All the library (included natives) process are test finished.

core_lib/qt/hack.py

@@ -1,3 +1,4 @@
+from PySide6.QtCore import QCoreApplication, QThread
 from PySide6.QtGui import QScreen
 from PySide6.QtWidgets import QMainWindow, QApplication
 
@@ -8,3 +9,7 @@ def move_window_to_center(window: QMainWindow):
     geometry = window.frameGeometry()
     geometry.moveCenter(center)
     window.move(geometry.topLeft())
+
+def is_main_thread() -> bool:
+    app = QCoreApplication.instance()
+    return app is not None and QThread.currentThread() == app.thread()