Thread/Signal

[LittleGrim13]

Hey All

I m trying to update a textbox with signals from a thread. But I am unable to wrap my head around the business of signals.

Here is what I have so far:
Main function
ThreadSignal.py

from PyQt5.QtWidgets import QApplication, QDialog
from PyQt5.QtCore import pyqtSignal
from ThreadSignalUI import Ui_MainWindow
from threading import Thread

import sys
import time

class WorkThread(Thread):
    def __init__(self):
        Thread.__init__(self)
        self.stop_work_thread = 0
        self.start()
        self.val = 0

    def run(self):
        runningval = 0
        UpdateTextBoxSignal = pyqtSignal()
        while runningval < 10:
            runningval += 1
            self.UpdateTextBoxSignal.emit(runningval)
            time.sleep(0.5)

        
class ThreadSignal(Ui_MainWindow):

    def __init__(self, Application):
        Ui_MainWindow.__init__(self)
        self.setupUi(Application)
        
        self.StartButt.clicked.connect(self.StartThreading)
    
    def StartThreading(self, event):
        self.work = WorkThread()
        self.UpdateTextBoxSignal.connect(UpdateTextBoxFunction)
        
def UpdateTextBoxFunction(self):
    self.TextBox.setText(str(runningval))

app = 0   
app = QApplication(sys.argv)
Application = QDialog()
Program = ThreadSignal(Application)
Application.show()
app.exec_()

ThreadSignalUI.py

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(269, 232)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.TextBox = QtWidgets.QLineEdit(self.centralwidget)
        self.TextBox.setGeometry(QtCore.QRect(74, 40, 113, 20))
        self.TextBox.setObjectName("TextBox")
        self.StartButt = QtWidgets.QPushButton(self.centralwidget)
        self.StartButt.setGeometry(QtCore.QRect(94, 72, 75, 23))
        self.StartButt.setObjectName("StartButt")
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.StartButt.setText(_translate("MainWindow", "Start"))

I followed a couple of tutorials to get to this point, but still unable to get a working program.