Test Qt/PyQt Frameless Window resizing with QSizeGrip

testframeless.py

"""
Test Qt Frameless Window resizing with QSizeGrip

Maxwell Grady, September 2017.
"""
import sys
from PyQt5 import QtCore, QtWidgets
from qtmodern.styles import dark
from qtmodern.windows import ModernWindow

def main():
    app = QtWidgets.QApplication(sys.argv)
    dark(app)  # qtmodern

    window = QtWidgets.QWidget()

    # if you are not using qtmodern darkstyle, you can still make the QWidget resizeable and frameless by uncommenting the code below then commenting out the qtmodern code

    # flags = QtCore.Qt.WindowFlags(QtCore.Qt.FramelessWindowHint | QtCore.Qt.WindowStaysOnTopHint)
    # window.setWindowFlags(flags)
    window.setGeometry(QtCore.QRect(300, 300, 640, 480))  # arbitrary size/location

    layout = QtWidgets.QVBoxLayout()
    sizegrip = QtWidgets.QSizeGrip(window)
    layout.addWidget(sizegrip, 0, QtCore.Qt.AlignBottom | QtCore.Qt.AlignRight)
    window.setLayout(layout)

    mw = ModernWindow(window)  # qtmodern
    mw.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()