From 2fa27d6f837a5624ec49ff904ad880d9c8f317e6 Mon Sep 17 00:00:00 2001
From: CJK_mkp <113243675+CJKmkp@users.noreply.github.com>
Date: Sat, 31 May 2025 16:04:42 +0800
Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E9=AB=98=E4=BA=86PPT=E8=81=94?=
 =?UTF-8?q?=E5=8A=A8=E7=9A=84=E5=8F=AF=E7=94=A8=E6=80=A7?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Ink Canvas/MainWindow_cs/MW_PPT.cs            |  10 ++++++++--
 ...vasForClass.csproj.AssemblyReference.cache | Bin 35040 -> 34776 bytes
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/Ink Canvas/MainWindow_cs/MW_PPT.cs b/Ink Canvas/MainWindow_cs/MW_PPT.cs
index ed6928bf..751f7a69 100644
--- a/Ink Canvas/MainWindow_cs/MW_PPT.cs	
+++ b/Ink Canvas/MainWindow_cs/MW_PPT.cs	
@@ -80,7 +80,6 @@ namespace Ink_Canvas {
 
         public static bool IsShowingRestoreHiddenSlidesWindow = false;
         private static bool IsShowingAutoplaySlidesWindow = false;
-        private static bool hasLoggedPresentationWarning = false;
         private bool isPowerPointInitialized = false;
         
 
@@ -112,12 +111,18 @@ namespace Ink_Canvas {
                         pptApplication = (Microsoft.Office.Interop.PowerPoint.Application)Activator.CreateInstance(
                             Marshal.GetTypeFromCLSID(new Guid("91493441-5A91-11CF-8700-00AA0060263B")));
                     }
-            
                     isPowerPointInitialized = true;
+                    return;
                 }
                 
+                
+                
 
                 if (pptApplication != null) {
+                    // 检查是否有活动演示文稿
+                    if (pptApplication.Presentations.Count == 0 || pptApplication.ActivePresentation == null) 
+                        return; // 退出方法，避免后续代码执行
+                    isPowerPointInitialized = false;
                     timerCheckPPT.Stop();
                     //获得演示文稿对象
                     presentation = pptApplication.ActivePresentation;
@@ -152,6 +157,7 @@ namespace Ink_Canvas {
                 Application.Current.Dispatcher.Invoke(() => {
                     PptApplication_PresentationOpen(null);
                 });
+                
 
                 //如果检测到已经开始放映，则立即进入画板模式
                 if (pptApplication.SlideShowWindows.Count >= 1) {
diff --git a/Ink Canvas/obj/Debug/net472/InkCanvasForClass.csproj.AssemblyReference.cache b/Ink Canvas/obj/Debug/net472/InkCanvasForClass.csproj.AssemblyReference.cache
index 491d60f44290cc44779b1ec51e1ffa829d8ebff0..702ba8caef3f5617c0f5c391848f904e06c4d44e 100644
GIT binary patch
delta 93
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gPQK3Ax4DV+4kO!TKd?*+yV7JnenBMJ#T>Q`0J1tH6#xJL

delta 285
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