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improve:PPT联动

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CJKmkp
2026-02-12 22:53:05 +08:00
parent 4a2d015b97
commit 418810d542
1 changed files with 233 additions and 218 deletions
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Ink Canvas/Helpers/ROTPPTManager.cs
+232 -217
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@@ -8,6 +8,9 @@ using Timer = System.Timers.Timer;
namespace Ink_Canvas.Helpers
{
/// <summary>
/// 基于 ROT 的 PPT 联动管理器实现。
/// </summary>
public class ROTPPTManager : IPPTLinkManager
{
#region Events
@@ -22,7 +25,7 @@ namespace Ink_Canvas.Helpers
#region Properties
/// <summary>
/// 当前 PowerPoint 应用程序实例（通过 ROT 获取）。
/// 通过 ROT 获取到的 PowerPoint.Application 实例。
/// </summary>
public object PPTApplication => _pptApplication;
@@ -35,8 +38,9 @@ namespace Ink_Canvas.Helpers
if (_pptApplication == null) return false;
if (!Marshal.IsComObject(_pptApplication)) return false;
// 访问简单属性验证 COM 是否仍然有效
var _ = _pptApplication.Name;
// 访问 Name 属性验证 COM 是否仍然有效
dynamic app = _pptApplication;
var _ = app.Name;
return true;
}
catch (COMException comEx)
@@ -66,7 +70,8 @@ namespace Ink_Canvas.Helpers
{
if (_pptApplication == null || !Marshal.IsComObject(_pptApplication)) return false;
slideShowWindows = _pptApplication.SlideShowWindows;
dynamic app = _pptApplication;
slideShowWindows = app.SlideShowWindows;
if (slideShowWindows == null) return false;
dynamic ssw = slideShowWindows;
@@ -100,12 +105,12 @@ namespace Ink_Canvas.Helpers
{
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"检查 ROT PPT 放映状态失败: {comEx.Message} (HR: 0x{hr:X8})", LogHelper.LogType.Warning);
LogHelper.WriteLogToFile($"[ROT] 检查 PPT 放映状态失败: {comEx.Message} (HR: 0x{hr:X8})", LogHelper.LogType.Warning);
return false;
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"检查 ROT PPT 放映状态时发生意外错误: {ex}", LogHelper.LogType.Warning);
LogHelper.WriteLogToFile($"[ROT] 检查 PPT 放映状态时发生意外错误: {ex}", LogHelper.LogType.Warning);
return false;
}
finally
@@ -119,14 +124,43 @@ namespace Ink_Canvas.Helpers
public bool IsSupportWPS { get; set; } = false;
public int SlidesCount { get; private set; }
/// <summary>
/// 当前演示文稿的总页数（每次按需计算，不缓存 COM 对象）。
/// </summary>
public int SlidesCount
{
get
{
object pres = null;
object slides = null;
try
{
pres = GetCurrentActivePresentation();
if (pres == null) return 0;
dynamic dp = pres;
slides = dp.Slides;
if (slides == null) return 0;
dynamic ds = slides;
return (int)ds.Count;
}
catch
{
return 0;
}
finally
{
SafeReleaseComObject(slides);
SafeReleaseComObject(pres);
}
}
}
#endregion
#region Private Fields
private Microsoft.Office.Interop.PowerPoint.Application _pptApplication;
private Presentation _currentPresentation;
private Slides _currentSlides;
private Slide _currentSlide;
// 唯一持久化的 COM 对象字段：PPT 应用程序实例
private object _pptApplication;
private Timer _connectionCheckTimer;
private Timer _slideShowStateCheckTimer;
@@ -160,7 +194,7 @@ namespace Ink_Canvas.Helpers
_connectionCheckTimer?.Start();
_slideShowStateCheckTimer?.Start();
LogHelper.WriteLogToFile("ROTPPTManager 监控已启动", LogHelper.LogType.Trace);
LogHelper.WriteLogToFile("[ROT] PPT 监控已启动", LogHelper.LogType.Trace);
}
public void StopMonitoring()
@@ -168,7 +202,7 @@ namespace Ink_Canvas.Helpers
_connectionCheckTimer?.Stop();
_slideShowStateCheckTimer?.Stop();
DisconnectFromPPT();
LogHelper.WriteLogToFile("ROTPPTManager 监控已停止", LogHelper.LogType.Trace);
LogHelper.WriteLogToFile("[ROT] PPT 监控已停止", LogHelper.LogType.Trace);
}
#endregion
@@ -184,7 +218,7 @@ namespace Ink_Canvas.Helpers
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 连接检查失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] PPT 连接检查失败: {ex}", LogHelper.LogType.Error);
}
}
@@ -199,13 +233,10 @@ namespace Ink_Canvas.Helpers
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 放映状态检查失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] PPT 放映状态检查失败: {ex}", LogHelper.LogType.Error);
}
}
/// <summary>
/// 使用 ROT 尝试连接到 PowerPoint。
/// </summary>
private void CheckAndConnectToPPTViaRot()
{
if (_isModuleUnloading) return;
@@ -216,36 +247,36 @@ namespace Ink_Canvas.Helpers
{
if (_isModuleUnloading) return;
var pptApp = PPTROTConnectionHelper.TryConnectViaROT(IsSupportWPS);
// 使用 ROT 获取当前最佳 PPT 实例
var bestApp = PPTROTConnectionHelper.TryConnectViaROT(IsSupportWPS);
if (pptApp != null && _pptApplication == null)
if (bestApp != null && _pptApplication == null)
{
// 从未连接 -> 连接
ConnectToPPT(pptApp);
ConnectToPPT(bestApp);
}
else if (pptApp == null && _pptApplication != null)
else if (bestApp == null && _pptApplication != null)
{
// 原来有，现在没有 -> 断开
DisconnectFromPPT();
}
else if (pptApp != null && _pptApplication != null)
else if (bestApp != null && _pptApplication != null)
{
// 已连接，检查是否切换到了另一份 PPT
if (!PPTROTConnectionHelper.AreComObjectsEqual(_pptApplication, pptApp))
if (!PPTROTConnectionHelper.AreComObjectsEqual(_pptApplication, bestApp))
{
DisconnectFromPPT();
ConnectToPPT(pptApp);
ConnectToPPT(bestApp);
}
else
{
// 相同实例，释放多余引用
PPTROTConnectionHelper.SafeReleaseComObject(pptApp);
PPTROTConnectionHelper.SafeReleaseComObject(bestApp);
}
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 连接检查异常: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] PPT 连接检查异常: {ex}", LogHelper.LogType.Error);
if (_pptApplication != null)
{
DisconnectFromPPT();
@@ -269,56 +300,64 @@ namespace Ink_Canvas.Helpers
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 检查 PPT 放映状态异常: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 检查 PPT 放映状态异常: {ex}", LogHelper.LogType.Error);
}
}
private void ConnectToPPT(Microsoft.Office.Interop.PowerPoint.Application pptApp)
private void ConnectToPPT(object appObj)
{
try
{
_pptApplication = pptApp;
_pptApplication = appObj;
// 在 UI 线程上注册事件
// 在 UI 线程上注册事件（使用 Interop 类型做内部绑定，不向外泄露）
Application.Current?.Dispatcher?.Invoke(() =>
{
try
{
_pptApplication.PresentationOpen += OnPresentationOpenInternal;
_pptApplication.PresentationClose += OnPresentationCloseInternal;
_pptApplication.SlideShowBegin += OnSlideShowBeginInternal;
_pptApplication.SlideShowNextSlide += OnSlideShowNextSlideInternal;
_pptApplication.SlideShowEnd += OnSlideShowEndInternal;
var app = _pptApplication as Microsoft.Office.Interop.PowerPoint.Application;
if (app == null) return;
LogHelper.WriteLogToFile("ROTPPTManager 已注册 PPT 事件", LogHelper.LogType.Trace);
app.PresentationOpen += OnPresentationOpenInternal;
app.PresentationClose += OnPresentationCloseInternal;
app.SlideShowBegin += OnSlideShowBeginInternal;
app.SlideShowNextSlide += OnSlideShowNextSlideInternal;
app.SlideShowEnd += OnSlideShowEndInternal;
LogHelper.WriteLogToFile("[ROT] PPT 事件注册成功", LogHelper.LogType.Trace);
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 注册 PPT 事件失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] PPT 事件注册失败: {ex}", LogHelper.LogType.Error);
throw;
}
}, DispatcherPriority.Normal);
UpdateCurrentPresentationInfo();
// 连接成功后暂停频繁的连接检查，由状态定时器维持
// 停止频繁的连接检查，由状态定时器维持
_connectionCheckTimer?.Stop();
PPTConnectionChanged?.Invoke(true);
LogHelper.WriteLogToFile("ROTPPTManager 成功连接到 PPT 应用程序", LogHelper.LogType.Event);
LogHelper.WriteLogToFile("[ROT] 成功连接到 PPT 应用程序", LogHelper.LogType.Event);
if (IsInSlideShow && _pptApplication.SlideShowWindows.Count > 0)
// 如果已在放映中，根据当前状态触发一次开始事件
if (IsInSlideShow)
{
OnSlideShowBeginInternal(_pptApplication.SlideShowWindows[1]);
try
{
var app = _pptApplication as Microsoft.Office.Interop.PowerPoint.Application;
if (app != null && app.SlideShowWindows.Count > 0)
{
OnSlideShowBeginInternal(app.SlideShowWindows[1]);
}
else if (_currentPresentation != null)
}
catch
{
OnPresentationOpenInternal(_currentPresentation);
}
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 连接 PPT 应用程序失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 连接 PPT 应用程序失败: {ex}", LogHelper.LogType.Error);
_pptApplication = null;
}
}
@@ -337,15 +376,19 @@ namespace Ink_Canvas.Helpers
{
try
{
_pptApplication.PresentationOpen -= OnPresentationOpenInternal;
_pptApplication.PresentationClose -= OnPresentationCloseInternal;
_pptApplication.SlideShowBegin -= OnSlideShowBeginInternal;
_pptApplication.SlideShowNextSlide -= OnSlideShowNextSlideInternal;
_pptApplication.SlideShowEnd -= OnSlideShowEndInternal;
var app = _pptApplication as Microsoft.Office.Interop.PowerPoint.Application;
if (app != null)
{
app.PresentationOpen -= OnPresentationOpenInternal;
app.PresentationClose -= OnPresentationCloseInternal;
app.SlideShowBegin -= OnSlideShowBeginInternal;
app.SlideShowNextSlide -= OnSlideShowNextSlideInternal;
app.SlideShowEnd -= OnSlideShowEndInternal;
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 取消 PPT 事件注册异常: {ex}", LogHelper.LogType.Warning);
LogHelper.WriteLogToFile($"[ROT] 取消 PPT 事件注册异常: {ex}", LogHelper.LogType.Warning);
LogHelper.WriteLogToFile(ex.ToString(), LogHelper.LogType.Trace);
}
}, DispatcherPriority.Normal);
@@ -353,13 +396,9 @@ namespace Ink_Canvas.Helpers
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 取消 PPT 事件注册失败: {ex}", LogHelper.LogType.Warning);
LogHelper.WriteLogToFile($"[ROT] 取消 PPT 事件注册失败: {ex}", LogHelper.LogType.Warning);
}
SafeReleaseComObject(_currentSlide);
SafeReleaseComObject(_currentSlides);
SafeReleaseComObject(_currentPresentation);
if (Marshal.IsComObject(_pptApplication))
{
try
@@ -382,10 +421,6 @@ namespace Ink_Canvas.Helpers
}
_pptApplication = null;
_currentPresentation = null;
_currentSlides = null;
_currentSlide = null;
SlidesCount = 0;
GC.Collect();
GC.WaitForPendingFinalizers();
@@ -396,10 +431,9 @@ namespace Ink_Canvas.Helpers
_slideShowStateCheckTimer?.Stop();
PPTConnectionChanged?.Invoke(false);
LogHelper.WriteLogToFile("[ROT] 已断开 PPT 连接", LogHelper.LogType.Event);
LogHelper.WriteLogToFile("ROTPPTManager 已断开 PPT 连接", LogHelper.LogType.Event);
// 一段时间后重新尝试连接
// 一段时间后恢复监控状态
System.Threading.ThreadPool.QueueUserWorkItem(_ =>
{
try
@@ -416,38 +450,33 @@ namespace Ink_Canvas.Helpers
_connectionCheckTimer?.Start();
_slideShowStateCheckTimer?.Start();
LogHelper.WriteLogToFile("ROTPPTManager 联动模块已重新进入监控状态", LogHelper.LogType.Trace);
LogHelper.WriteLogToFile("[ROT] PPT 联动模块已重新进入监控状态", LogHelper.LogType.Trace);
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 重新进入监控状态失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 重新进入监控状态失败: {ex}", LogHelper.LogType.Error);
_isModuleUnloading = false;
}
});
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 断开 PPT 连接失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 断开 PPT 连接失败: {ex}", LogHelper.LogType.Error);
_isModuleUnloading = false;
}
}
#endregion
#region PPT Event Handlers
#region PPT Event Handlers (internal, strong-typed)
private void OnPresentationOpenInternal(Presentation pres)
{
try
{
_currentPresentation = pres;
_currentSlides = pres.Slides;
_currentSlide = null;
SlidesCount = _currentSlides?.Count ?? 0;
PresentationOpen?.Invoke(pres);
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 处理演示文稿打开事件失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 处理演示文稿打开事件失败: {ex}", LogHelper.LogType.Error);
}
}
@@ -456,18 +485,6 @@ namespace Ink_Canvas.Helpers
try
{
PresentationClose?.Invoke(pres);
if (_currentPresentation != null && pres != null && ReferenceEquals(_currentPresentation, pres))
{
SafeReleaseComObject(_currentSlide);
SafeReleaseComObject(_currentSlides);
SafeReleaseComObject(_currentPresentation);
_currentPresentation = null;
_currentSlides = null;
_currentSlide = null;
SlidesCount = 0;
}
}
catch (COMException comEx)
{
@@ -486,18 +503,11 @@ namespace Ink_Canvas.Helpers
{
try
{
if (wn?.Presentation != null)
{
_currentPresentation = wn.Presentation;
_currentSlides = _currentPresentation.Slides;
SlidesCount = _currentSlides?.Count ?? 0;
}
SlideShowBegin?.Invoke(wn);
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 处理放映开始事件失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 处理放映开始事件失败: {ex}", LogHelper.LogType.Error);
}
}
@@ -505,23 +515,11 @@ namespace Ink_Canvas.Helpers
{
try
{
if (wn?.View != null)
{
try
{
_currentSlide = wn.View.Slide;
}
catch
{
_currentSlide = null;
}
}
SlideShowNextSlide?.Invoke(wn);
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 处理放映翻页事件失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 处理放映翻页事件失败: {ex}", LogHelper.LogType.Error);
}
}
@@ -533,7 +531,7 @@ namespace Ink_Canvas.Helpers
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 处理放映结束事件失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 处理放映结束事件失败: {ex}", LogHelper.LogType.Error);
}
}
#endregion
@@ -541,12 +539,26 @@ namespace Ink_Canvas.Helpers
#region IPPTLinkManager Methods
public bool TryStartSlideShow()
{
object pres = null;
try
{
if (!IsConnected || _currentPresentation == null || _pptApplication == null) return false;
if (!Marshal.IsComObject(_pptApplication) || !Marshal.IsComObject(_currentPresentation)) return false;
if (!IsConnected || _pptApplication == null) return false;
if (!Marshal.IsComObject(_pptApplication)) return false;
_currentPresentation.SlideShowSettings.Run();
dynamic app = _pptApplication;
try
{
pres = app.ActivePresentation;
}
catch
{
pres = null;
}
if (pres == null || !Marshal.IsComObject(pres)) return false;
dynamic dp = pres;
dp.SlideShowSettings.Run();
return true;
}
catch (COMException comEx)
@@ -556,14 +568,18 @@ namespace Ink_Canvas.Helpers
{
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"ROTPPTManager 开始幻灯片放映失败: {comEx.Message}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 开始幻灯片放映失败: {comEx.Message}", LogHelper.LogType.Error);
return false;
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 开始幻灯片放映失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 开始幻灯片放映失败: {ex}", LogHelper.LogType.Error);
return false;
}
finally
{
SafeReleaseComObject(pres);
}
}
public bool TryEndSlideShow()
@@ -576,19 +592,13 @@ namespace Ink_Canvas.Helpers
if (!IsConnected || _pptApplication == null) return false;
if (!Marshal.IsComObject(_pptApplication)) return false;
slideShowWindows = _pptApplication.SlideShowWindows;
dynamic app = _pptApplication;
slideShowWindows = app.SlideShowWindows;
if (slideShowWindows != null)
{
dynamic ssw = slideShowWindows;
int count = 0;
try
{
count = ssw.Count;
}
catch
{
count = 0;
}
try { count = ssw.Count; } catch { count = 0; }
for (int i = 1; i <= count; i++)
{
@@ -608,7 +618,7 @@ namespace Ink_Canvas.Helpers
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 结束第 {i} 个放映窗口失败: {ex}", LogHelper.LogType.Warning);
LogHelper.WriteLogToFile($"[ROT] 结束第 {i} 个放映窗口失败: {ex}", LogHelper.LogType.Warning);
}
finally
{
@@ -629,12 +639,12 @@ namespace Ink_Canvas.Helpers
{
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"ROTPPTManager 结束幻灯片放映失败: {comEx.Message}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 结束幻灯片放映失败: {comEx.Message}", LogHelper.LogType.Error);
return false;
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 结束幻灯片放映失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 结束幻灯片放映失败: {ex}", LogHelper.LogType.Error);
return false;
}
finally
@@ -655,7 +665,8 @@ namespace Ink_Canvas.Helpers
if (!IsConnected || !IsInSlideShow || _pptApplication == null) return false;
if (!Marshal.IsComObject(_pptApplication)) return false;
slideShowWindows = _pptApplication.SlideShowWindows;
dynamic app = _pptApplication;
slideShowWindows = app.SlideShowWindows;
if (slideShowWindows != null)
{
dynamic ssw = slideShowWindows;
@@ -682,12 +693,12 @@ namespace Ink_Canvas.Helpers
{
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"ROTPPTManager 跳转到第 {slideNumber} 页失败: {comEx.Message}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 跳转到第 {slideNumber} 页失败: {comEx.Message}", LogHelper.LogType.Error);
return false;
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 跳转到第 {slideNumber} 页失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 跳转到第 {slideNumber} 页失败: {ex}", LogHelper.LogType.Error);
return false;
}
finally
@@ -708,7 +719,8 @@ namespace Ink_Canvas.Helpers
if (!IsConnected || !IsInSlideShow || _pptApplication == null) return false;
if (!Marshal.IsComObject(_pptApplication)) return false;
slideShowWindows = _pptApplication.SlideShowWindows;
dynamic app = _pptApplication;
slideShowWindows = app.SlideShowWindows;
if (slideShowWindows != null)
{
dynamic ssw = slideShowWindows;
@@ -735,12 +747,12 @@ namespace Ink_Canvas.Helpers
{
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"ROTPPTManager 切换到下一页失败: {comEx.Message}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 切换到下一页失败: {comEx.Message}", LogHelper.LogType.Error);
return false;
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 切换到下一页失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 切换到下一页失败: {ex}", LogHelper.LogType.Error);
return false;
}
finally
@@ -761,7 +773,8 @@ namespace Ink_Canvas.Helpers
if (!IsConnected || !IsInSlideShow || _pptApplication == null) return false;
if (!Marshal.IsComObject(_pptApplication)) return false;
slideShowWindows = _pptApplication.SlideShowWindows;
dynamic app = _pptApplication;
slideShowWindows = app.SlideShowWindows;
if (slideShowWindows != null)
{
dynamic ssw = slideShowWindows;
@@ -788,12 +801,12 @@ namespace Ink_Canvas.Helpers
{
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"ROTPPTManager 切换到上一页失败: {comEx.Message}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 切换到上一页失败: {comEx.Message}", LogHelper.LogType.Error);
return false;
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 切换到上一页失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 切换到上一页失败: {ex}", LogHelper.LogType.Error);
return false;
}
finally
@@ -814,7 +827,8 @@ namespace Ink_Canvas.Helpers
if (!IsConnected || _pptApplication == null) return 0;
if (!Marshal.IsComObject(_pptApplication)) return 0;
slideShowWindows = _pptApplication.SlideShowWindows;
dynamic app = _pptApplication;
slideShowWindows = app.SlideShowWindows;
if (slideShowWindows != null)
{
dynamic ssw = slideShowWindows;
@@ -826,7 +840,7 @@ namespace Ink_Canvas.Helpers
if (view != null)
{
dynamic viewObj = view;
return viewObj.CurrentShowPosition;
return (int)viewObj.CurrentShowPosition;
}
}
}
@@ -839,12 +853,12 @@ namespace Ink_Canvas.Helpers
{
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"ROTPPTManager 获取当前页码失败: {comEx.Message}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 获取当前页码失败: {comEx.Message}", LogHelper.LogType.Error);
return 0;
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 获取当前页码失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 获取当前页码失败: {ex}", LogHelper.LogType.Error);
return 0;
}
finally
@@ -857,16 +871,24 @@ namespace Ink_Canvas.Helpers
public string GetPresentationName()
{
object pres = null;
try
{
var pres = GetCurrentActivePresentation() as Presentation;
return pres?.Name ?? "";
pres = GetCurrentActivePresentation();
if (pres == null) return "";
dynamic dp = pres;
return (string)dp.Name;
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 获取演示文稿名称失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 获取演示文稿名称失败: {ex}", LogHelper.LogType.Error);
return "";
}
finally
{
SafeReleaseComObject(pres);
}
}
public bool TryShowSlideNavigation()
@@ -876,28 +898,29 @@ namespace Ink_Canvas.Helpers
object slideNavigation = null;
try
{
LogHelper.WriteLogToFile($"ROTPPTManager 尝试显示幻灯片导航 - 连接状态: {IsConnected}, 放映状态: {IsInSlideShow}", LogHelper.LogType.Trace);
LogHelper.WriteLogToFile($"[ROT] 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("ROTPPTManager: PPT 未连接或未在放映状态", LogHelper.LogType.Warning);
LogHelper.WriteLogToFile("[ROT] PPT 未连接或未在放映状态", LogHelper.LogType.Warning);
return false;
}
if (!Marshal.IsComObject(_pptApplication))
{
LogHelper.WriteLogToFile("ROTPPTManager: PPT 应用程序 COM 对象无效", LogHelper.LogType.Warning);
LogHelper.WriteLogToFile("[ROT] PPT 应用程序 COM 对象无效", LogHelper.LogType.Warning);
return false;
}
slideShowWindows = _pptApplication.SlideShowWindows;
dynamic app = _pptApplication;
slideShowWindows = app.SlideShowWindows;
if (slideShowWindows != null)
{
dynamic ssw = slideShowWindows;
slideShowWindow = ssw[1];
if (slideShowWindow == null)
{
LogHelper.WriteLogToFile("ROTPPTManager: 幻灯片放映窗口为空", LogHelper.LogType.Warning);
LogHelper.WriteLogToFile("[ROT] 幻灯片放映窗口为空", LogHelper.LogType.Warning);
return false;
}
@@ -909,11 +932,11 @@ namespace Ink_Canvas.Helpers
{
dynamic sn = slideNavigation;
sn.Visible = true;
LogHelper.WriteLogToFile("ROTPPTManager: 成功显示幻灯片导航", LogHelper.LogType.Event);
LogHelper.WriteLogToFile("[ROT] 成功显示幻灯片导航", LogHelper.LogType.Event);
return true;
}
LogHelper.WriteLogToFile("ROTPPTManager: SlideNavigation 对象为空，可能当前环境不支持", LogHelper.LogType.Warning);
LogHelper.WriteLogToFile("[ROT] SlideNavigation 对象为空，可能当前环境不支持", LogHelper.LogType.Warning);
return false;
}
catch (COMException comEx)
@@ -921,7 +944,7 @@ namespace Ink_Canvas.Helpers
var hr = (uint)comEx.HResult;
if (hr == 0x80020006)
{
LogHelper.WriteLogToFile("ROTPPTManager: 当前 PPT 实例不支持 SlideNavigation 功能", LogHelper.LogType.Warning);
LogHelper.WriteLogToFile("[ROT] 当前 PPT 实例不支持 SlideNavigation 功能", LogHelper.LogType.Warning);
return false;
}
throw;
@@ -936,12 +959,12 @@ namespace Ink_Canvas.Helpers
{
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"ROTPPTManager 显示幻灯片导航失败: {comEx.Message}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 显示幻灯片导航失败: {comEx.Message}", LogHelper.LogType.Error);
return false;
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 显示幻灯片导航失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 显示幻灯片导航失败: {ex}", LogHelper.LogType.Error);
return false;
}
finally
@@ -954,39 +977,65 @@ namespace Ink_Canvas.Helpers
public object GetCurrentActivePresentation()
{
object pres = null;
object slideShowWindows = null;
object slideShowWindow = null;
object view = null;
object slide = null;
try
{
if (!IsConnected || _pptApplication == null) return null;
if (!Marshal.IsComObject(_pptApplication)) return null;
if (IsInSlideShow && _pptApplication.SlideShowWindows.Count > 0)
dynamic app = _pptApplication;
// 优先使用放映窗口里的当前演示文稿
if (IsInSlideShow)
{
slideShowWindows = app.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;
slide = viewObj.Slide;
if (slide != null)
{
dynamic ds = slide;
pres = ds.Parent;
return pres;
}
}
}
}
}
}
// 其次尝试 ActiveWindow.Presentation
try
{
var slideShowWindow = _pptApplication.SlideShowWindows[1];
if (slideShowWindow?.View != null)
var aw = app.ActiveWindow;
if (aw != null)
{
return (Presentation)slideShowWindow.View.Slide.Parent;
dynamic daw = aw;
pres = daw.Presentation;
if (pres != null) return pres;
}
}
catch (COMException comEx)
{
var hr = (uint)comEx.HResult;
if (hr == 0x80048240)
catch
{
}
return null;
}
throw;
}
}
if (_pptApplication.ActiveWindow?.Presentation != null)
{
return _pptApplication.ActiveWindow.Presentation;
}
return _currentPresentation;
}
catch (COMException comEx)
{
var hr = (uint)comEx.HResult;
@@ -994,59 +1043,26 @@ namespace Ink_Canvas.Helpers
{
DisconnectFromPPT();
}
LogHelper.WriteLogToFile($"ROTPPTManager 获取当前演示文稿失败: {comEx.Message}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 获取当前演示文稿失败: {comEx.Message}", LogHelper.LogType.Error);
return null;
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 获取当前演示文稿失败: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] 获取当前演示文稿失败: {ex}", LogHelper.LogType.Error);
return null;
}
finally
{
SafeReleaseComObject(slide);
SafeReleaseComObject(view);
SafeReleaseComObject(slideShowWindow);
SafeReleaseComObject(slideShowWindows);
// 注意：pres 作为返回值时不在这里释放，由调用方负责（如有需要）
}
}
#endregion
#region Helpers
private void UpdateCurrentPresentationInfo()
{
try
{
if (!IsConnected || _pptApplication == null) return;
if (!Marshal.IsComObject(_pptApplication)) return;
try
{
_currentPresentation = _pptApplication.ActivePresentation;
}
catch
{
_currentPresentation = null;
}
if (_currentPresentation != null)
{
try
{
_currentSlides = _currentPresentation.Slides;
SlidesCount = _currentSlides?.Count ?? 0;
}
catch
{
_currentSlides = null;
SlidesCount = 0;
}
}
else
{
_currentSlides = null;
SlidesCount = 0;
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager 更新当前演示文稿信息失败: {ex}", LogHelper.LogType.Error);
}
}
/// <summary>
/// 安全释放 COM 对象。
/// </summary>
@@ -1077,10 +1093,9 @@ namespace Ink_Canvas.Helpers
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"ROTPPTManager Dispose 异常: {ex}", LogHelper.LogType.Error);
LogHelper.WriteLogToFile($"[ROT] Dispose 异常: {ex}", LogHelper.LogType.Error);
}
}
#endregion
}
}