win: fix potential bugs

Signed-off-by: fufesou <shuanglongchen@yeah.net>

flutter/lib/common.dart

@@ -1210,23 +1210,21 @@ Future<void> initUniLinks() async {
   }
 }
 
-StreamSubscription listenUniLinks() {
+StreamSubscription? listenUniLinks() {
-  if (Platform.isWindows || Platform.isMacOS) {
+  if (!(Platform.isWindows || Platform.isMacOS)) {
-    final sub = uriLinkStream.listen((Uri? uri) {
+    return null;
-      if (uri != null) {
-        callUniLinksUriHandler(uri);
-      } else {
-        print("uni listen error: uri is empty.");
-      }
-    }, onError: (err) {
-      print("uni links error: $err");
-    });
-    return sub;
-  } else {
-    // return empty stream subscription for uniform logic
-    final stream = Stream.empty();
-    return stream.listen((event) {/*ignore*/});
   }
+
+  final sub = uriLinkStream.listen((Uri? uri) {
+    if (uri != null) {
+      callUniLinksUriHandler(uri);
+    } else {
+      print("uni listen error: uri is empty.");
+    }
+  }, onError: (err) {
+    print("uni links error: $err");
+  });
+  return sub;
 }
 
 void checkArguments() {

flutter/windows/runner/main.cpp

@@ -1,6 +1,7 @@
 #include <flutter/dart_project.h>
 #include <flutter/flutter_view_controller.h>
 #include <windows.h>
+#include <tchar.h>
 #include <iostream>
 
 #include "flutter_window.h"
@@ -54,7 +55,7 @@ int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
   // only do uni links when dispatch a rustdesk links
   auto prefix = std::string(uniLinksPrefix);
   if (!command_line_arguments.empty() && command_line_arguments.front().compare(0, prefix.size(), prefix.c_str()) == 0) {
-     HWND hwnd = ::FindWindow(L"FLUTTER_RUNNER_WIN32_WINDOW", L"rustdesk");
+     HWND hwnd = ::FindWindow(_T("FLUTTER_RUNNER_WIN32_WINDOW"), _T("RustDesk"));
     if (hwnd != NULL) {
       DispatchToUniLinksDesktop(hwnd);