feat: 实现单实例应用程序支持

Program.cs

@@ -8,11 +8,21 @@ static class Program
     [STAThread]
     static void Main()
     {
-        TaskbarIntegration.InitializeProcess();
-        // To customize application configuration such as set high DPI settings or default font,
-        // see https://aka.ms/applicationconfiguration.
-        ApplicationConfiguration.Initialize();
-        TaskbarIntegration.InitializeShortcuts();
-        Application.Run(new MainForm());
+        if (!SingleInstanceManager.TryAcquire(out var instance) || instance is null)
+        {
+            SingleInstanceManager.SignalExistingInstance();
+            return;
+        }
+
+        using (instance)
+        {
+            TaskbarIntegration.InitializeProcess();
+            ApplicationConfiguration.Initialize();
+            TaskbarIntegration.InitializeShortcuts();
+
+            var mainForm = new MainForm();
+            instance.StartServer(mainForm.ActivateFromExternal);
+            Application.Run(mainForm);
+        }
     }
 }