From a7d0f022dc8543466365f48bc3fb0f61096062db Mon Sep 17 00:00:00 2001
From: CJKmkp <2564608840@qq.com>
Date: Wed, 18 Feb 2026 22:21:44 +0800
Subject: [PATCH] =?UTF-8?q?improve:=E8=81=94=E5=8A=A8=E6=A8=A1=E5=9D=97?=
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---
 Ink Canvas/MainWindow_cs/MW_PPT.cs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Ink Canvas/MainWindow_cs/MW_PPT.cs b/Ink Canvas/MainWindow_cs/MW_PPT.cs
index 78aa67fa..31765a96 100644
--- a/Ink Canvas/MainWindow_cs/MW_PPT.cs	
+++ b/Ink Canvas/MainWindow_cs/MW_PPT.cs	
@@ -207,6 +207,15 @@ namespace Ink_Canvas
 
         private void StopPPTMonitoring()
         {
+            try
+            {
+                _exitPPTModeAfterDisconnectTimer?.Stop();
+                _exitPPTModeAfterDisconnectTimer = null;
+            }
+            catch
+            {
+            }
+
             _pptManager?.StopMonitoring();
             LogHelper.WriteLogToFile("PPT监控已停止", LogHelper.LogType.Event);
         }