Merge pull request #45 from leoafarias/fix/spawn_window_process

Added conditional for process

windows/runner/main.cpp

@@ -11,9 +11,27 @@ int APIENTRY wWinMain(_In_ HINSTANCE instance, _In_opt_ HINSTANCE prev,
 {
   // Attach to console when present (e.g., 'flutter run') or create a
   // new console when running with a debugger.
-  if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent())
-  {
-    CreateAndAttachConsole();
+  // TODO: Remove conditional https://github.com/flutter/flutter/issues/47891
+  if (!::AttachConsole(ATTACH_PARENT_PROCESS) && ::IsDebuggerPresent()) {
+      CreateAndAttachConsole();
+  } else {
+    STARTUPINFO si = { 0 };
+    si.cb = sizeof(si);
+    si.dwFlags = STARTF_USESHOWWINDOW;
+    si.wShowWindow = SW_HIDE;
+
+    PROCESS_INFORMATION pi = { 0 };
+    WCHAR lpszCmd[MAX_PATH] = L"cmd.exe";
+    if (::CreateProcess(NULL, lpszCmd, NULL, NULL, FALSE, CREATE_NEW_CONSOLE | CREATE_NO_WINDOW, NULL, NULL, &si, &pi)) {
+      do {
+        if (::AttachConsole(pi.dwProcessId)) {
+          ::TerminateProcess(pi.hProcess, 0);
+          break;
+        }
+      } while (ERROR_INVALID_HANDLE == GetLastError());
+      ::CloseHandle(pi.hProcess);
+      ::CloseHandle(pi.hThread);
+    }
   }
 
   // Initialize COM, so that it is available for use in the library and/or