diff --git a/flutter/lib/common.dart b/flutter/lib/common.dart
index 63ab39df2..eac7fbf9b 100644
--- a/flutter/lib/common.dart
+++ b/flutter/lib/common.dart
@@ -1290,11 +1290,24 @@ bool callUniLinksUriHandler(Uri uri) {
   return false;
 }
 
+connectMainDesktop(String id,
+    {required bool isFileTransfer,
+    required bool isTcpTunneling,
+    required bool isRDP}) async {
+  if (isFileTransfer) {
+    await rustDeskWinManager.newFileTransfer(id);
+  } else if (isTcpTunneling || isRDP) {
+    await rustDeskWinManager.newPortForward(id, isRDP);
+  } else {
+    await rustDeskWinManager.newRemoteDesktop(id);
+  }
+}
+
 /// Connect to a peer with [id].
 /// If [isFileTransfer], starts a session only for file transfer.
 /// If [isTcpTunneling], starts a session only for tcp tunneling.
 /// If [isRDP], starts a session only for rdp.
-void connect(BuildContext context, String id,
+connect(BuildContext context, String id,
     {bool isFileTransfer = false,
     bool isTcpTunneling = false,
     bool isRDP = false}) async {
@@ -1304,12 +1317,20 @@ void connect(BuildContext context, String id,
       "more than one connect type");
 
   if (isDesktop) {
-    if (isFileTransfer) {
-      await rustDeskWinManager.newFileTransfer(id);
-    } else if (isTcpTunneling || isRDP) {
-      await rustDeskWinManager.newPortForward(id, isRDP);
+    if (desktopType == DesktopType.main) {
+      await connectMainDesktop(
+        id,
+        isFileTransfer: isFileTransfer,
+        isTcpTunneling: isTcpTunneling,
+        isRDP: isRDP,
+      );
     } else {
-      await rustDeskWinManager.newRemoteDesktop(id);
+      await rustDeskWinManager.call(WindowType.Main, kWindowConnect, {
+        'id': id,
+        'isFileTransfer': isFileTransfer,
+        'isTcpTunneling': isTcpTunneling,
+        'isRDP': isRDP,
+      });
     }
   } else {
     if (isFileTransfer) {
diff --git a/flutter/lib/consts.dart b/flutter/lib/consts.dart
index b0099ca7c..50e7f594b 100644
--- a/flutter/lib/consts.dart
+++ b/flutter/lib/consts.dart
@@ -11,9 +11,12 @@ const String kAppTypeDesktopRemote = "remote";
 const String kAppTypeDesktopFileTransfer = "file transfer";
 const String kAppTypeDesktopPortForward = "port forward";
 
+const String kWindowMainWindowOnTop = "main_window_on_top";
+const String kWindowGetWindowInfo = "get_window_info";
 const String kWindowActionRebuild = "rebuild";
 const String kWindowEventHide = "hide";
 const String kWindowEventShow = "show";
+const String kWindowConnect = "connect";
 
 const String kUniLinksPrefix = "rustdesk://";
 const String kActionNewConnection = "connection/new/";
diff --git a/flutter/lib/desktop/pages/desktop_home_page.dart b/flutter/lib/desktop/pages/desktop_home_page.dart
index 53f4d4d90..f387c450f 100644
--- a/flutter/lib/desktop/pages/desktop_home_page.dart
+++ b/flutter/lib/desktop/pages/desktop_home_page.dart
@@ -500,9 +500,9 @@ class _DesktopHomePageState extends State<DesktopHomePage>
     rustDeskWinManager.setMethodHandler((call, fromWindowId) async {
       debugPrint(
           "[Main] call ${call.method} with args ${call.arguments} from window $fromWindowId");
-      if (call.method == "main_window_on_top") {
+      if (call.method == kWindowMainWindowOnTop) {
         window_on_top(null);
-      } else if (call.method == "get_window_info") {
+      } else if (call.method == kWindowGetWindowInfo) {
         final screen = (await window_size.getWindowInfo()).screen;
         if (screen == null) {
           return "";
@@ -529,6 +529,13 @@ class _DesktopHomePageState extends State<DesktopHomePage>
         rustDeskWinManager.registerActiveWindow(call.arguments["id"]);
       } else if (call.method == kWindowEventHide) {
         rustDeskWinManager.unregisterActiveWindow(call.arguments["id"]);
+      } else if (call.method == kWindowConnect) {
+        await connectMainDesktop(
+          call.arguments['id'],
+          isFileTransfer: call.arguments['isFileTransfer'],
+          isTcpTunneling: call.arguments['isTcpTunneling'],
+          isRDP: call.arguments['isRDP'],
+        );
       }
     });
     _uniLinksSubscription = listenUniLinks();
diff --git a/flutter/lib/desktop/widgets/remote_menubar.dart b/flutter/lib/desktop/widgets/remote_menubar.dart
index d40a21e5d..250910396 100644
--- a/flutter/lib/desktop/widgets/remote_menubar.dart
+++ b/flutter/lib/desktop/widgets/remote_menubar.dart
@@ -8,6 +8,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter_hbb/models/chat_model.dart';
 import 'package:flutter_hbb/models/state_model.dart';
 import 'package:flutter_hbb/consts.dart';
+import 'package:flutter_hbb/utils/multi_window_manager.dart';
 import 'package:get/get.dart';
 import 'package:provider/provider.dart';
 import 'package:rxdart/rxdart.dart' as rxdart;
@@ -201,7 +202,8 @@ class _RemoteMenubarState extends State<RemoteMenubar> {
   }
 
   _updateScreen() async {
-    final v = await DesktopMultiWindow.invokeMethod(0, 'get_window_info', '');
+    final v = await rustDeskWinManager.call(
+        WindowType.Main, kWindowGetWindowInfo, '');
     final String valueStr = v;
     if (valueStr.isEmpty) {
       _screen = null;
diff --git a/flutter/lib/desktop/widgets/tabbar_widget.dart b/flutter/lib/desktop/widgets/tabbar_widget.dart
index daf9272f7..436011cb5 100644
--- a/flutter/lib/desktop/widgets/tabbar_widget.dart
+++ b/flutter/lib/desktop/widgets/tabbar_widget.dart
@@ -1033,8 +1033,8 @@ class AddButton extends StatelessWidget {
     return ActionIcon(
         message: 'New Connection',
         icon: IconFont.add,
-        onTap: () =>
-            rustDeskWinManager.call(WindowType.Main, "main_window_on_top", ""),
+        onTap: () => rustDeskWinManager.call(
+            WindowType.Main, kWindowMainWindowOnTop, ""),
         isClose: false);
   }
 }