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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
from __future__ import annotations
# PySide6 tutorial 5
import sys
from PySide6.QtCore import Qt
from PySide6.QtGui import QFont
from PySide6.QtWidgets import (QApplication, QLCDNumber, QPushButton,
QSlider, QVBoxLayout, QWidget)
class MyWidget(QWidget):
def __init__(self, parent=None):
super().__init__(parent)
quit = QPushButton("Quit")
quit.setFont(QFont("Times", 18, QFont.Bold))
lcd = QLCDNumber(2)
slider = QSlider(Qt.Horizontal)
slider.setRange(0, 99)
slider.setValue(0)
quit.clicked.connect(qApp.quit) # noqa: F821
slider.valueChanged.connect(lcd.display)
layout = QVBoxLayout(self)
layout.addWidget(quit)
layout.addWidget(lcd)
layout.addWidget(slider)
if __name__ == '__main__':
app = QApplication(sys.argv)
widget = MyWidget()
widget.show()
sys.exit(app.exec())
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