diff --git a/Ink Canvas/MainWindow.xaml b/Ink Canvas/MainWindow.xaml
index e3d92bfa..4013c6ab 100644
--- a/Ink Canvas/MainWindow.xaml	
+++ b/Ink Canvas/MainWindow.xaml	
@@ -16,7 +16,6 @@
         ShowInTaskbar="False"
         Title="InkCanvasforClass"
         Topmost="True"
-        KeyDown="Window_KeyDown"
         Closing="Window_Closing"
         Closed="Window_Closed"
         PreviewKeyDown="Main_Grid_PreviewKeyDown"
@@ -43,25 +42,6 @@
             <c:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
             <c:IntNumberToString x:Key="IntNumberToString" />
             <c:IntNumberToString2 x:Key="IntNumberToString2" />
-            <RoutedUICommand x:Key="KeyExit" Text=" " />
-            <RoutedUICommand x:Key="HotKey_Command_Undo" Text=" " />
-            <RoutedUICommand x:Key="HotKey_Command_Redo" Text=" " />
-            <RoutedUICommand x:Key="HotKey_Command_Clear" Text=" " />
-            <RoutedUICommand x:Key="HotKey_Capture" Text=" " />
-            <RoutedUICommand x:Key="HotKey_Hide" Text=" " />
-            <RoutedUICommand x:Key="HotKey_ChangeToDrawTool" Text=" " />
-            <RoutedUICommand x:Key="HotKey_ChangeToQuitDrawTool" Text=" " />
-            <RoutedUICommand x:Key="HotKey_ChangeToSelect" Text=" " />
-            <RoutedUICommand x:Key="HotKey_ChangeToEraser" Text=" " />
-            <RoutedUICommand x:Key="HotKey_ChangeToBoard" Text=" " />
-            <RoutedUICommand x:Key="HotKey_ChangeToPen1" Text=" " />
-            <RoutedUICommand x:Key="HotKey_ChangeToPen2" Text=" " />
-            <RoutedUICommand x:Key="HotKey_ChangeToPen3" Text=" " />
-            <RoutedUICommand x:Key="HotKey_ChangeToPen4" Text=" " />
-            <RoutedUICommand x:Key="HotKey_ChangeToPen5" Text=" " />
-            <RoutedUICommand x:Key="HotKey_DrawLine" Text=" " />
-            <RoutedUICommand x:Key="HotKey_Paste" Text=" " />
-            <RoutedUICommand x:Key="NothingWillHappened" Text=" " />
 
             <!-- Navigation Button Style -->
             <Style x:Key="NavButton" TargetType="Button">
@@ -130,56 +110,6 @@
             </Style>
         </ResourceDictionary>
     </Window.Resources>
-    <!--输入命令绑定-->
-    <Window.InputBindings>
-        <KeyBinding Gesture="Escape" Command="{StaticResource KeyExit}" />
-        <KeyBinding Modifiers="Control" Key="Z" Command="{StaticResource HotKey_Command_Undo}" />
-        <KeyBinding Modifiers="Control" Key="Y" Command="{StaticResource HotKey_Command_Redo}" />
-        <KeyBinding Modifiers="Control" Key="E" Command="{StaticResource HotKey_Command_Clear}" />
-        <KeyBinding Modifiers="Alt" Key="C" Command="{StaticResource HotKey_Capture}" />
-        <KeyBinding Modifiers="Alt" Key="V" Command="{StaticResource HotKey_Hide}" />
-        <KeyBinding Modifiers="Alt" Key="S" Command="{StaticResource HotKey_ChangeToSelect}" />
-        <KeyBinding Modifiers="Alt" Key="D" Command="{StaticResource HotKey_ChangeToDrawTool}" />
-        <KeyBinding Modifiers="Alt" Key="Q" Command="{StaticResource HotKey_ChangeToQuitDrawTool}" />
-        <KeyBinding Modifiers="Alt" Key="E" Command="{StaticResource HotKey_ChangeToEraser}" />
-        <KeyBinding Modifiers="Alt" Key="B" Command="{StaticResource HotKey_ChangeToBoard}" />
-        <KeyBinding Modifiers="Alt" Key="D1" Command="{StaticResource HotKey_ChangeToPen1}" />
-        <KeyBinding Modifiers="Alt" Key="D2" Command="{StaticResource HotKey_ChangeToPen2}" />
-        <KeyBinding Modifiers="Alt" Key="D3" Command="{StaticResource HotKey_ChangeToPen3}" />
-        <KeyBinding Modifiers="Alt" Key="D4" Command="{StaticResource HotKey_ChangeToPen4}" />
-        <KeyBinding Modifiers="Alt" Key="D5" Command="{StaticResource HotKey_ChangeToPen5}" />
-        <KeyBinding Modifiers="Alt" Key="L" Command="{StaticResource HotKey_DrawLine}" />
-        <KeyBinding Modifiers="Control" Key="V" Command="{StaticResource HotKey_Paste}" />
-        <KeyBinding Modifiers="Alt" Key="F4" Command="{StaticResource NothingWillHappened}" />
-    </Window.InputBindings>
-    <!--命令执行方法绑定-->
-    <Window.CommandBindings>
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource KeyExit}" Executed="KeyExit" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_Command_Undo}"
-                        Executed="HotKey_Undo" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_Command_Redo}"
-                        Executed="HotKey_Redo" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_Command_Clear}"
-                        Executed="HotKey_Clear" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_ChangeToDrawTool}"
-                        Executed="KeyChangeToDrawTool" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_ChangeToQuitDrawTool}"
-                        Executed="KeyChangeToQuitDrawTool" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_ChangeToSelect}"
-                        Executed="KeyChangeToSelect" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_ChangeToEraser}"
-                        Executed="KeyChangeToEraser" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_ChangeToBoard}"
-                        Executed="KeyChangeToBoard" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_Capture}"
-                        Executed="KeyCapture" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_Hide}"
-                        Executed="KeyHide" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_DrawLine}"
-                        Executed="KeyDrawLine" />
-        <CommandBinding CanExecute="CommandBinding_CanExecute" Command="{StaticResource HotKey_Paste}"
-                        Executed="HandleGlobalPaste" />
-    </Window.CommandBindings>
 
     <Grid x:Name="Main_Grid">
 
diff --git a/Ink Canvas/MainWindow_cs/MW_Hotkeys.cs b/Ink Canvas/MainWindow_cs/MW_Hotkeys.cs
index edcbbbb1..a0cbc550 100644
--- a/Ink Canvas/MainWindow_cs/MW_Hotkeys.cs	
+++ b/Ink Canvas/MainWindow_cs/MW_Hotkeys.cs	
@@ -44,15 +44,8 @@ namespace Ink_Canvas
             }
         }
 
-        private void Window_KeyDown(object sender, KeyEventArgs e)
-        {
-            if (e.Key == Key.Escape) KeyExit(null, null);
-        }
-
-        private void CommandBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e)
-        {
-            e.CanExecute = true;
-        }
+        // 保留PPT翻页快捷键处理
+        // 以下方法保留供全局快捷键调用
 
         private void HotKey_Undo(object sender, ExecutedRoutedEventArgs e)
         {