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improve:PPT联动

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CJKmkp
2026-01-18 02:03:39 +08:00
parent c11ca7a3f7
commit f65341d906
1 changed files with 261 additions and 89 deletions
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Ink Canvas/Helpers/PPTManager.cs
+261 -89
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@@ -29,7 +29,7 @@ namespace Ink_Canvas.Helpers
#endregion #endregion
#region Properties #region Properties
public object PPTApplication { get; private set; } public dynamic PPTApplication { get; private set; }
public dynamic CurrentPresentation { get; private set; } public dynamic CurrentPresentation { get; private set; }
public dynamic CurrentSlides { get; private set; } public dynamic CurrentSlides { get; private set; }
public dynamic CurrentSlide { get; private set; } public dynamic CurrentSlide { get; private set; }
@@ -44,8 +44,7 @@ namespace Ink_Canvas.Helpers
if (!Marshal.IsComObject(PPTApplication)) return false; if (!Marshal.IsComObject(PPTApplication)) return false;
// 尝试访问一个简单的属性来验证连接是否有效 // 尝试访问一个简单的属性来验证连接是否有效
dynamic app = PPTApplication; var _ = PPTApplication.Name;
var _ = app.Name;
return true; return true;
} }
catch (COMException comEx) catch (COMException comEx)
@@ -75,8 +74,7 @@ namespace Ink_Canvas.Helpers
{ {
if (PPTApplication == null || !Marshal.IsComObject(PPTApplication)) return false; if (PPTApplication == null || !Marshal.IsComObject(PPTApplication)) return false;
dynamic app = PPTApplication; slideShowWindows = PPTApplication.SlideShowWindows;
slideShowWindows = app.SlideShowWindows;
if (slideShowWindows == null) return false; if (slideShowWindows == null) return false;
dynamic ssw = slideShowWindows; dynamic ssw = slideShowWindows;
@@ -130,9 +128,9 @@ namespace Ink_Canvas.Helpers
#endregion #endregion
#region Private Fields #region Private Fields
private Timer _connectionCheckTimer; private Thread _monitoringThread;
private Timer _slideShowStateCheckTimer; private bool _shouldStop = false;
private Timer _wpsProcessCheckTimer; private readonly object _monitoringLock = new object();
private Process _wpsProcess; private Process _wpsProcess;
private bool _isModuleUnloading = false; private bool _isModuleUnloading = false;
private bool _hasWpsProcessId; private bool _hasWpsProcessId;
@@ -147,7 +145,7 @@ namespace Ink_Canvas.Helpers
private dynamic _pptActivePresentation; private dynamic _pptActivePresentation;
private dynamic _pptSlideShowWindow; private dynamic _pptSlideShowWindow;
private int _polling = 0; private int _polling = 0;
private bool _forcePolling = false; private bool _forcePolling = true;
private bool _bindingEvents = false; private bool _bindingEvents = false;
private DateTime _updateTime; private DateTime _updateTime;
private int _lastPolledSlideNumber = -1; private int _lastPolledSlideNumber = -1;
@@ -156,36 +154,48 @@ namespace Ink_Canvas.Helpers
#region Constructor & Initialization #region Constructor & Initialization
public PPTManager() public PPTManager()
{ {
InitializeConnectionTimer();
}
private void InitializeConnectionTimer()
{
_connectionCheckTimer = new Timer(500);
_connectionCheckTimer.Elapsed += OnConnectionCheckTimerElapsed;
_connectionCheckTimer.AutoReset = true;
_slideShowStateCheckTimer = new Timer(1000);
_slideShowStateCheckTimer.Elapsed += OnSlideShowStateCheckTimerElapsed;
_slideShowStateCheckTimer.AutoReset = true;
} }
public void StartMonitoring() public void StartMonitoring()
{ {
if (!_disposed) if (_disposed) return;
lock (_monitoringLock)
{ {
_connectionCheckTimer?.Start(); if (_monitoringThread != null && _monitoringThread.IsAlive)
_slideShowStateCheckTimer?.Start(); {
return; // 已经在运行
}
_shouldStop = false;
_monitoringThread = new Thread(PptComService)
{
IsBackground = true,
Name = "PPTMonitoringThread"
};
_monitoringThread.Start();
LogHelper.WriteLogToFile("PPT监控已启动", LogHelper.LogType.Trace); LogHelper.WriteLogToFile("PPT监控已启动", LogHelper.LogType.Trace);
} }
} }
public void StopMonitoring() public void StopMonitoring()
{ {
_connectionCheckTimer?.Stop(); lock (_monitoringLock)
_slideShowStateCheckTimer?.Stop(); {
DisconnectFromPPT(); _shouldStop = true;
LogHelper.WriteLogToFile("PPT监控已停止", LogHelper.LogType.Trace);
if (_monitoringThread != null && _monitoringThread.IsAlive)
{
// 等待线程退出，最多等待2秒
if (!_monitoringThread.Join(2000))
{
LogHelper.WriteLogToFile("等待监控线程退出超时", LogHelper.LogType.Warning);
}
}
DisconnectFromPPT();
LogHelper.WriteLogToFile("PPT监控已停止", LogHelper.LogType.Trace);
}
} }
#endregion #endregion
@@ -287,8 +297,7 @@ namespace Ink_Canvas.Helpers
{ {
try try
{ {
dynamic app = PPTApplication; _pptActivePresentation = PPTApplication.ActivePresentation;
_pptActivePresentation = app.ActivePresentation;
if (_pptActivePresentation != null) if (_pptActivePresentation != null)
{ {
LogHelper.WriteLogToFile("轮询模式：初始化_pptActivePresentation", LogHelper.LogType.Trace); LogHelper.WriteLogToFile("轮询模式：初始化_pptActivePresentation", LogHelper.LogType.Trace);
@@ -326,8 +335,7 @@ namespace Ink_Canvas.Helpers
try try
{ {
dynamic app = PPTApplication; activePresentation = PPTApplication.ActivePresentation;
activePresentation = app.ActivePresentation;
if (activePresentation != null && _pptActivePresentation != null && !PPTROTConnectionHelper.AreComObjectsEqual(_pptActivePresentation, activePresentation)) if (activePresentation != null && _pptActivePresentation != null && !PPTROTConnectionHelper.AreComObjectsEqual(_pptActivePresentation, activePresentation))
{ {
@@ -357,12 +365,11 @@ namespace Ink_Canvas.Helpers
bool isSlideShowActive = false; bool isSlideShowActive = false;
try try
{ {
dynamic app = PPTApplication;
if (activePresentation == null) if (activePresentation == null)
{ {
try try
{ {
activePresentation = app.ActivePresentation; activePresentation = PPTApplication.ActivePresentation;
} }
catch (Exception ex) catch (Exception ex)
{ {
@@ -374,7 +381,7 @@ namespace Ink_Canvas.Helpers
{ {
try try
{ {
dynamic slideShowWindows = app.SlideShowWindows; dynamic slideShowWindows = PPTApplication.SlideShowWindows;
if (slideShowWindows != null && slideShowWindows.Count > 0) if (slideShowWindows != null && slideShowWindows.Count > 0)
{ {
isSlideShowActive = true; isSlideShowActive = true;
@@ -424,13 +431,9 @@ namespace Ink_Canvas.Helpers
if (isSlideShowActive) if (isSlideShowActive)
{ {
// 在轮询模式下，更频繁地检查（每500ms，与定时器同步） if ((DateTime.Now - _updateTime).TotalMilliseconds > 3000 || _forcePolling)
// 否则每3秒检查一次
bool shouldPoll = _forcePolling || (DateTime.Now - _updateTime).TotalMilliseconds > 3000;
if (shouldPoll)
{ {
LogHelper.WriteLogToFile($"开始轮询检查: forcePolling={_forcePolling}, 距离上次更新={(DateTime.Now - _updateTime).TotalMilliseconds}ms", LogHelper.LogType.Trace); LogHelper.WriteLogToFile($"轮询", LogHelper.LogType.Trace);
try try
{ {
@@ -453,7 +456,6 @@ namespace Ink_Canvas.Helpers
{ {
SlidesCount = 0; SlidesCount = 0;
_polling = 0; _polling = 0;
LogHelper.WriteLogToFile("轮询: 无法获取总页数", LogHelper.LogType.Trace);
} }
else else
{ {
@@ -470,10 +472,7 @@ namespace Ink_Canvas.Helpers
if (currentPage >= tempTotalPage) _polling = 1; if (currentPage >= tempTotalPage) _polling = 1;
else _polling = 0; else _polling = 0;
LogHelper.WriteLogToFile($"轮询: 当前页={currentPage}, 总页={tempTotalPage}, 上次页={_lastPolledSlideNumber}, forcePolling={_forcePolling}", LogHelper.LogType.Trace); if (_lastPolledSlideNumber != -1 && currentPage != _lastPolledSlideNumber)
// 在轮询模式下，检测页码变化并触发事件
if (_forcePolling && _lastPolledSlideNumber != -1 && currentPage != _lastPolledSlideNumber)
{ {
try try
{ {
@@ -501,7 +500,7 @@ namespace Ink_Canvas.Helpers
catch (Exception ex) catch (Exception ex)
{ {
SlidesCount = 0; SlidesCount = 0;
LogHelper.WriteLogToFile($"轮询检查异常: {ex.Message}", LogHelper.LogType.Warning); LogHelper.WriteLogToFile($"获取总页数失败: {ex.Message}", LogHelper.LogType.Warning);
} }
finally finally
{ {
@@ -517,17 +516,16 @@ namespace Ink_Canvas.Helpers
{ {
int currentPage = GetCurrentSlideIndex(_pptSlideShowWindow); int currentPage = GetCurrentSlideIndex(_pptSlideShowWindow);
// 在轮询模式下，检测页码变化并触发事件 if (_lastPolledSlideNumber != -1 && currentPage != _lastPolledSlideNumber)
if (_forcePolling && _lastPolledSlideNumber != -1 && currentPage != _lastPolledSlideNumber)
{ {
try try
{ {
LogHelper.WriteLogToFile($"轮询模式检测到页码变化: {_lastPolledSlideNumber} -> {currentPage}", LogHelper.LogType.Trace); LogHelper.WriteLogToFile($"轮询模式检测到页码变化: {_lastPolledSlideNumber} -> {currentPage}，触发事件", LogHelper.LogType.Trace);
SlideShowNextSlide?.Invoke(_pptSlideShowWindow); SlideShowNextSlide?.Invoke(_pptSlideShowWindow);
} }
catch (Exception ex) catch (Exception ex)
{ {
LogHelper.WriteLogToFile($"触发轮询模式幻灯片切换事件失败: {ex.Message}", LogHelper.LogType.Trace); LogHelper.WriteLogToFile($"触发轮询模式幻灯片切换事件失败: {ex.Message}", LogHelper.LogType.Warning);
} }
} }
@@ -683,10 +681,11 @@ namespace Ink_Canvas.Helpers
{ {
try try
{ {
Type appType = typeof(Microsoft.Office.Interop.PowerPoint.Application); // 使用 as 操作符进行类型转换，与 inkeys 保持一致
if (appType.IsInstanceOfType(PPTApplication)) Microsoft.Office.Interop.PowerPoint.Application pptAppForEvents = PPTApplication as Microsoft.Office.Interop.PowerPoint.Application;
if (pptAppForEvents != null)
{ {
Microsoft.Office.Interop.PowerPoint.Application pptAppForEvents = (Microsoft.Office.Interop.PowerPoint.Application)PPTApplication;
pptAppForEvents.SlideShowNextSlide += new EApplication_SlideShowNextSlideEventHandler(OnSlideShowNextSlide); pptAppForEvents.SlideShowNextSlide += new EApplication_SlideShowNextSlideEventHandler(OnSlideShowNextSlide);
pptAppForEvents.SlideShowBegin += new EApplication_SlideShowBeginEventHandler(OnSlideShowBegin); pptAppForEvents.SlideShowBegin += new EApplication_SlideShowBeginEventHandler(OnSlideShowBegin);
pptAppForEvents.SlideShowEnd += new EApplication_SlideShowEndEventHandler(OnSlideShowEnd); pptAppForEvents.SlideShowEnd += new EApplication_SlideShowEndEventHandler(OnSlideShowEnd);
@@ -701,7 +700,6 @@ namespace Ink_Canvas.Helpers
} }
_bindingEvents = true; _bindingEvents = true;
_forcePolling = false;
LogHelper.WriteLogToFile("PPT事件注册成功", LogHelper.LogType.Trace); LogHelper.WriteLogToFile("PPT事件注册成功", LogHelper.LogType.Trace);
} }
@@ -732,6 +730,9 @@ namespace Ink_Canvas.Helpers
LogHelper.WriteLogToFile($"无法注册事件: {ex.Message}", LogHelper.LogType.Warning); LogHelper.WriteLogToFile($"无法注册事件: {ex.Message}", LogHelper.LogType.Warning);
} }
_bindingEvents = false;
_forcePolling = true;
if (_pptActivePresentation != null) if (_pptActivePresentation != null)
{ {
UpdateCurrentPresentationInfo(); UpdateCurrentPresentationInfo();
@@ -773,10 +774,11 @@ namespace Ink_Canvas.Helpers
{ {
try try
{ {
Type appType = typeof(Microsoft.Office.Interop.PowerPoint.Application); // 使用 as 操作符进行类型转换，与 inkeys 保持一致
if (appType.IsInstanceOfType(PPTApplication)) Microsoft.Office.Interop.PowerPoint.Application app = PPTApplication as Microsoft.Office.Interop.PowerPoint.Application;
if (app != null)
{ {
Microsoft.Office.Interop.PowerPoint.Application app = (Microsoft.Office.Interop.PowerPoint.Application)PPTApplication;
app.SlideShowNextSlide -= new EApplication_SlideShowNextSlideEventHandler(OnSlideShowNextSlide); app.SlideShowNextSlide -= new EApplication_SlideShowNextSlideEventHandler(OnSlideShowNextSlide);
app.SlideShowBegin -= new EApplication_SlideShowBeginEventHandler(OnSlideShowBegin); app.SlideShowBegin -= new EApplication_SlideShowBeginEventHandler(OnSlideShowBegin);
app.SlideShowEnd -= new EApplication_SlideShowEndEventHandler(OnSlideShowEnd); app.SlideShowEnd -= new EApplication_SlideShowEndEventHandler(OnSlideShowEnd);
@@ -789,7 +791,6 @@ namespace Ink_Canvas.Helpers
} }
_bindingEvents = false; _bindingEvents = false;
_forcePolling = false;
} }
} }
catch { } catch { }
@@ -840,7 +841,7 @@ namespace Ink_Canvas.Helpers
CurrentSlide = null; CurrentSlide = null;
SlidesCount = 0; SlidesCount = 0;
_polling = 0; _polling = 0;
_forcePolling = false; _forcePolling = true;
_bindingEvents = false; _bindingEvents = false;
GC.Collect(); GC.Collect();
@@ -993,8 +994,7 @@ namespace Ink_Canvas.Helpers
} }
else else
{ {
dynamic app = PPTApplication; activeWindow = PPTApplication.ActiveWindow;
activeWindow = app.ActiveWindow;
if (activeWindow != null) if (activeWindow != null)
{ {
dynamic aw = activeWindow; dynamic aw = activeWindow;
@@ -1095,8 +1095,7 @@ namespace Ink_Canvas.Helpers
{ {
try try
{ {
dynamic app = PPTApplication; _pptActivePresentation = PPTApplication.ActivePresentation;
_pptActivePresentation = app.ActivePresentation;
_updateTime = DateTime.Now; _updateTime = DateTime.Now;
} }
catch { } catch { }
@@ -1122,10 +1121,11 @@ namespace Ink_Canvas.Helpers
{ {
try try
{ {
Type appType = typeof(Microsoft.Office.Interop.PowerPoint.Application); // 使用 as 操作符进行类型转换，与 inkeys 保持一致
if (appType.IsInstanceOfType(PPTApplication)) Microsoft.Office.Interop.PowerPoint.Application app = PPTApplication as Microsoft.Office.Interop.PowerPoint.Application;
if (app != null)
{ {
Microsoft.Office.Interop.PowerPoint.Application app = (Microsoft.Office.Interop.PowerPoint.Application)PPTApplication;
app.SlideShowNextSlide -= new EApplication_SlideShowNextSlideEventHandler(OnSlideShowNextSlide); app.SlideShowNextSlide -= new EApplication_SlideShowNextSlideEventHandler(OnSlideShowNextSlide);
app.SlideShowBegin -= new EApplication_SlideShowBeginEventHandler(OnSlideShowBegin); app.SlideShowBegin -= new EApplication_SlideShowBeginEventHandler(OnSlideShowBegin);
app.SlideShowEnd -= new EApplication_SlideShowEndEventHandler(OnSlideShowEnd); app.SlideShowEnd -= new EApplication_SlideShowEndEventHandler(OnSlideShowEnd);
@@ -1138,7 +1138,6 @@ namespace Ink_Canvas.Helpers
} }
_bindingEvents = false; _bindingEvents = false;
_forcePolling = false;
} }
DisconnectFromPPT(); DisconnectFromPPT();
@@ -1258,8 +1257,7 @@ namespace Ink_Canvas.Helpers
if (IsInSlideShow) if (IsInSlideShow)
{ {
dynamic app = PPTApplication; slideShowWindows = PPTApplication.SlideShowWindows;
slideShowWindows = app.SlideShowWindows;
if (slideShowWindows != null) if (slideShowWindows != null)
{ {
dynamic ssw = slideShowWindows; dynamic ssw = slideShowWindows;
@@ -1343,8 +1341,7 @@ namespace Ink_Canvas.Helpers
{ {
try try
{ {
dynamic app = PPTApplication; object slideShowWindows = PPTApplication.SlideShowWindows;
object slideShowWindows = app.SlideShowWindows;
if (slideShowWindows != null) if (slideShowWindows != null)
{ {
dynamic ssw = slideShowWindows; dynamic ssw = slideShowWindows;
@@ -1407,8 +1404,7 @@ namespace Ink_Canvas.Helpers
{ {
try try
{ {
dynamic app = PPTApplication; object slideShowWindows = PPTApplication.SlideShowWindows;
object slideShowWindows = app.SlideShowWindows;
if (slideShowWindows != null) if (slideShowWindows != null)
{ {
dynamic ssw = slideShowWindows; dynamic ssw = slideShowWindows;
@@ -1469,8 +1465,7 @@ namespace Ink_Canvas.Helpers
if (!IsConnected || !IsInSlideShow || PPTApplication == null) return false; if (!IsConnected || !IsInSlideShow || PPTApplication == null) return false;
if (!Marshal.IsComObject(PPTApplication)) return false; if (!Marshal.IsComObject(PPTApplication)) return false;
dynamic app = PPTApplication; slideShowWindows = PPTApplication.SlideShowWindows;
slideShowWindows = app.SlideShowWindows;
if (slideShowWindows != null) if (slideShowWindows != null)
{ {
dynamic ssw = slideShowWindows; dynamic ssw = slideShowWindows;
@@ -1586,8 +1581,7 @@ namespace Ink_Canvas.Helpers
} }
} }
dynamic app = PPTApplication; activeWindow = PPTApplication.ActiveWindow;
activeWindow = app.ActiveWindow;
if (activeWindow != null) if (activeWindow != null)
{ {
dynamic aw = activeWindow; dynamic aw = activeWindow;
@@ -1701,8 +1695,7 @@ namespace Ink_Canvas.Helpers
} }
} }
dynamic app = PPTApplication; activeWindow = PPTApplication.ActiveWindow;
activeWindow = app.ActiveWindow;
if (activeWindow != null) if (activeWindow != null)
{ {
dynamic aw = activeWindow; dynamic aw = activeWindow;
@@ -1824,8 +1817,7 @@ namespace Ink_Canvas.Helpers
return false; return false;
} }
dynamic app = PPTApplication; slideShowWindows = PPTApplication.SlideShowWindows;
slideShowWindows = app.SlideShowWindows;
if (slideShowWindows != null) if (slideShowWindows != null)
{ {
dynamic ssw = slideShowWindows; dynamic ssw = slideShowWindows;
@@ -1898,12 +1890,11 @@ namespace Ink_Canvas.Helpers
Process wpsProcess = null; Process wpsProcess = null;
// 方法1：通过应用程序路径检测 // 方法1：通过应用程序路径检测
dynamic app = PPTApplication; if (PPTApplication.Path.Contains("Kingsoft\\WPS Office\\") ||
if (app.Path.Contains("Kingsoft\\WPS Office\\") || PPTApplication.Path.Contains("WPS Office\\"))
app.Path.Contains("WPS Office\\"))
{ {
uint processId; uint processId;
GetWindowThreadProcessId((IntPtr)app.HWND, out processId); GetWindowThreadProcessId((IntPtr)PPTApplication.HWND, out processId);
wpsProcess = Process.GetProcessById((int)processId); wpsProcess = Process.GetProcessById((int)processId);
} }
@@ -2159,10 +2150,9 @@ namespace Ink_Canvas.Helpers
{ {
if (PPTApplication != null && Marshal.IsComObject(PPTApplication)) if (PPTApplication != null && Marshal.IsComObject(PPTApplication))
{ {
dynamic app = PPTApplication; if (PPTApplication.SlideShowWindows?.Count > 0)
if (app.SlideShowWindows?.Count > 0)
{ {
pptActWindow = app.SlideShowWindows[1]; pptActWindow = PPTApplication.SlideShowWindows[1];
} }
} }
} }
@@ -2332,6 +2322,9 @@ namespace Ink_Canvas.Helpers
[DllImport("user32.dll")] [DllImport("user32.dll")]
private static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount); private static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
[DllImport("user32.dll")]
private static extern int GetWindowTextLength(IntPtr hWnd);
[DllImport("user32.dll")] [DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)] [return: MarshalAs(UnmanagedType.Bool)]
private static extern bool IsWindowVisible(IntPtr hWnd); private static extern bool IsWindowVisible(IntPtr hWnd);
@@ -2634,6 +2627,185 @@ namespace Ink_Canvas.Helpers
} }
#endregion #endregion
#region Window Handle Methods
/// <summary>
/// 获取PPT窗口句柄
/// </summary>
/// <returns>窗口句柄，如果获取失败返回 IntPtr.Zero</returns>
public IntPtr GetPptHwnd()
{
IntPtr ret = IntPtr.Zero;
// 方法1: 尝试从 SlideShowWindow 获取
ret = GetPptHwndFromSlideShowWindow(_pptSlideShowWindow);
if (ret == IntPtr.Zero)
{
// 方法2: 通过窗口标题匹配获取（备用方法）
try
{
if (_pptActivePresentation != null && PPTApplication != null)
{
dynamic pres = _pptActivePresentation;
string fullName = pres.FullName;
string appName = PPTApplication.Name;
ret = GetPptHwndWin32(fullName, appName);
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"获取PPT窗口句柄失败: {ex.Message}", LogHelper.LogType.Trace);
}
}
return ret;
}
/// <summary>
/// 从 SlideShowWindow 对象获取窗口句柄
/// </summary>
private IntPtr GetPptHwndFromSlideShowWindow(object pptSlideShowWindowObj)
{
IntPtr hwnd = IntPtr.Zero;
if (pptSlideShowWindowObj == null) return IntPtr.Zero;
try
{
// 尝试强类型转换
Microsoft.Office.Interop.PowerPoint.SlideShowWindow slideWindow =
pptSlideShowWindowObj as Microsoft.Office.Interop.PowerPoint.SlideShowWindow;
if (slideWindow != null)
{
int hwndVal = slideWindow.HWND;
hwnd = new IntPtr(hwndVal);
LogHelper.WriteLogToFile($"从SlideShowWindow获取窗口句柄成功: {hwnd}", LogHelper.LogType.Trace);
}
else
{
// 如果强类型转换失败，尝试使用dynamic
try
{
dynamic ssw = pptSlideShowWindowObj;
int hwndVal = ssw.HWND;
hwnd = new IntPtr(hwndVal);
LogHelper.WriteLogToFile($"从SlideShowWindow获取窗口句柄成功(dynamic): {hwnd}", LogHelper.LogType.Trace);
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"从SlideShowWindow获取窗口句柄失败: {ex.Message}", LogHelper.LogType.Trace);
}
}
}
catch (Exception ex)
{
LogHelper.WriteLogToFile($"从SlideShowWindow获取窗口句柄异常: {ex.Message}", LogHelper.LogType.Trace);
}
return hwnd;
}
/// <summary>
/// 通过窗口标题匹配获取PPT窗口句柄（备用方法）
/// </summary>
private IntPtr GetPptHwndWin32(string presFullName, string appName)
{
try
{
// 步骤 A: 基础参数校验
if (string.IsNullOrWhiteSpace(presFullName) || string.IsNullOrWhiteSpace(appName))
{
return IntPtr.Zero;
}
// 步骤 B: 提取关键信息 (应用类型 & 文件名)
string targetAppKeyword;
if (appName.IndexOf("WPS", StringComparison.OrdinalIgnoreCase) >= 0)
{
targetAppKeyword = "WPS";
}
else if (appName.IndexOf("PowerPoint", StringComparison.OrdinalIgnoreCase) >= 0)
{
targetAppKeyword = "PowerPoint";
}
else
{
// 既不是 WPS 也不是 PowerPoint，视为不支持
return IntPtr.Zero;
}
// 从路径中安全提取文件名（包含扩展名），如 "myppt.pptx"
string targetFileName = System.IO.Path.GetFileName(presFullName);
if (string.IsNullOrWhiteSpace(targetFileName))
{
return IntPtr.Zero;
}
// 步骤 C: 枚举窗口并查找匹配项
List<IntPtr> candidates = new List<IntPtr>();
// 调用 EnumWindows，使用 Lambda 表达式直接嵌入回调逻辑
EnumWindows((hWnd, lParam) =>
{
try
{
// [安全过滤] 1. 忽略不可见窗口
if (!IsWindowVisible(hWnd)) return true;
// [安全获取] 2. 获取窗口标题长度
int length = GetWindowTextLength(hWnd);
if (length == 0) return true;
// [安全获取] 3. 获取窗口标题文本
StringBuilder sb = new StringBuilder(length + 1);
GetWindowText(hWnd, sb, sb.Capacity);
string title = sb.ToString();
if (string.IsNullOrWhiteSpace(title)) return true;
// [核心匹配] 4. 判断标题是否同时包含 "文件名" 和 "应用关键字"
bool hasFileName = title.IndexOf(targetFileName, StringComparison.OrdinalIgnoreCase) >= 0;
bool hasAppKey = title.IndexOf(targetAppKeyword, StringComparison.OrdinalIgnoreCase) >= 0;
if (hasFileName && hasAppKey)
{
candidates.Add(hWnd);
}
// 继续枚举其他窗口
return true;
}
catch
{
// 回调内部容错，忽略单个窗口获取信息的错误，继续枚举
return true;
}
}, IntPtr.Zero);
// 步骤 D: 结果判定
// 只有当匹配到的窗口数量 唯一 (Count == 1) 时才返回句柄
// 0 个表示没找到，>1 个表示有歧义（无法确定是哪一个），均视为失败
if (candidates.Count == 1)
{
LogHelper.WriteLogToFile($"通过窗口标题匹配获取窗口句柄成功: {candidates[0]}", LogHelper.LogType.Trace);
return candidates[0];
}
else if (candidates.Count > 1)
{
LogHelper.WriteLogToFile($"通过窗口标题匹配找到多个候选窗口({candidates.Count}个)，无法确定唯一窗口", LogHelper.LogType.Trace);
}
return IntPtr.Zero;
}
catch (Exception ex)
{
// 发生任何不可预知的异常（如Path解析错误等），返回安全值
LogHelper.WriteLogToFile($"GetPptHwndWin32异常: {ex.Message}", LogHelper.LogType.Trace);
return IntPtr.Zero;
}
}
#endregion
#region Dispose #region Dispose
public void Dispose() public void Dispose()
{ {