Add Kot key utils from https://github.com/jie65535/KeyGo

Source/GrasscutterTools/Utils/AppHotKey.cs

@@ -0,0 +1,61 @@
+using System;
+using System.ComponentModel;
+using System.Runtime.InteropServices;
+using System.Windows.Forms;
+
+namespace GrasscutterTools.Utils
+{
+    public static class AppHotKey
+    {
+        /// <summary>
+        /// 注册热键
+        /// </summary>
+        /// <param name="hwnd">窗口句柄</param>
+        /// <param name="hotKey_id">热键ID</param>
+        /// <param name="keyModifiers">组合键</param>
+        /// <param name="key">热键</param>
+        public static void RegKey(IntPtr hwnd, int hotKey_id, KeyModifiers keyModifiers, Keys key)
+        {
+            if (!RegisterHotKey(hwnd, hotKey_id, keyModifiers, key))
+                throw new Win32Exception();
+        }
+
+        /// <summary>
+        /// 注销热键
+        /// </summary>
+        /// <param name="hwnd">窗口句柄</param>
+        /// <param name="hotKey_id">热键ID</param>
+        public static void UnRegKey(IntPtr hwnd, int hotKey_id)
+        {
+            //注销Id号为hotKey_id的热键设定
+            UnregisterHotKey(hwnd, hotKey_id);
+        }
+
+        //如果函数执行成功，返回值不为0。
+        //如果函数执行失败，返回值为0。要得到扩展错误信息，调用GetLastError。
+        [DllImport("user32.dll", SetLastError = true)]
+        private static extern bool RegisterHotKey(
+            IntPtr hWnd,                //要定义热键的窗口的句柄
+            int id,                     //定义热键ID（不能与其它ID重复）
+            KeyModifiers fsModifiers,   //标识热键是否在按Alt、Ctrl、Shift、Windows等键时才会生效
+            Keys vk                     //定义热键的内容
+        );
+
+        [DllImport("user32.dll", SetLastError = true)]
+        private static extern bool UnregisterHotKey(
+            IntPtr hWnd,                //要取消热键的窗口的句柄
+            int id                      //要取消热键的ID
+        );
+
+        //定义了辅助键的名称（将数字转变为字符以便于记忆，也可去除此枚举而直接使用数值）
+        [Flags]
+        public enum KeyModifiers
+        {
+            None = 0,
+            Alt = 1,
+            Ctrl = 2,
+            Shift = 4,
+            WindowsKey = 8
+        }
+    }
+}