Suggestion on Synchronous events or refocusing app

[dlewis2017]

Hi, I'm wondering what the best way is to synchronously use this package or re-focus the flutter app window after clicking the main windows OS desktop.

E.g.

1. Select spot on screen (in app)
2. Allow clicks to pass through screen (in app, other Flutter package - https://pub.dev/packages/window_manager)
3. Above causes background app clicked (or desktop) to be focused during click
4. Re-focus to app after clicking (in app)

Synchronous would help because I would continue execution after click happens. Re-focusing would be helpful because it gets stuck on the app it clicked and I can't re-focus to Flutter app

I've been trying to combined SetFocus with regular click flow and coming up empty. I think once the flutter app goes out of focus, unless there's an imediate process queued up, the app won't gain control back. But if the transition between clicking and returning focus is too fast, the click doesn't show. Thoughts?

Code so far (one of many different attempts):

var cursorPoint = calloc<POINT>()
        ..ref.x = xInt
        ..ref.y = yInt;
      final otherCursorPoint = calloc<POINT>();
      var mouse = calloc<INPUT>()
        ..ref.type = INPUT_MOUSE
        ..ref.mi.dwFlags = MOUSEEVENTF_LEFTDOWN;
      try {
        int currentWindow = GetActiveWindow();
        int conversionResult = ClientToScreen(currentWindow, cursorPoint);
        int setCursorResult = SetCursorPos(cursorPoint.ref.x, cursorPoint.ref.y);
        int result = SendInput(1, mouse, sizeOf<INPUT>());
        if (result != 1) {
          emit(ErrorState(
              errorMessage:
                  'Erroring clicking screen. Results: sendInputResult (press mouse):$result, setCursorResult:$setCursorResult, conversionResult:$conversionResult, currentWindow:$currentWindow'));
        }
        mouse.ref.mi.dwFlags = MOUSEEVENTF_LEFTUP;
        result = SendInput(1, mouse, sizeOf<INPUT>());
        if (result != 1) {
          emit(ErrorState(
              errorMessage:
                  'Erroring clicking screen. Results: sendInputResult (release mouse):$result, setCursorResult:$setCursorResult, conversionResult:$conversionResult, currentWindow:$currentWindow'));
        }
        Sleep(200);
        SetFocus(focusedApp); // focusedApp = GetFocus() - on Bloc instatiation
      } catch (_error, _stackTrace) {
        emit(ErrorState(errorMessage: _error.toString(), errorBody: _stackTrace.toString()));
      } finally {
        free(mouse);
        free(cursorPoint);
        free(otherCursorPoint);
        // Future.delayed(const Duration(milliseconds: 1000), () {
        //    SetFocus(focusedApp);
        // });
      }