diff --git a/src/Shared/HandyControl_Shared/Tools/GlobalShortcut.cs b/src/Shared/HandyControl_Shared/Tools/GlobalShortcut.cs
index ce248ba5..62b0c7b8 100644
--- a/src/Shared/HandyControl_Shared/Tools/GlobalShortcut.cs
+++ b/src/Shared/HandyControl_Shared/Tools/GlobalShortcut.cs
@@ -1,4 +1,6 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
 using System.Windows;
 using System.Windows.Input;
 using HandyControl.Data;
@@ -7,11 +9,12 @@ namespace HandyControl.Tools
 {
     public class GlobalShortcut
     {
-        private static readonly Dictionary<string, KeyBinding> CommandDic = new Dictionary<string, KeyBinding>();
+        private static readonly HashSet<InputBindingCollection> InputBindingCollectionSet = new HashSet<InputBindingCollection>();
 
         static GlobalShortcut()
         {
             KeyboardHook.KeyDown += KeyboardHook_KeyDown;
+            KeyboardHook.Start();
         }
 
         private static void KeyboardHook_KeyDown(object sender, KeyboardHookEventArgs e) => HitTest(e.Key);
@@ -20,23 +23,14 @@ namespace HandyControl.Tools
         {
             if (IsModifierKey(key)) return;
 
-            var modifierKeys = Keyboard.Modifiers;
-            var keyStr = modifierKeys != ModifierKeys.None ? $"{modifierKeys.ToString()}, {key.ToString()}" : key.ToString();
-            ExecuteCommand(keyStr);
-        }
-
-        private static void ExecuteCommand(string key)
-        {
-            if (string.IsNullOrEmpty(key)) return;
-            if (CommandDic.ContainsKey(key))
+            var keyBindings = InputBindingCollectionSet
+                .SelectMany(inputBindingCollection => inputBindingCollection.OfType<KeyBinding>())
+                .Where(keyBinding => keyBinding.Key != Key.None && keyBinding.Modifiers == Keyboard.Modifiers && keyBinding.Key == key);
+            keyBindings.ToList().ForEach(keyBinding =>
             {
-                var keyBinding = CommandDic[key];
-                var command = keyBinding.Command;
-                if (command != null && command.CanExecute(keyBinding.CommandParameter))
-                {
-                    command.Execute(keyBinding.CommandParameter);
-                }
-            }
+                if (keyBinding.Command?.CanExecute(keyBinding.CommandParameter) == true)
+                    keyBinding.Command?.Execute(keyBinding.CommandParameter);
+            });
         }
 
         private static bool IsModifierKey(Key key)
@@ -45,43 +39,25 @@ namespace HandyControl.Tools
                    key == Key.RightCtrl || key == Key.RightAlt || key == Key.RightShift || key == Key.RWin;
         }
 
+        [Obsolete]
         public static void Init(DependencyObject host)
         {
-            CommandDic.Clear();
-
-            if (host == null) return;
-
-            var keyBindings = GetKeyBindings(host);
-            if (keyBindings == null || keyBindings.Count == 0) return;
-
-            foreach (KeyBinding item in keyBindings)
-            {
-                if (item.Key == Key.None)
-                {
-                    continue;
-                }
-
-                if (item.Modifiers == ModifierKeys.None)
-                {
-                    CommandDic[item.Key.ToString()] = item;
-                }
-                else
-                {
-                    var keyStr = $"{item.Modifiers.ToString()}, {item.Key.ToString()}";
-                    CommandDic[keyStr] = item;
-                }
-            }
-
-            KeyboardHook.Start();
         }
 
         public static readonly DependencyProperty KeyBindingsProperty = DependencyProperty.RegisterAttached(
-            "KeyBindings", typeof(InputBindingCollection), typeof(GlobalShortcut), new PropertyMetadata(new InputBindingCollection()));
+            "KeyBindings", typeof(InputBindingCollection), typeof(GlobalShortcut), new PropertyMetadata(new InputBindingCollection()), OnValidateValue);
+
+        private static bool OnValidateValue(object value)
+        {
+            if (value is InputBindingCollection inputBindingCollection && !InputBindingCollectionSet.Contains(inputBindingCollection))
+                InputBindingCollectionSet.Add(inputBindingCollection);
+            return true;
+        }
 
         public static void SetKeyBindings(DependencyObject element, InputBindingCollection value)
             => element.SetValue(KeyBindingsProperty, value);
 
         public static InputBindingCollection GetKeyBindings(DependencyObject element)
-            => (InputBindingCollection) element.GetValue(KeyBindingsProperty);
+            => (InputBindingCollection)element.GetValue(KeyBindingsProperty);
     }
 }
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