diff --git a/Ink Canvas/Helpers/PPTManager.cs b/Ink Canvas/Helpers/PPTManager.cs
index de2f6acf..e0442d28 100644
--- a/Ink Canvas/Helpers/PPTManager.cs
+++ b/Ink Canvas/Helpers/PPTManager.cs
@@ -67,22 +67,28 @@ namespace Ink_Canvas.Helpers
{
get
{
+ object slideShowWindows = null;
+ object slideShowWindow = null;
+ object view = null;
try
{
if (PPTApplication == null || !Marshal.IsComObject(PPTApplication)) return false;
- // 检查是否有放映窗口
- var slideShowWindows = PPTApplication.SlideShowWindows;
- if (slideShowWindows == null || slideShowWindows.Count == 0) return false;
+ slideShowWindows = PPTApplication.SlideShowWindows;
+ if (slideShowWindows == null) return false;
+
+ dynamic ssw = slideShowWindows;
+ if (ssw.Count == 0) return false;
- // 验证放映窗口是否真正有效
try
{
- var slideShowWindow = slideShowWindows[1];
+ slideShowWindow = ssw[1];
if (slideShowWindow == null) return false;
- // 尝试访问放映窗口的属性来验证其有效性
- var _ = slideShowWindow.View;
+ dynamic sswObj = slideShowWindow;
+ view = sswObj.View;
+ if (view == null) return false;
+
return true;
}
catch (COMException comEx)
@@ -90,7 +96,6 @@ namespace Ink_Canvas.Helpers
var hr = (uint)comEx.HResult;
if (hr == 0x8001010E || hr == 0x80004005)
{
- // COM对象已失效，触发断开连接
DisconnectFromPPT();
}
return false;
@@ -101,7 +106,6 @@ namespace Ink_Canvas.Helpers
var hr = (uint)comEx.HResult;
if (hr == 0x8001010E || hr == 0x80004005)
{
- // COM对象已失效，触发断开连接
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"检查PPT放映状态失败: {comEx.Message} (HR: 0x{hr:X8})", LogHelper.LogType.Warning);
@@ -112,6 +116,12 @@ namespace Ink_Canvas.Helpers
LogHelper.WriteLogToFile($"检查PPT放映状态时发生意外错误: {ex}", LogHelper.LogType.Warning);
return false;
}
+ finally
+ {
+ SafeReleaseComObject(view);
+ SafeReleaseComObject(slideShowWindow);
+ SafeReleaseComObject(slideShowWindows);
+ }
}
}
public bool IsSupportWPS { get; set; } = false;
@@ -122,6 +132,7 @@ namespace Ink_Canvas.Helpers
private Timer _slideShowStateCheckTimer;
private Timer _wpsProcessCheckTimer;
private Process _wpsProcess;
+ private bool _isModuleUnloading = false;
private bool _hasWpsProcessId;
private DateTime _wpsProcessRecordTime = DateTime.MinValue;
private int _wpsProcessCheckCount;
@@ -173,7 +184,10 @@ namespace Ink_Canvas.Helpers
{
try
{
- CheckAndConnectToPPT();
+ if (!_isModuleUnloading)
+ {
+ CheckAndConnectToPPT();
+ }
}
catch (Exception ex)
{
@@ -185,7 +199,10 @@ namespace Ink_Canvas.Helpers
{
try
{
- CheckSlideShowState();
+ if (!_isModuleUnloading && IsConnected)
+ {
+ CheckSlideShowState();
+ }
}
catch (Exception ex)
{
@@ -195,10 +212,14 @@ namespace Ink_Canvas.Helpers
private void CheckAndConnectToPPT()
{
+ if (_isModuleUnloading) return;
+
lock (_lockObject)
{
try
{
+ if (_isModuleUnloading) return;
+
// 尝试连接到PowerPoint
var pptApp = TryConnectToPowerPoint();
if (pptApp == null && IsSupportWPS)
@@ -418,10 +439,31 @@ namespace Ink_Canvas.Helpers
LogHelper.WriteLogToFile("成功连接到PPT应用程序", LogHelper.LogType.Event);
- // 如果已经在放映状态，立即触发放映开始事件
if (IsInSlideShow)
{
- OnSlideShowBegin(PPTApplication.SlideShowWindows[1]);
+ object slideShowWindows = null;
+ object slideShowWindow = null;
+ try
+ {
+ slideShowWindows = PPTApplication.SlideShowWindows;
+ if (slideShowWindows != null)
+ {
+ dynamic ssw = slideShowWindows;
+ if (ssw.Count > 0)
+ {
+ slideShowWindow = ssw[1];
+ if (slideShowWindow != null)
+ {
+ OnSlideShowBegin(slideShowWindow as SlideShowWindow);
+ }
+ }
+ }
+ }
+ finally
+ {
+ SafeReleaseComObject(slideShowWindow);
+ SafeReleaseComObject(slideShowWindows);
+ }
}
else if (CurrentPresentation != null)
{
@@ -488,17 +530,17 @@ namespace Ink_Canvas.Helpers
{
try
{
- int refCount = Marshal.ReleaseComObject(PPTApplication);
- while (refCount > 0)
- {
- refCount = Marshal.ReleaseComObject(PPTApplication);
- }
+ Marshal.FinalReleaseComObject(PPTApplication);
}
catch
{
try
{
- Marshal.FinalReleaseComObject(PPTApplication);
+ int refCount = Marshal.ReleaseComObject(PPTApplication);
+ while (refCount > 0)
+ {
+ refCount = Marshal.ReleaseComObject(PPTApplication);
+ }
}
catch { }
}
@@ -514,24 +556,63 @@ namespace Ink_Canvas.Helpers
GC.WaitForPendingFinalizers();
GC.Collect();
- // 重新启动连接检查定时器
- _connectionCheckTimer?.Start();
+ _isModuleUnloading = true;
+ _connectionCheckTimer?.Stop();
+ _slideShowStateCheckTimer?.Stop();
// 触发连接断开事件
PPTConnectionChanged?.Invoke(false);
- LogHelper.WriteLogToFile("已断开PPT连接", LogHelper.LogType.Event);
+ LogHelper.WriteLogToFile("已断开PPT连接，暂时卸载模块以确保COM完全释放", 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("PPT联动模块已重新加载", LogHelper.LogType.Trace);
+ }
+ catch (Exception ex)
+ {
+ LogHelper.WriteLogToFile($"重新加载PPT联动模块失败: {ex}", LogHelper.LogType.Error);
+ _isModuleUnloading = false;
+ }
+ });
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"断开PPT连接失败: {ex}", LogHelper.LogType.Error);
+ _isModuleUnloading = false;
}
}
///
/// 安全释放COM对象
///
+ private void SafeReleaseComObject(object comObject)
+ {
+ try
+ {
+ if (comObject != null && Marshal.IsComObject(comObject))
+ {
+ Marshal.ReleaseComObject(comObject);
+ }
+ }
+ catch { }
+ }
+
private void SafeReleaseComObject(object comObject, string objectName)
{
try
@@ -555,20 +636,27 @@ namespace Ink_Canvas.Helpers
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))
{
- // 检查是否有活动的演示文稿
try
{
- var activePresentation = PPTApplication.ActivePresentation;
+ activePresentation = PPTApplication.ActivePresentation;
if (activePresentation != null)
{
- CurrentPresentation = activePresentation;
+ SafeReleaseComObject(CurrentPresentation, "CurrentPresentation");
+ CurrentPresentation = activePresentation as Presentation;
CurrentSlides = CurrentPresentation.Slides;
- // 验证页数读取是否成功
try
{
var slideCount = CurrentSlides.Count;
@@ -578,39 +666,69 @@ namespace Ink_Canvas.Helpers
}
else
{
- // 页数为0，可能是空演示文稿或读取失败
SlidesCount = 0;
LogHelper.WriteLogToFile("PPT演示文稿页数为0，可能为空演示文稿", LogHelper.LogType.Warning);
}
}
catch (COMException comEx)
{
- // 页数读取失败
var hr = (uint)comEx.HResult;
SlidesCount = 0;
LogHelper.WriteLogToFile($"读取PPT页数失败: {comEx.Message} (HR: 0x{hr:X8})", LogHelper.LogType.Warning);
}
- // 获取当前幻灯片
try
{
- if (IsInSlideShow && PPTApplication.SlideShowWindows.Count > 0)
+ slideShowWindows = PPTApplication.SlideShowWindows;
+ if (IsInSlideShow && slideShowWindows != null)
{
- CurrentSlide = PPTApplication.SlideShowWindows[1].View.Slide;
+ 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 if (PPTApplication.ActiveWindow?.Selection?.SlideRange?.SlideNumber > 0)
+ else
{
- CurrentSlide = CurrentSlides[PPTApplication.ActiveWindow.Selection.SlideRange.SlideNumber];
- }
- else if (SlidesCount > 0)
- {
- // 如果获取失败，使用第一张幻灯片
- CurrentSlide = CurrentSlides[1];
+ 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 (COMException comEx)
{
- // COM异常，尝试使用第一张幻灯片
var hr = (uint)comEx.HResult;
if (hr != 0x8001010E && hr != 0x80004005)
{
@@ -625,7 +743,6 @@ namespace Ink_Canvas.Helpers
}
else
{
- // 没有活动演示文稿，清理状态
CurrentPresentation = null;
CurrentSlides = null;
CurrentSlide = null;
@@ -637,7 +754,6 @@ namespace Ink_Canvas.Helpers
var hr = (uint)comEx.HResult;
if (hr == 0x8001010E || hr == 0x80004005)
{
- // 常见的COM错误，可能是没有活动演示文稿
CurrentPresentation = null;
CurrentSlides = null;
CurrentSlide = null;
@@ -651,7 +767,6 @@ namespace Ink_Canvas.Helpers
}
else
{
- // PPT应用程序无效，清理状态
CurrentPresentation = null;
CurrentSlides = null;
CurrentSlide = null;
@@ -661,12 +776,24 @@ namespace Ink_Canvas.Helpers
catch (Exception ex)
{
LogHelper.WriteLogToFile($"更新演示文稿信息失败: {ex}", LogHelper.LogType.Error);
- // 发生异常时清理状态
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
@@ -748,26 +875,61 @@ namespace Ink_Canvas.Helpers
#region Public Methods
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 && PPTApplication.SlideShowWindows.Count >= 1)
+ if (IsInSlideShow)
{
- var slideShowWindow = PPTApplication.SlideShowWindows[1];
- if (slideShowWindow?.View != null)
+ slideShowWindows = PPTApplication.SlideShowWindows;
+ if (slideShowWindows != null)
{
- slideShowWindow.View.GotoSlide(slideNumber);
- return true;
+ 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)
{
- if (CurrentPresentation.Windows?.Count >= 1)
+ windows = CurrentPresentation.Windows;
+ if (windows != null)
{
- CurrentPresentation.Windows[1].View.GotoSlide(slideNumber);
- return true;
+ 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;
@@ -777,7 +939,6 @@ namespace Ink_Canvas.Helpers
var hr = (uint)comEx.HResult;
if (hr == 0x8001010E || hr == 0x80004005)
{
- // COM对象已失效，触发断开连接
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"跳转到幻灯片{slideNumber}失败: {comEx.Message}", LogHelper.LogType.Error);
@@ -788,21 +949,44 @@ namespace Ink_Canvas.Helpers
LogHelper.WriteLogToFile($"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;
- var slideShowWindow = PPTApplication.SlideShowWindows[1];
- if (slideShowWindow?.View != null)
+ slideShowWindows = PPTApplication.SlideShowWindows;
+ if (slideShowWindows != null)
{
- slideShowWindow.Activate();
- slideShowWindow.View.Next();
- return true;
+ 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;
}
@@ -811,7 +995,6 @@ namespace Ink_Canvas.Helpers
var hr = (uint)comEx.HResult;
if (hr == 0x8001010E || hr == 0x80004005)
{
- // COM对象已失效，触发断开连接
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"切换到下一页失败: {comEx.Message}", LogHelper.LogType.Error);
@@ -822,21 +1005,41 @@ namespace Ink_Canvas.Helpers
LogHelper.WriteLogToFile($"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;
- var slideShowWindow = PPTApplication.SlideShowWindows[1];
- if (slideShowWindow?.View != null)
+ slideShowWindows = PPTApplication.SlideShowWindows;
+ if (slideShowWindows != null)
{
- slideShowWindow.Activate();
- slideShowWindow.View.Previous();
- return true;
+ 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;
}
@@ -845,7 +1048,6 @@ namespace Ink_Canvas.Helpers
var hr = (uint)comEx.HResult;
if (hr == 0x8001010E || hr == 0x80004005)
{
- // COM对象已失效，触发断开连接
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"切换到上一页失败: {comEx.Message}", LogHelper.LogType.Error);
@@ -856,20 +1058,40 @@ namespace Ink_Canvas.Helpers
LogHelper.WriteLogToFile($"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;
- var slideShowWindow = PPTApplication.SlideShowWindows[1];
- if (slideShowWindow?.View != null)
+ slideShowWindows = PPTApplication.SlideShowWindows;
+ if (slideShowWindows != null)
{
- slideShowWindow.View.Exit();
- return true;
+ 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;
}
@@ -878,7 +1100,6 @@ namespace Ink_Canvas.Helpers
var hr = (uint)comEx.HResult;
if (hr == 0x8001010E || hr == 0x80004005)
{
- // COM对象已失效，触发断开连接
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"结束幻灯片放映失败: {comEx.Message}", LogHelper.LogType.Error);
@@ -889,6 +1110,12 @@ namespace Ink_Canvas.Helpers
LogHelper.WriteLogToFile($"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()
@@ -920,45 +1147,61 @@ namespace Ink_Canvas.Helpers
}
///
- /// 获取当前活跃的演示文稿（用于多窗口墨迹分离）
+ /// 获取当前活跃的演示文稿
///
public Presentation GetCurrentActivePresentation()
{
+ object slideShowWindows = null;
+ object slideShowWindow = null;
+ object view = null;
+ object slide = null;
+ object activeWindow = null;
+ object presentation = null;
try
{
if (!IsConnected || PPTApplication == null) return null;
if (!Marshal.IsComObject(PPTApplication)) return null;
- // 如果在放映模式，获取放映窗口的演示文稿
- if (IsInSlideShow && PPTApplication.SlideShowWindows.Count > 0)
+ if (IsInSlideShow)
{
- try
+ slideShowWindows = PPTApplication.SlideShowWindows;
+ if (slideShowWindows != null)
{
- var slideShowWindow = PPTApplication.SlideShowWindows[1];
- if (slideShowWindow?.View != null)
+ dynamic ssw = slideShowWindows;
+ if (ssw.Count > 0)
{
- return (Presentation)slideShowWindow.View.Slide.Parent;
+ slideShowWindow = ssw[1];
+ if (slideShowWindow != null)
+ {
+ dynamic sswObj = slideShowWindow;
+ view = sswObj.View;
+ if (view != null)
+ {
+ dynamic viewObj = view;
+ slide = viewObj.Slide;
+ if (slide != null)
+ {
+ dynamic slideObj = slide;
+ presentation = slideObj.Parent;
+ return presentation as Presentation;
+ }
+ }
+ }
}
}
- catch (COMException comEx)
- {
- var hr = (uint)comEx.HResult;
- if (hr == 0x80048240) // Integer out of range
- {
- // 放映窗口已不存在，返回null
- return null;
- }
- throw; // 重新抛出其他COM异常
- }
}
- // 如果不在放映模式，获取活动窗口的演示文稿
- if (PPTApplication.ActiveWindow?.Presentation != null)
+ activeWindow = PPTApplication.ActiveWindow;
+ if (activeWindow != null)
{
- return PPTApplication.ActiveWindow.Presentation;
+ dynamic aw = activeWindow;
+ presentation = aw.Presentation;
+ if (presentation != null)
+ {
+ return presentation as Presentation;
+ }
}
- // 如果没有活动窗口，返回当前演示文稿
return CurrentPresentation;
}
catch (COMException comEx)
@@ -966,9 +1209,12 @@ namespace Ink_Canvas.Helpers
var hr = (uint)comEx.HResult;
if (hr == 0x8001010E || hr == 0x80004005)
{
- // COM对象已失效，触发断开连接
DisconnectFromPPT();
}
+ if (hr == 0x80048240)
+ {
+ return null;
+ }
LogHelper.WriteLogToFile($"获取当前活跃演示文稿失败: {comEx.Message}", LogHelper.LogType.Warning);
return CurrentPresentation;
}
@@ -977,6 +1223,18 @@ namespace Ink_Canvas.Helpers
LogHelper.WriteLogToFile($"获取当前活跃演示文稿失败: {ex}", LogHelper.LogType.Error);
return CurrentPresentation;
}
+ finally
+ {
+ if (presentation != null && !ReferenceEquals(presentation, CurrentPresentation))
+ {
+ SafeReleaseComObject(presentation);
+ }
+ SafeReleaseComObject(slide);
+ SafeReleaseComObject(view);
+ SafeReleaseComObject(slideShowWindow);
+ SafeReleaseComObject(slideShowWindows);
+ SafeReleaseComObject(activeWindow);
+ }
}
///
@@ -984,28 +1242,61 @@ namespace Ink_Canvas.Helpers
///
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;
- // 如果在放映模式，获取放映窗口的当前幻灯片编号
- if (IsInSlideShow && PPTApplication.SlideShowWindows.Count > 0)
+ if (IsInSlideShow)
{
- var slideShowWindow = PPTApplication.SlideShowWindows[1];
- if (slideShowWindow?.View != null)
+ slideShowWindows = PPTApplication.SlideShowWindows;
+ if (slideShowWindows != null)
{
- return slideShowWindow.View.CurrentShowPosition;
+ 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;
+ }
+ }
+ }
}
}
- // 如果不在放映模式，获取活动窗口的当前幻灯片编号
- if (PPTApplication.ActiveWindow?.Selection?.SlideRange?.SlideNumber > 0)
+ activeWindow = PPTApplication.ActiveWindow;
+ if (activeWindow != null)
{
- return PPTApplication.ActiveWindow.Selection.SlideRange.SlideNumber;
+ 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;
+ }
+ }
+ }
}
- // 如果CurrentSlide存在，尝试获取其编号
if (CurrentSlide != null && Marshal.IsComObject(CurrentSlide))
{
return CurrentSlide.SlideNumber;
@@ -1018,7 +1309,6 @@ namespace Ink_Canvas.Helpers
var hr = (uint)comEx.HResult;
if (hr == 0x8001010E || hr == 0x80004005)
{
- // COM对象已失效，触发断开连接
DisconnectFromPPT();
}
return 0;
@@ -1027,6 +1317,15 @@ namespace Ink_Canvas.Helpers
{
return 0;
}
+ finally
+ {
+ SafeReleaseComObject(slideRange);
+ SafeReleaseComObject(selection);
+ SafeReleaseComObject(view);
+ SafeReleaseComObject(slideShowWindow);
+ SafeReleaseComObject(slideShowWindows);
+ SafeReleaseComObject(activeWindow);
+ }
}
public string GetPresentationName()
@@ -1083,6 +1382,9 @@ namespace Ink_Canvas.Helpers
public bool TryShowSlideNavigation()
{
+ object slideShowWindows = null;
+ object slideShowWindow = null;
+ object slideNavigation = null;
try
{
LogHelper.WriteLogToFile($"尝试显示幻灯片导航 - 连接状态: {IsConnected}, 放映状态: {IsInSlideShow}", LogHelper.LogType.Trace);
@@ -1099,44 +1401,50 @@ namespace Ink_Canvas.Helpers
return false;
}
- var slideShowWindow = PPTApplication.SlideShowWindows[1];
- if (slideShowWindow == null)
+ slideShowWindows = PPTApplication.SlideShowWindows;
+ if (slideShowWindows != null)
{
- LogHelper.WriteLogToFile("幻灯片放映窗口为空", LogHelper.LogType.Warning);
- return false;
- }
-
- // 检查是否为WPS，WPS可能不支持SlideNavigation
- try
- {
- if (slideShowWindow.SlideNavigation != null)
+ dynamic ssw = slideShowWindows;
+ slideShowWindow = ssw[1];
+ if (slideShowWindow == null)
{
- slideShowWindow.SlideNavigation.Visible = true;
- LogHelper.WriteLogToFile("成功显示幻灯片导航（PowerPoint模式）", LogHelper.LogType.Event);
- return true;
- }
-
- LogHelper.WriteLogToFile("SlideNavigation对象为空，可能是WPS不支持此功能", LogHelper.LogType.Warning);
- return false;
- }
- catch (COMException comEx)
- {
- var hr = (uint)comEx.HResult;
- // 0x80020006: 未知名称 - WPS可能不支持SlideNavigation
- if (hr == 0x80020006)
- {
- LogHelper.WriteLogToFile("WPS不支持SlideNavigation功能", LogHelper.LogType.Warning);
+ LogHelper.WriteLogToFile("幻灯片放映窗口为空", LogHelper.LogType.Warning);
return false;
}
- throw; // 重新抛出其他COM异常
+
+ try
+ {
+ dynamic sswObj = slideShowWindow;
+ slideNavigation = sswObj.SlideNavigation;
+ if (slideNavigation != null)
+ {
+ dynamic sn = slideNavigation;
+ sn.Visible = true;
+ LogHelper.WriteLogToFile("成功显示幻灯片导航（PowerPoint模式）", LogHelper.LogType.Event);
+ return true;
+ }
+
+ LogHelper.WriteLogToFile("SlideNavigation对象为空，可能是WPS不支持此功能", LogHelper.LogType.Warning);
+ return false;
+ }
+ catch (COMException comEx)
+ {
+ var hr = (uint)comEx.HResult;
+ if (hr == 0x80020006)
+ {
+ LogHelper.WriteLogToFile("WPS不支持SlideNavigation功能", LogHelper.LogType.Warning);
+ return false;
+ }
+ throw;
+ }
}
+ return false;
}
catch (COMException comEx)
{
var hr = (uint)comEx.HResult;
if (hr == 0x8001010E || hr == 0x80004005)
{
- // COM对象已失效，触发断开连接
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"显示幻灯片导航COM异常: {comEx.Message} (HRESULT: 0x{hr:X8})", LogHelper.LogType.Error);
@@ -1147,6 +1455,12 @@ namespace Ink_Canvas.Helpers
LogHelper.WriteLogToFile($"显示幻灯片导航失败: {ex}", LogHelper.LogType.Error);
return false;
}
+ finally
+ {
+ SafeReleaseComObject(slideNavigation);
+ SafeReleaseComObject(slideShowWindow);
+ SafeReleaseComObject(slideShowWindows);
+ }
}
#endregion
diff --git a/Ink Canvas/Helpers/PPTROTConnectionHelper.cs b/Ink Canvas/Helpers/PPTROTConnectionHelper.cs
index 86ff267d..c30b75b4 100644
--- a/Ink Canvas/Helpers/PPTROTConnectionHelper.cs
+++ b/Ink Canvas/Helpers/PPTROTConnectionHelper.cs
@@ -71,28 +71,39 @@ namespace Ink_Canvas.Helpers
{
try
{
- var pptApp = bestApp as Microsoft.Office.Interop.PowerPoint.Application;
+ Microsoft.Office.Interop.PowerPoint.Application pptApp = bestApp as Microsoft.Office.Interop.PowerPoint.Application;
+
if (pptApp != null)
{
- var _ = pptApp.Name;
- LogHelper.WriteLogToFile($"通过 ROT 成功连接到 PowerPoint (优先级: {bestPriority})", LogHelper.LogType.Event);
- return pptApp;
+ try
+ {
+ var nameObj = pptApp.GetType().InvokeMember("Name", BindingFlags.GetProperty, null, pptApp, null);
+ SafeReleaseComObject(nameObj);
+ LogHelper.WriteLogToFile($"通过 ROT 成功连接到 PowerPoint (优先级: {bestPriority})", LogHelper.LogType.Event);
+ return pptApp;
+ }
+ catch (Exception ex)
+ {
+ LogHelper.WriteLogToFile($"ROT 连接验证失败: {ex.Message}", LogHelper.LogType.Warning);
+ SafeReleaseComObject(bestApp);
+ return null;
+ }
}
else
{
- dynamic dynApp = bestApp;
- var name = dynApp.Name;
- LogHelper.WriteLogToFile($"通过 ROT 成功连接到 PowerPoint (dynamic, 优先级: {bestPriority})", LogHelper.LogType.Event);
- return bestApp as Microsoft.Office.Interop.PowerPoint.Application;
+ SafeReleaseComObject(bestApp);
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROT 连接验证失败: {ex.Message}", LogHelper.LogType.Warning);
SafeReleaseComObject(bestApp);
- return null;
}
}
+ else if (bestApp != null)
+ {
+ SafeReleaseComObject(bestApp);
+ }
LogHelper.WriteLogToFile("通过 ROT 未找到可用的 PowerPoint 应用程序", LogHelper.LogType.Trace);
return null;