
||
if (slideShowWindow != null)
|
||
{
|
||
dynamic sswObj = slideShowWindow;
|
||
sswObj.Activate();
|
||
view = sswObj.View;
|
||
if (view != null)
|
||
{
|
||
dynamic viewObj = view;
|
||
viewObj.Previous();
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x8001010E || hr == 0x80004005)
|
||
{
|
||
DisconnectFromPPT();
|
||
}
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 切换到上一页失败: {comEx.Message}", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 切换到上一页失败: {ex}", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
finally
|
||
{
|
||
SafeReleaseComObject(view);
|
||
SafeReleaseComObject(slideShowWindow);
|
||
SafeReleaseComObject(slideShowWindows);
|
||
}
|
||
}
|
||
|
||
public bool TryEndSlideShow()
|
||
{
|
||
object slideShowWindows = null;
|
||
object slideShowWindow = null;
|
||
object view = null;
|
||
try
|
||
{
|
||
if (!IsConnected || !IsInSlideShow || PPTApplication == null) return false;
|
||
if (!Marshal.IsComObject(PPTApplication)) return false;
|
||
|
||
slideShowWindows = PPTApplication.SlideShowWindows;
|
||
if (slideShowWindows != null)
|
||
{
|
||
dynamic ssw = slideShowWindows;
|
||
slideShowWindow = ssw[1];
|
||
if (slideShowWindow != null)
|
||
{
|
||
dynamic sswObj = slideShowWindow;
|
||
view = sswObj.View;
|
||
if (view != null)
|
||
{
|
||
dynamic viewObj = view;
|
||
viewObj.Exit();
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x8001010E || hr == 0x80004005)
|
||
{
|
||
DisconnectFromPPT();
|
||
}
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 结束幻灯片放映失败: {comEx.Message}", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 结束幻灯片放映失败: {ex}", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
finally
|
||
{
|
||
SafeReleaseComObject(view);
|
||
SafeReleaseComObject(slideShowWindow);
|
||
SafeReleaseComObject(slideShowWindows);
|
||
}
|
||
}
|
||
|
||
public bool TryStartSlideShow()
|
||
{
|
||
try
|
||
{
|
||
if (!IsConnected || CurrentPresentation == null || PPTApplication == null) return false;
|
||
if (!Marshal.IsComObject(PPTApplication) || !Marshal.IsComObject(CurrentPresentation)) return false;
|
||
|
||
CurrentPresentation.SlideShowSettings.Run();
|
||
return true;
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x8001010E || hr == 0x80004005)
|
||
{
|
||
DisconnectFromPPT();
|
||
}
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 开始幻灯片放映失败: {comEx.Message}", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 开始幻灯片放映失败: {ex}", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
}
|
||
|
||
public object GetCurrentActivePresentation()
|
||
{
|
||
try
|
||
{
|
||
if (!IsConnected || PPTApplication == null) return null;
|
||
if (!Marshal.IsComObject(PPTApplication)) return null;
|
||
|
||
if (IsInSlideShow && PPTApplication.SlideShowWindows.Count > 0)
|
||
{
|
||
try
|
||
{
|
||
var slideShowWindow = PPTApplication.SlideShowWindows[1];
|
||
if (slideShowWindow?.View != null)
|
||
{
|
||
return (Presentation)slideShowWindow.View.Slide.Parent;
|
||
}
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x80048240)
|
||
{
|
||
return null;
|
||
}
|
||
throw;
|
||
}
|
||
}
|
||
|
||
if (PPTApplication.ActiveWindow?.Presentation != null)
|
||
{
|
||
return PPTApplication.ActiveWindow.Presentation;
|
||
}
|
||
|
||
return CurrentPresentation;
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x8001010E || hr == 0x80004005)
|
||
{
|
||
DisconnectFromPPT();
|
||
}
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 获取当前活跃演示文稿失败: {comEx.Message}", LogHelper.LogType.Warning);
|
||
return CurrentPresentation;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 获取当前活跃演示文稿失败: {ex}", LogHelper.LogType.Error);
|
||
return CurrentPresentation;
|
||
}
|
||
}
|
||
|
||
public int GetCurrentSlideNumber()
|
||
{
|
||
object slideShowWindows = null;
|
||
object slideShowWindow = null;
|
||
object view = null;
|
||
object activeWindow = null;
|
||
object selection = null;
|
||
object slideRange = null;
|
||
try
|
||
{
|
||
if (!IsConnected || PPTApplication == null) return 0;
|
||
if (!Marshal.IsComObject(PPTApplication)) return 0;
|
||
|
||
if (IsInSlideShow)
|
||
{
|
||
slideShowWindows = PPTApplication.SlideShowWindows;
|
||
if (slideShowWindows != null)
|
||
{
|
||
dynamic ssw = slideShowWindows;
|
||
if (ssw.Count > 0)
|
||
{
|
||
slideShowWindow = ssw[1];
|
||
if (slideShowWindow != null)
|
||
{
|
||
dynamic sswObj = slideShowWindow;
|
||
view = sswObj.View;
|
||
if (view != null)
|
||
{
|
||
dynamic viewObj = view;
|
||
return viewObj.CurrentShowPosition;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
activeWindow = PPTApplication.ActiveWindow;
|
||
if (activeWindow != null)
|
||
{
|
||
dynamic aw = activeWindow;
|
||
selection = aw.Selection;
|
||
if (selection != null)
|
||
{
|
||
dynamic sel = selection;
|
||
slideRange = sel.SlideRange;
|
||
if (slideRange != null)
|
||
{
|
||
dynamic sr = slideRange;
|
||
int slideNumber = sr.SlideNumber;
|
||
if (slideNumber > 0)
|
||
{
|
||
return slideNumber;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
if (CurrentSlide != null && Marshal.IsComObject(CurrentSlide))
|
||
{
|
||
return CurrentSlide.SlideNumber;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x8001010E || hr == 0x80004005)
|
||
{
|
||
DisconnectFromPPT();
|
||
}
|
||
return 0;
|
||
}
|
||
catch
|
||
{
|
||
return 0;
|
||
}
|
||
finally
|
||
{
|
||
SafeReleaseComObject(slideRange);
|
||
SafeReleaseComObject(selection);
|
||
SafeReleaseComObject(view);
|
||
SafeReleaseComObject(slideShowWindow);
|
||
SafeReleaseComObject(slideShowWindows);
|
||
SafeReleaseComObject(activeWindow);
|
||
}
|
||
}
|
||
|
||
public string GetPresentationName()
|
||
{
|
||
try
|
||
{
|
||
if (CurrentPresentation == null || !Marshal.IsComObject(CurrentPresentation)) return "";
|
||
|
||
return CurrentPresentation.Name ?? "";
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x8001010E || hr == 0x80004005)
|
||
{
|
||
DisconnectFromPPT();
|
||
}
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 获取演示文稿名称失败: {comEx.Message}", LogHelper.LogType.Warning);
|
||
return "";
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 获取演示文稿名称失败: {ex}", LogHelper.LogType.Error);
|
||
return "";
|
||
}
|
||
}
|
||
|
||
public string GetPresentationPath()
|
||
{
|
||
try
|
||
{
|
||
if (CurrentPresentation == null || !Marshal.IsComObject(CurrentPresentation)) return "";
|
||
|
||
return CurrentPresentation.FullName ?? "";
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x8001010E || hr == 0x80004005)
|
||
{
|
||
DisconnectFromPPT();
|
||
}
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 获取演示文稿路径失败: {comEx.Message}", LogHelper.LogType.Warning);
|
||
return "";
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 获取演示文稿路径失败: {ex}", LogHelper.LogType.Error);
|
||
return "";
|
||
}
|
||
}
|
||
|
||
public bool TryShowSlideNavigation()
|
||
{
|
||
object slideShowWindows = null;
|
||
object slideShowWindow = null;
|
||
object slideNavigation = null;
|
||
try
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 尝试显示幻灯片导航 - 连接状态: {IsConnected}, 放映状态: {IsInSlideShow}", LogHelper.LogType.Trace);
|
||
|
||
if (!IsConnected || !IsInSlideShow || PPTApplication == null)
|
||
{
|
||
LogHelper.WriteLogToFile("ComPPTManager: PPT未连接或未在放映状态", LogHelper.LogType.Warning);
|
||
return false;
|
||
}
|
||
|
||
if (!Marshal.IsComObject(PPTApplication))
|
||
{
|
||
LogHelper.WriteLogToFile("ComPPTManager: PPT应用程序COM对象无效", LogHelper.LogType.Warning);
|
||
return false;
|
||
}
|
||
|
||
slideShowWindows = PPTApplication.SlideShowWindows;
|
||
if (slideShowWindows != null)
|
||
{
|
||
dynamic ssw = slideShowWindows;
|
||
slideShowWindow = ssw[1];
|
||
if (slideShowWindow == null)
|
||
{
|
||
LogHelper.WriteLogToFile("ComPPTManager: 幻灯片放映窗口为空", LogHelper.LogType.Warning);
|
||
return false;
|
||
}
|
||
|
||
try
|
||
{
|
||
dynamic sswObj = slideShowWindow;
|
||
slideNavigation = sswObj.SlideNavigation;
|
||
if (slideNavigation != null)
|
||
{
|
||
dynamic sn = slideNavigation;
|
||
sn.Visible = true;
|
||
LogHelper.WriteLogToFile("ComPPTManager: 成功显示幻灯片导航（PowerPoint模式）", LogHelper.LogType.Event);
|
||
return true;
|
||
}
|
||
|
||
LogHelper.WriteLogToFile("ComPPTManager: SlideNavigation对象为空，可能是WPS不支持此功能", LogHelper.LogType.Warning);
|
||
return false;
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x80020006)
|
||
{
|
||
LogHelper.WriteLogToFile("ComPPTManager: WPS不支持SlideNavigation功能", LogHelper.LogType.Warning);
|
||
return false;
|
||
}
|
||
throw;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
catch (COMException comEx)
|
||
{
|
||
var hr = (uint)comEx.HResult;
|
||
if (hr == 0x8001010E || hr == 0x80004005)
|
||
{
|
||
DisconnectFromPPT();
|
||
}
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 显示幻灯片导航COM异常: {comEx.Message} (HRESULT: 0x{hr:X8})", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
catch (Exception ex)
|
||
{
|
||
LogHelper.WriteLogToFile($"ComPPTManager: 显示幻灯片导航失败: {ex}", LogHelper.LogType.Error);
|
||
return false;
|
||
}
|
||
finally
|
||
{
|
||
SafeReleaseComObject(slideNavigation);
|
||
SafeReleaseComObject(slideShowWindow);
|
||
SafeReleaseComObject(slideShowWindows);
|
||
}
|
||
}
|
||
#endregion
|
||
|
||
#region Dispose
|
||
public void Dispose()
|
||
{
|
||
if (!_disposed)
|
||
{
|
||
StopMonitoring();
|
||
|
||
_connectionCheckTimer?.Dispose();
|
||
_slideShowStateCheckTimer?.Dispose();
|
||
|
||
_disposed = true;
|
||
}
|
||
}
|
||
#endregion
|
||
}
|
||
}
|
||
|
||
|