add SystemMenuHook

src/Shared/HandyControl_Shared/Tools/Hook/ClipboardHook.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Windows;
 using System.Windows.Interop;
 using HandyControl.Tools.Interop;
 
@@ -20,7 +19,7 @@ namespace HandyControl.Tools
                 Stop();
             }
 
-            HookId = new WindowInteropHelper(new Window()).EnsureHandle();
+            HookId = WindowHelper.CreateHandle();
             HWndSource = HwndSource.FromHwnd(HookId);
             if (HWndSource != null)
             {
@@ -29,7 +28,11 @@ namespace HandyControl.Tools
             }
         }
 
-        public static void Stop() => NativeMethods.RemoveClipboardFormatListener(HookId);
+        public static void Stop()
+        {
+            HWndSource.RemoveHook(WinProc);
+            NativeMethods.RemoveClipboardFormatListener(HookId);
+        }
 
         private static IntPtr WinProc(IntPtr hwnd, int msg, IntPtr wparam, IntPtr lparam, ref bool handled)
         {

src/Shared/HandyControl_Shared/Tools/Hook/SystemMenuHook.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Windows;
+using System.Windows.Interop;
+using HandyControl.Tools.Interop;
+
+namespace HandyControl.Tools
+{
+    public class SystemMenuHook
+    {
+        private static readonly Dictionary<int, HwndSource> DataDic = new Dictionary<int, HwndSource>();
+
+        public static event EventHandler<int> Click;
+
+        public static void Insert(int index, int id, string text, Window window)
+        {
+            var hookId = window.GetHandle();
+            var source = HwndSource.FromHwnd(hookId);
+            if (source != null)
+            {
+                DataDic[id] = source;
+                NativeMethods.InsertMenu(NativeMethods.GetSystemMenu(hookId, false), index, NativeMethods.MF_BYPOSITION, id, text);
+                source.AddHook(WinProc);
+            }
+        }
+
+        public static void InsertSeperator(int index, Window window) => NativeMethods.InsertMenu(
+            NativeMethods.GetSystemMenu(window.GetHandle(), false), index,
+            NativeMethods.MF_BYPOSITION | NativeMethods.MF_SEPARATOR, 0, "");
+
+        public static void Remove(int id)
+        {
+            if (DataDic.TryGetValue(id, out var data))
+            {
+                data.RemoveHook(WinProc);
+                DataDic.Remove(id);
+            }
+        }
+
+        private static IntPtr WinProc(IntPtr hwnd, int msg, IntPtr wparam, IntPtr lparam, ref bool handled)
+        {
+            if (msg == NativeMethods.WM_SYSCOMMAND)
+            {
+                var id = wparam.ToInt32();
+                if (DataDic.ContainsKey(id))
+                {
+                    Click?.Invoke(null, id);
+                }
+            }
+            return IntPtr.Zero;
+        }
+    }
+}