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add:PPT联动备用方法

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CJKmkp
2026-01-10 20:38:55 +08:00
parent be6eb73671
commit fb914734c8
2 changed files with 462 additions and 137 deletions
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Ink Canvas/Helpers/PPTManager.cs
+442 -128
View File
@@ -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;
}
}
/// <summary>
/// 安全释放COM对象
/// </summary>
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
}
/// <summary>
/// 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
/// </summary>
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);
}
}
/// <summary>
@@ -984,28 +1242,61 @@ namespace Ink_Canvas.Helpers
/// </summary>
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($"显示幻灯片导航失败: {ex}", LogHelper.LogType.Error);
return false;
}
finally
{
SafeReleaseComObject(slideNavigation);
SafeReleaseComObject(slideShowWindow);
SafeReleaseComObject(slideShowWindows);
}
}
#endregion
Ink Canvas/Helpers/PPTROTConnectionHelper.cs
+20 -9
View File
@@ -71,28 +71,39 @@ namespace Ink_Canvas.Helpers
{
try
{
var pptApp = bestApp as Microsoft.Office.Interop.PowerPoint.Application;
Microsoft.Office.Interop.PowerPoint.Application pptApp = bestApp as Microsoft.Office.Interop.PowerPoint.Application;
if (pptApp != null)
{
var _ = pptApp.Name;
LogHelper.WriteLogToFile($"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;