Работа с clipboard в потоке

        # clipboard catcher
        if WindowsHacks is not None:
            self.clipboardInterceptor = WindowsHacks.ClipboardCatchIceptor(self)
            self.browserMoveInterceptor = WindowsHacks.BrowserMoveIceptor(self)
 
            self._interceptCollection = WindowsHacks.WinProcInterceptCollection(
                    (self.clipboardInterceptor, self.browserMoveInterceptor))
        else:
            self.browserMoveInterceptor = None
            self.clipboardInterceptor = OsAbstract.createClipboardInterceptor(self)
            self._interceptCollection = OsAbstract.createInterceptCollection(
                    (self.clipboardInterceptor,))
 
        if self._interceptCollection is not None:
            self._interceptCollection.start(self) # .GetHandle())

#!/usr/bin/python3
# -*- coding: utf-8 -*-
#
# Clipboard Probe v0.001
import sys
from PyQt5 import (
    QtCore,
    QtGui,
    QtWidgets
    )
 
APP_NAME = 'Clipboard Probe v0.001'
 
def get_screen_geo_by_pos(point_pos = QtCore.QPoint(0, 0)):
    screens = QtWidgets.QApplication.instance().screens()
    selected_screen = screens[
        QtWidgets.QApplication.desktop().primaryScreen()
        ]
    if len(screens) > 1:
        for i in range(len(screens)):
            if screens[i].geometry().contains(point_pos):
                selected_screen = screens[i]
                break
    return selected_screen.availableGeometry()
 
def set_quarter_screen(client, screen_geo):
    client.move(
        screen_geo.x() + screen_geo.width() // 4,
        screen_geo.y() + screen_geo.height() // 4
        )
    client.resize(
        screen_geo.width() // 2,
        screen_geo.height() // 2
        )
 
class Main_window(QtWidgets.QMainWindow):
    def __init__(self, parent=None,
                 point_pos=QtGui.QCursor.pos()):
 
        super(Main_window, self).__init__(parent)
        self.setWindowTitle(APP_NAME)
 
        self.cb = QtWidgets.QApplication.instance().clipboard()
        self.cb_text = QtWidgets.QLabel(self.cb.text(), self)
        self.cb_text.setWordWrap(True)
 
        v_map = QtWidgets.QVBoxLayout(None)
        v_map.addWidget(self.cb_text)
        v_map.addStretch(1)
 
        main_map = QtWidgets.QHBoxLayout(None)
        main_map.addStretch(1)
        main_map.addLayout(v_map)
        main_map.addStretch(1)
 
        central_widget = QtWidgets.QWidget(self)
        central_widget.setObjectName('centralwidget')
        central_widget.setLayout(main_map)
        self.setCentralWidget(central_widget)
 
        set_quarter_screen(
            self,
            get_screen_geo_by_pos(point_pos)
            )
 
        self.cb.dataChanged.connect(self.clipboard_changed)
 
    def clipboard_changed(self):
        self.cb_text.setText(self.cb.text())
 
if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    mwin = Main_window()
    mwin.show()
    sys.exit(app.exec_())