Latest version

windows/runner/main.cpp

@@ -13,13 +13,37 @@ auto bdw = bitsdojo_window_configure(BDW_CUSTOM_FRAME | BDW_HIDE_ON_STARTUP);
 #include <stdio.h>
 #include <fcntl.h>
 
+bool CheckOneInstance()
+{
+    HANDLE m_hStartEvent = CreateEventW( NULL, FALSE, FALSE, L"reboot_launcher");
+    if(m_hStartEvent == NULL)
+    {
+        CloseHandle( m_hStartEvent );
+        return false;
+    }
+
+    if (GetLastError() == ERROR_ALREADY_EXISTS)
+    {
+        CloseHandle( m_hStartEvent );
+        m_hStartEvent = NULL;
+        return false;
+    }
+
+    return true;
+}
+
 int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
                       _In_ wchar_t *command_line, _In_ int show_command) {
-  std::vector<std::string> command_line_arguments = GetCommandLineArguments();
-  if (!command_line_arguments.empty() || (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent())) {
-    CreateAndAttachConsole();
+  if(!CheckOneInstance()){
+    return false;
   }
 
+  // Attach to console when present (e.g., 'flutter run') or create a
+  // new console when running with a debugger.
+  std::vector<std::string> command_line_arguments = GetCommandLineArguments();
+  if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
+    CreateAndAttachConsole();
+  }
 
   // Initialize COM, so that it is available for use in the library and/or
   // plugins.
@@ -44,6 +68,5 @@ int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
   }
 
   ::CoUninitialize();
-  std::cout << "Done" << std::endl;
   return EXIT_SUCCESS;
 }