embedding unity player with pyqt5

[Pythonic person]

hi, am trying to embed unity player within my pyqt5 application.
the following code works good with displaying the content of the game, but the problem is I can't interact with the game at all.

when I launch the game separately wherever I move the mouse I can change the camera view. but not any more with embedding it.

here is my current code:

import win32api
import win32process
from PyQt5.QtWidgets import QApplication, QWidget, QGridLayout, QLabel
from PyQt5.QtCore import Qt, QProcess
import sys
import time
import win32gui
from PyQt5.QtGui import QWindow
import ctypes

if __name__ == '__main__':
    app = QApplication(sys.argv)
    main_window = QWidget()
    main_window.setMinimumSize(600, 600)
    container = QWidget()

    # Create layout
    grid_layout = QGridLayout(main_window)

    unity = QProcess()
    unity.setProgram("C:/Users/USER/My project (2)/win32/My project (2).exe")
    unity.start()
    unity.waitForStarted()
    time.sleep(15)

    # Get the window handle for the spawned Unity instance
    hwnd = win32gui.FindWindow(0, "My project (2)")
    UnitySceneWindow = QWindow.fromWinId(hwnd)
    unityWidget = QWidget.createWindowContainer(UnitySceneWindow, main_window, Qt.FramelessWindowHint)
    unityWidget.setFocusPolicy(Qt.TabFocus)

    # Get the thread IDs for the Qt and Unity windows
    qt_thread_id = win32api.GetCurrentThreadId()
    _, unity_thread_id = win32process.GetWindowThreadProcessId(hwnd)

    # Detach the Qt process input from the Unity process
    ctypes.windll.user32.AttachThreadInput(qt_thread_id, unity_thread_id, False)

    # Detach the Unity process input from the Qt process
    ctypes.windll.user32.AttachThreadInput(unity_thread_id, qt_thread_id, False)

    # Activate the Unity window
    ctypes.windll.user32.SendMessageA(hwnd, 6, 1, 0)

    main_window.show()
    app.exec_()

I read about the same problem with the following thread:
https://forum.unity.com/threads/unity-player-embedded-into-qt-application.537879/
but couldn't fix the problem
please help I was stuck with this problem 3days