add:issue #156

Ink Canvas/MainWindow.xaml

@@ -1895,6 +1895,16 @@
                                     <TextBlock
                                         Text="# 允许开启画板时使用手指手势进行幻灯片翻页（启用后，在幻灯片放映模式下，当画板无墨迹时，使用手指（笔尖或手掌无法识别）左右滑动即可控制幻灯片翻页。）"
                                         TextWrapping="Wrap" Foreground="#a1a1aa" />
+                                    <ui:SimpleStackPanel Orientation="Horizontal" HorizontalAlignment="Left">
+                                        <TextBlock Foreground="#fafafa" Text="PPT 放映模式显示手势按钮" VerticalAlignment="Center"
+                                                   FontSize="14" Margin="0,0,16,0" />
+                                        <ui:ToggleSwitch OnContent="" OffContent=""
+                                                         Name="ToggleSwitchShowGestureButtonInSlideShow" IsOn="False"
+                                                         FontFamily="Microsoft YaHei UI" FontWeight="Bold"
+                                                         Toggled="ToggleSwitchShowGestureButtonInSlideShow_Toggled" />
+                                    </ui:SimpleStackPanel>
+                                    <TextBlock Text="# 开启后在 PPT 放映模式下也显示手势按钮" TextWrapping="Wrap"
+                                               Foreground="#a1a1aa" />
                                     <Line HorizontalAlignment="Center" X1="0" Y1="0" X2="400" Y2="0" Stroke="#3f3f46"
                                           StrokeThickness="1" Margin="0,4,0,4" />
                                     <ui:SimpleStackPanel Orientation="Horizontal" HorizontalAlignment="Left">

Ink Canvas/MainWindow.xaml.cs

@@ -2139,6 +2139,56 @@ namespace Ink_Canvas
                 LogHelper.WriteLogToFile($"批注子面板中切换墨迹渐隐功能时出错: {ex.Message}", LogHelper.LogType.Error);
             }
         }
+
+        /// <summary>
+        /// PPT放映模式显示手势按钮开关切换事件处理
+        /// </summary>
+        private void ToggleSwitchShowGestureButtonInSlideShow_Toggled(object sender, RoutedEventArgs e)
+        {
+            try
+            {
+                if (!isLoaded) return;
+                var toggle = sender as ToggleSwitch;
+                Settings.PowerPointSettings.ShowGestureButtonInSlideShow = toggle != null && toggle.IsOn;
+                SaveSettingsToFile();
+                
+                // 如果当前在PPT放映模式，需要立即更新手势按钮的显示状态
+                if (BtnPPTSlideShowEnd.Visibility == Visibility.Visible)
+                {
+                    UpdateGestureButtonVisibilityInPPTMode();
+                }
+                
+                LogHelper.WriteLogToFile($"PPT放映模式显示手势按钮已{(Settings.PowerPointSettings.ShowGestureButtonInSlideShow ? "启用" : "禁用")}", LogHelper.LogType.Event);
+            }
+            catch (Exception ex)
+            {
+                LogHelper.WriteLogToFile($"切换PPT放映模式显示手势按钮时出错: {ex.Message}", LogHelper.LogType.Error);
+            }
+        }
+
+        /// <summary>
+        /// 更新PPT模式下手势按钮的显示状态
+        /// </summary>
+        private void UpdateGestureButtonVisibilityInPPTMode()
+        {
+            try
+            {
+                if (Settings.PowerPointSettings.ShowGestureButtonInSlideShow)
+                {
+                    // 如果启用了PPT放映模式显示手势按钮，则显示手势按钮（在PPT模式下不依赖手势功能是否启用）
+                    CheckEnableTwoFingerGestureBtnVisibility(true);
+                }
+                else
+                {
+                    // 如果禁用了PPT放映模式显示手势按钮，则隐藏手势按钮
+                    EnableTwoFingerGestureBorder.Visibility = Visibility.Collapsed;
+                }
+            }
+            catch (Exception ex)
+            {
+                LogHelper.WriteLogToFile($"更新PPT模式下手势按钮显示状态时出错: {ex.Message}", LogHelper.LogType.Error);
+            }
+        }
         #endregion
 
         #region PPT翻页直接传递

Ink Canvas/MainWindow_cs/MW_FloatingBarIcons.cs

@@ -130,10 +130,18 @@ namespace Ink_Canvas
         /// </summary>
         private void CheckEnableTwoFingerGestureBtnVisibility(bool isVisible)
         {
-            // 在PPT模式下始终隐藏手势按钮
+            // 在PPT模式下根据设置决定是否显示手势按钮
             if (currentMode == 0 || BtnPPTSlideShowEnd.Visibility == Visibility.Visible)
             {
-                EnableTwoFingerGestureBorder.Visibility = Visibility.Collapsed;
+                // 如果启用了PPT放映模式显示手势按钮，则显示手势按钮（在PPT模式下不依赖手势功能是否启用）
+                if (Settings.PowerPointSettings.ShowGestureButtonInSlideShow && isVisible)
+                {
+                    EnableTwoFingerGestureBorder.Visibility = Visibility.Visible;
+                }
+                else
+                {
+                    EnableTwoFingerGestureBorder.Visibility = Visibility.Collapsed;
+                }
                 return;
             }
 

Ink Canvas/MainWindow_cs/MW_PPT.cs

@@ -643,10 +643,24 @@ namespace Ink_Canvas
 
                     BorderFloatingBarMainControls.Visibility = Visibility.Visible;
 
-                    // 在PPT模式下隐藏手势面板和手势按钮
+                    // 在PPT模式下根据设置决定是否隐藏手势面板和手势按钮
                     AnimationsHelper.HideWithSlideAndFade(TwoFingerGestureBorder);
                     AnimationsHelper.HideWithSlideAndFade(BoardTwoFingerGestureBorder);
-                    EnableTwoFingerGestureBorder.Visibility = Visibility.Collapsed;
+                    
+                    // 根据设置决定是否在PPT放映模式下显示手势按钮
+                    if (Settings.PowerPointSettings.ShowGestureButtonInSlideShow)
+                    {
+                        // 如果启用了PPT放映模式显示手势按钮，则显示手势按钮
+                        if (Settings.Gesture.IsEnableTwoFingerGesture)
+                        {
+                            CheckEnableTwoFingerGestureBtnVisibility(true);
+                        }
+                    }
+                    else
+                    {
+                        // 如果禁用了PPT放映模式显示手势按钮，则隐藏手势按钮
+                        EnableTwoFingerGestureBorder.Visibility = Visibility.Collapsed;
+                    }
 
                     if (Settings.PowerPointSettings.IsShowCanvasAtNewSlideShow &&
                         !Settings.Automation.IsAutoFoldInPPTSlideShow)

Ink Canvas/Resources/Settings.cs

@@ -309,6 +309,8 @@ namespace Ink_Canvas
         public bool IsAlwaysGoToFirstPageOnReenter { get; set; }
         [JsonProperty("enablePowerPointEnhancement")]
         public bool EnablePowerPointEnhancement { get; set; } = false;
+        [JsonProperty("showGestureButtonInSlideShow")]
+        public bool ShowGestureButtonInSlideShow { get; set; } = false;
     }
 
     public class Automation