添加单实例限制、应用图标、移除托盘设置菜单、快捷键暂停/恢复功能

单实例限制：通过命名Mutex和窗口消息广播确保只能运行一个实例，再次启动时唤起已有窗口

应用图标：exe文件嵌入app.ico，托盘和窗口图标统一使用该图标文件

移除托盘右键菜单中与显示主界面重复的设置选项

快捷键暂停/恢复：托盘菜单和主界面侧边栏均添加切换按钮，通过MainViewModel.IsHotKeyEnabled双向同步

PersonalToolBox/App.xaml.cs

@@ -1,4 +1,6 @@
 using System.IO;
+using System.Runtime.InteropServices;
+using System.Threading;
 using System.Windows;
 using Microsoft.Extensions.DependencyInjection;
 using PersonalToolBox.Services;
@@ -17,6 +19,17 @@ public partial class App : System.Windows.Application
         Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
         "PersonalToolBox", "crash.log");
 
+    private const string AppMutexName = "PersonalToolBox_SingleInstance_8E2F4A1C";
+    private static Mutex? _mutex;
+
+    [DllImport("user32.dll")]
+    private static extern uint RegisterWindowMessage(string lpString);
+
+    [DllImport("user32.dll")]
+    private static extern bool PostMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);
+
+    private static readonly IntPtr HWND_BROADCAST = new IntPtr(0xFFFF);
+
     public App()
     {
         // 监听未处理的异常，写入文件日志
@@ -36,6 +49,15 @@ public partial class App : System.Windows.Application
 
     protected override async void OnStartup(StartupEventArgs e)
     {
+        _mutex = new Mutex(true, AppMutexName, out bool createdNew);
+        if (!createdNew)
+        {
+            uint msg = RegisterWindowMessage("PersonalToolBox_ShowMain");
+            PostMessage(HWND_BROADCAST, msg, IntPtr.Zero, IntPtr.Zero);
+            Shutdown();
+            return;
+        }
+
         try
         {
             base.OnStartup(e);

PersonalToolBox/Helpers/HotKeyManager.cs

@@ -16,6 +16,8 @@ public class HotKeyManager
     private readonly ILogService _logService;
     private readonly IProcessExecutionService _processService;
 
+    public bool IsEnabled { get; set; } = true;
+
     // ──────────────── Win32 API ────────────────
 
     private const int WM_HOTKEY = 0x0312;
@@ -103,6 +105,7 @@ public class HotKeyManager
     public bool TryHandleMessage(int msg, IntPtr wParam, IntPtr lParam)
     {
         if (msg != WM_HOTKEY) return false;
+        if (!IsEnabled) return true;
 
         int id = wParam.ToInt32();
         if (_hotkeyMap.TryGetValue(id, out var tool))

PersonalToolBox/PersonalToolBox.csproj

@@ -7,6 +7,7 @@
     <ImplicitUsings>disable</ImplicitUsings>
     <UseWPF>true</UseWPF>
     <UseWindowsForms>true</UseWindowsForms>
+    <ApplicationIcon>Resources\app.ico</ApplicationIcon>
   </PropertyGroup>
 
   <ItemGroup>
@@ -16,4 +17,10 @@
     <PackageReference Include="System.Text.Json" Version="10.0.7" />
   </ItemGroup>
 
+  <ItemGroup>
+    <Content Include="Resources\app.ico">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
 </Project>

PersonalToolBox/ViewModels/MainViewModel.cs

@@ -66,6 +66,9 @@ public partial class MainViewModel : ObservableObject
     [ObservableProperty]
     private bool _isAutoStart;
 
+    [ObservableProperty]
+    private bool _isHotKeyEnabled = true;
+
     // ───────────────────────────── 命令 ─────────────────────────────
 
     [RelayCommand]
@@ -94,6 +97,15 @@ public partial class MainViewModel : ObservableObject
         _logService.Info(IsAutoStart ? "已启用开机自启动" : "已关闭开机自启动");
     }
 
+    [RelayCommand]
+    private void ToggleHotKey()
+    {
+        IsHotKeyEnabled = !IsHotKeyEnabled;
+        _hotKeyManager.IsEnabled = IsHotKeyEnabled;
+        var status = IsHotKeyEnabled ? "已恢复" : "已暂停";
+        _logService.Info($"{status}快捷键功能");
+    }
+
     /// <summary>
     /// 供 MainWindow 外部调用，用于输出提示信息
     /// </summary>

PersonalToolBox/Views/MainWindow.xaml

@@ -178,6 +178,7 @@
                         <RowDefinition Height="42"/>
                         <RowDefinition Height="42"/>
                         <RowDefinition Height="45"/>
+                        <RowDefinition Height="45"/>
                     </Grid.RowDefinitions>
 
                     <ListBox Grid.Row="0"
@@ -277,7 +278,7 @@
                             BorderBrush="{DynamicResource Theme.CardBorder}"
                             Foreground="{DynamicResource Theme.Foreground}"
                             FontSize="12"
-                            Height="35" Margin="10,0,10,10"
+                            Height="35" Margin="10,0,10,3"
                             Cursor="Hand">
                         <StackPanel Orientation="Horizontal">
                             <TextBlock Text="◐" FontSize="16" Margin="0,0,8,0"
@@ -285,6 +286,28 @@
                             <TextBlock Text="切换主题" VerticalAlignment="Center"/>
                         </StackPanel>
                     </Button>
+
+                    <Button Grid.Row="4"
+                            Command="{Binding ToggleHotKeyCommand}"
+                            Background="Transparent"
+                            BorderThickness="1"
+                            BorderBrush="{DynamicResource Theme.CardBorder}"
+                            Foreground="{DynamicResource Theme.Foreground}"
+                            FontSize="12"
+                            Height="35" Margin="10,0,10,10"
+                            Cursor="Hand">
+                        <Button.Resources>
+                            <Style TargetType="TextBlock">
+                                <Setter Property="Text" Value="⏸ 暂停快捷键"/>
+                                <Style.Triggers>
+                                    <DataTrigger Binding="{Binding IsHotKeyEnabled}" Value="False">
+                                        <Setter Property="Text" Value="▶ 恢复快捷键"/>
+                                    </DataTrigger>
+                                </Style.Triggers>
+                            </Style>
+                        </Button.Resources>
+                        <TextBlock VerticalAlignment="Center" TextAlignment="Center"/>
+                    </Button>
                 </Grid>
             </Border>
 

PersonalToolBox/Views/MainWindow.xaml.cs

@@ -3,10 +3,13 @@ using System.Collections.Specialized;
 using System.ComponentModel;
 using System.Drawing;
 using System.Globalization;
+using System.IO;
+using System.Runtime.InteropServices;
 using System.Windows;
 using System.Windows.Data;
 using System.Windows.Forms;
 using System.Windows.Interop;
+using System.Windows.Media.Imaging;
 using FontAwesome.Sharp;
 using PersonalToolBox.Helpers;
 using PersonalToolBox.ViewModels;
@@ -18,8 +21,14 @@ public partial class MainWindow : Window
     private readonly MainViewModel _viewModel;
     private readonly HotKeyManager _hotKeyManager;
     private NotifyIcon? _notifyIcon;
+    private ToolStripMenuItem? _hotKeyToggleMenuItem;
     private bool _canActuallyClose;
 
+    [DllImport("user32.dll")]
+    private static extern uint RegisterWindowMessage(string lpString);
+
+    private readonly int _showMainMsg;
+
     public MainWindow(MainViewModel viewModel, HotKeyManager hotKeyManager)
     {
         InitializeComponent();
@@ -28,7 +37,18 @@ public partial class MainWindow : Window
         _hotKeyManager = hotKeyManager;
         DataContext = viewModel;
 
+        _showMainMsg = (int)RegisterWindowMessage("PersonalToolBox_ShowMain");
+
+        var iconPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Resources", "app.ico");
+        if (File.Exists(iconPath))
+        {
+            using var stream = File.OpenRead(iconPath);
+            var decoder = BitmapDecoder.Create(stream, BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
+            this.Icon = decoder.Frames[0];
+        }
+
         viewModel.Logs.CollectionChanged += OnLogsCollectionChanged;
+        viewModel.PropertyChanged += OnViewModelPropertyChanged;
 
         CreateTrayIcon();
     }
@@ -53,9 +73,14 @@ public partial class MainWindow : Window
     /// </summary>
     private void CreateTrayIcon()
     {
+        var iconPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Resources", "app.ico");
+        var trayIcon = File.Exists(iconPath)
+            ? new System.Drawing.Icon(iconPath)
+            : System.Drawing.SystemIcons.Application;
+
         _notifyIcon = new NotifyIcon
         {
-            Icon = CreateAppIcon(),
+            Icon = trayIcon,
             Visible = true,
             Text = "个人工具箱"
         };
@@ -68,26 +93,17 @@ public partial class MainWindow : Window
 
         var menu = new ContextMenuStrip();
         menu.Items.Add("显示主界面", null, (_, _) => ShowMainWindow());
-        menu.Items.Add("设置", null, (_, _) => OpenSettings());
+
+        _hotKeyToggleMenuItem = new ToolStripMenuItem(
+            _viewModel.IsHotKeyEnabled ? "暂停快捷键功能" : "恢复快捷键功能");
+        _hotKeyToggleMenuItem.Click += (_, _) => _viewModel.ToggleHotKeyCommand.Execute(null);
+        menu.Items.Add(_hotKeyToggleMenuItem);
+
         menu.Items.Add(new ToolStripSeparator());
         menu.Items.Add("彻底退出", null, (_, _) => ExitApplication());
         _notifyIcon.ContextMenuStrip = menu;
     }
 
-    /// <summary>
-    /// 程序化生成 32x32 托盘图标
-    /// </summary>
-    private static System.Drawing.Icon CreateAppIcon()
-    {
-        var bmp = new System.Drawing.Bitmap(32, 32);
-        using var g = System.Drawing.Graphics.FromImage(bmp);
-        g.Clear(System.Drawing.Color.FromArgb(30, 30, 46));
-        using var font = new System.Drawing.Font(System.Drawing.FontFamily.GenericSansSerif, 16, System.Drawing.FontStyle.Bold);
-        using var brush = new System.Drawing.SolidBrush(System.Drawing.Color.FromArgb(137, 180, 250));
-        g.DrawString("T", font, brush, new System.Drawing.PointF(6, 3));
-        return System.Drawing.Icon.FromHandle(bmp.GetHicon());
-    }
-
     /// <summary>
     /// 左键托盘图标：切换窗口显示/隐藏
     /// </summary>
@@ -109,15 +125,6 @@ public partial class MainWindow : Window
         Activate();
     }
 
-    /// <summary>
-    /// 打开设置（当前无额外设置界面，提示使用内置功能）
-    /// </summary>
-    private void OpenSettings()
-    {
-        ShowMainWindow();
-        _viewModel.LogServiceMessage("设置功能可通过左侧栏管理分类和主题切换");
-    }
-
     /// <summary>
     /// 彻底退出程序
     /// </summary>
@@ -146,10 +153,26 @@ public partial class MainWindow : Window
 
     private IntPtr WndProcHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
     {
+        if (msg == _showMainMsg)
+        {
+            Dispatcher.Invoke(() => ShowMainWindow());
+            handled = true;
+            return IntPtr.Zero;
+        }
+
         handled = _hotKeyManager.TryHandleMessage(msg, wParam, lParam);
         return IntPtr.Zero;
     }
 
+    private void OnViewModelPropertyChanged(object? sender, PropertyChangedEventArgs e)
+    {
+        if (e.PropertyName == nameof(MainViewModel.IsHotKeyEnabled) && _hotKeyToggleMenuItem != null)
+        {
+            bool enabled = _viewModel.IsHotKeyEnabled;
+            _hotKeyToggleMenuItem.Text = enabled ? "暂停快捷键功能" : "恢复快捷键功能";
+        }
+    }
+
     private void OnLogsCollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
     {
         if (e.Action == NotifyCollectionChangedAction.Add && LogListBox.Items.Count > 0)