暂时可简单使用

Util/HotKey.cs

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+using System;
+using System.Collections.Generic;
+using System.Runtime.InteropServices;
+using System.Windows;
+using System.Windows.Input;
+using System.Windows.Interop;
+
+namespace GeekDesk.Util
+{
+
+    class Hotkey
+    {
+        #region 系统api
+        [DllImport("user32.dll")]
+        [return: MarshalAs(UnmanagedType.Bool)]
+        static extern bool RegisterHotKey(IntPtr hWnd, int id, HotkeyModifiers fsModifiers, uint vk);
+
+        [DllImport("user32.dll")]
+        static extern bool UnregisterHotKey(IntPtr hWnd, int id);
+        #endregion
+
+        /// <summary>
+        /// 注册快捷键
+        /// </summary>
+        /// <param name="window">持有快捷键窗口</param>
+        /// <param name="fsModifiers">组合键</param>
+        /// <param name="key">快捷键</param>
+        /// <param name="callBack">回调函数</param>
+        public static bool Regist(Window window, HotkeyModifiers fsModifiers, Key key, HotKeyCallBackHanlder callBack)
+        {
+            var hwnd = new WindowInteropHelper(window).Handle;
+            var _hwndSource = HwndSource.FromHwnd(hwnd);
+            _hwndSource.AddHook(WndProc);
+
+            int id = keyid++;
+
+            var vk = KeyInterop.VirtualKeyFromKey(key);
+            keymap[id] = callBack;
+
+            return RegisterHotKey(hwnd, id, fsModifiers, (uint)vk);
+        }
+
+        /// <summary>
+        /// 快捷键消息处理
+        /// </summary>
+        static IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
+        {
+            if (msg == WM_HOTKEY)
+            {
+                int id = wParam.ToInt32();
+                if (keymap.TryGetValue(id, out var callback))
+                {
+                    callback();
+                }
+            }
+            return IntPtr.Zero;
+        }
+
+        /// <summary>
+        /// 注销快捷键
+        /// </summary>
+        /// <param name="hWnd">持有快捷键窗口的句柄</param>
+        /// <param name="callBack">回调函数</param>
+        public static void UnRegist(IntPtr hWnd, HotKeyCallBackHanlder callBack)
+        {
+            foreach (KeyValuePair<int, HotKeyCallBackHanlder> var in keymap)
+            {
+                if (var.Value == callBack)
+                    UnregisterHotKey(hWnd, var.Key);
+            }
+        }
+
+
+        const int WM_HOTKEY = 0x312;
+        static int keyid = 10;
+        static Dictionary<int, HotKeyCallBackHanlder> keymap = new Dictionary<int, HotKeyCallBackHanlder>();
+
+        public delegate void HotKeyCallBackHanlder();
+    }
+
+    enum HotkeyModifiers
+    {
+        MOD_ALT = 0x1,
+        MOD_CONTROL = 0x2,
+        MOD_SHIFT = 0x4,
+        MOD_WIN = 0x8
+    }
+
+}