def _print_preview(tab: apitypes.Tab) -> None:
    """Show a print preview."""
    def print_callback(ok: bool) -> None:
        if not ok:
            message.error("Printing failed!")

    tab.printing.check_preview_support()
    diag = QPrintPreviewDialog(tab)
    diag.setAttribute(Qt.WA_DeleteOnClose)
    diag.setWindowFlags(
        diag.windowFlags() |  # type: ignore[operator, arg-type]
        Qt.WindowMaximizeButtonHint |
        Qt.WindowMinimizeButtonHint)
    diag.paintRequested.connect(functools.partial(
        tab.printing.to_printer, callback=print_callback))
    diag.exec_() 

def __init__(self, parent, title, msg, on_confirm):
        """
        * :param parent: Parent window
        * :param window_title:str
        * :param msg:str
        * :param on_confirm: Function to execute use parenthesis ()
        """
        super().__init__(parent)
        reply = QMessageBox.question(self, title, msg, QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
        self.setAttribute(Qt.WA_DeleteOnClose, True)
        self.setWindowTitle(title)
        view = Instance.retrieve("view")
        if view:
            self.setWindowIcon(view.icon())
        if reply == QMessageBox.Yes:
            on_confirm()
        else:
            self.destroy()
        self.show() 

def __init__(self, parent, title, msg, on_confirm):
        """
        * :param parent: Parent window
        * :param window_title:str
        * :param msg:str
        * :param on_confirm: Function to execute use parenthesis ()
        """
        super().__init__(parent)
        reply = QMessageBox.question(self, title, msg, QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
        self.setAttribute(Qt.WA_DeleteOnClose, True)
        self.setWindowTitle(title)
        view = Instance.retrieve("view")
        if view:
            self.setWindowIcon(view.icon())
        if reply == QMessageBox.Yes:
            on_confirm()
        else:
            self.destroy()
        self.show() 

def __init__(self, controller):
        super().__init__(controller)
        self.controller = controller
        self.setTitle('Site management')
        self.setMinimumSize(300, 300)
        self.setAcceptDrops(True)
                
        # exit connection lost because of the following lines
        layout = QtWidgets.QGridLayout(self)
        pixmap = controller.pixmaps['default']['site']
        label = QLabel(self)
        label.setMaximumSize(200, 200)
        label.subtype = 'site'
        label.setPixmap(pixmap)
        label.setScaledContents(True)
        label.show()
        label.setAttribute(Qt.WA_DeleteOnClose)
        layout.addWidget(label, 0, 0) 

def __init__(self, controller):
        super().__init__(controller)
        self.controller = controller
        self.setTitle('Object creation')
        self.setMinimumSize(300, 300)
        self.setAcceptDrops(True)
                
        # exit connection lost because of the following lines
        layout = QtWidgets.QGridLayout(self)
        for index, subtype in enumerate(internal_node_subtype):
            pixmap = controller.pixmaps['default'][subtype]
            label = QLabel(self)
            label.setMaximumSize(100, 100)
            label.subtype = subtype
            label.setPixmap(pixmap)
            label.setScaledContents(True)
            label.show()
            label.setAttribute(Qt.WA_DeleteOnClose)
            layout.addWidget(label, index // 2, index % 2) 

def __init__(self, controller):
        super().__init__(controller)
        self.controller = controller
        self.setTitle('Node creation')
        self.setMinimumSize(300, 300)
        self.setAcceptDrops(True)
                
        # exit connection lost because of the following lines
        layout = QtWidgets.QGridLayout(self)
        for index, subtype in enumerate(network_node_subtype):
            pixmap = controller.pixmaps['default'][subtype]
            label = QLabel(self)
            label.setMaximumSize(50, 50)
            label.subtype = subtype
            label.setPixmap(pixmap)
            label.setScaledContents(True)
            label.show()
            label.setAttribute(Qt.WA_DeleteOnClose)
            layout.addWidget(label, index // 4, index % 4) 

def __init__(self, parent):

        super().__init__()
        self.mod_path = os.path.dirname(Pythonic.__file__)

        self.setAttribute(Qt.WA_DeleteOnClose)
        self.parent = parent
        self.label = QLabel()
        self.label.setPixmap(QPixmap(join(self.mod_path, 'images/tmp.png')).scaled(160, 80))
        self.setAcceptDrops(True)
        self.type = None
        self.config = None

        self.layout = QHBoxLayout()
        self.layout.setContentsMargins(20, 30, 30, 30)

        self.icon_bar = IconBar()
        self.icon_bar.setVisible(False)

        self.layout.addWidget(self.label)
        self.layout.addWidget(self.icon_bar)

        self.setLayout(self.layout) 

def __init__(self, filename="", parent=None):
        super().__init__(parent)
        self.ui = Ui_DialogCSVImport()
        self.ui.setupUi(self)
        self.setAttribute(Qt.WA_DeleteOnClose)
        self.setWindowFlags(Qt.Window)

        self.ui.btnAutoDefault.hide()

        completer = QCompleter()
        completer.setModel(QDirModel(completer))
        self.ui.lineEditFilename.setCompleter(completer)

        self.filename = None  # type: str
        self.ui.lineEditFilename.setText(filename)
        self.update_file()

        self.ui.tableWidgetPreview.setColumnHidden(self.COLUMNS["T"], True)
        self.update_preview()

        self.create_connects() 

def on_print_requested(self, frame):
        """Handle printing when requested via javascript."""
        printdiag = QPrintDialog()
        printdiag.setAttribute(Qt.WA_DeleteOnClose)
        printdiag.open(lambda: frame.print(printdiag.printer())) 

def msgbox(parent, title, text, *, icon, buttons=QMessageBox.Ok,
           on_finished=None, plain_text=None):
    """Display a QMessageBox with the given icon.

    Args:
        parent: The parent to set for the message box.
        title: The title to set.
        text: The text to set.
        buttons: The buttons to set (QMessageBox::StandardButtons)
        on_finished: A slot to connect to the 'finished' signal.
        plain_text: Whether to force plain text (True) or rich text (False).
                    None (the default) uses Qt's auto detection.

    Return:
        A new QMessageBox.
    """
    if objects.args.no_err_windows:
        print('Message box: {}; {}'.format(title, text), file=sys.stderr)
        return DummyBox()

    box = QMessageBox(parent)
    box.setAttribute(Qt.WA_DeleteOnClose)
    box.setIcon(icon)
    box.setStandardButtons(buttons)
    if on_finished is not None:
        box.finished.connect(on_finished)
    if plain_text:
        box.setTextFormat(Qt.PlainText)
    elif plain_text is not None:
        box.setTextFormat(Qt.RichText)
    box.setWindowTitle(title)
    box.setText(text)
    box.show()
    return box 

def __init__(self, debug, text, parent=None):
        super().__init__(debug, parent)
        self._log = text
        self.setAttribute(Qt.WA_DeleteOnClose)
        self._set_crash_info()
        self._type, self._func = parse_fatal_stacktrace(self._log) 

def __init__(self, pages, cmdhist, qobjects, parent=None):
        super().__init__(False, parent)
        self.setAttribute(Qt.WA_DeleteOnClose)
        self._pages = pages
        self._cmdhist = cmdhist
        self._qobjects = qobjects
        self._set_crash_info() 

def __init__(self, parent, title, msg):
        """
        * :param parent: Parent window
        * :param msg:str
        * :param on_confirm: Function to execute omit parenthesis ()
        """
        super().__init__()
        self.setAttribute(Qt.WA_DeleteOnClose, True)
        self.setWindowTitle(title)
        QMessageBox.information(parent, title, msg, QMessageBox.Ok)
        self.show() 

def __init__(self, process_thread):
        super(AnalysisProgress, self).__init__()
        self.ui = Ui_AnalysisProgress()
        self.ui.setupUi(self)
        self.ui.progressBar.setValue(0)

        self.setAttribute(Qt.WA_DeleteOnClose)

        self.process_thread = process_thread
        self.startRecieverThread()

        self.process_thread.task_done.connect(self.task_done)
        self.process_thread.task_done.connect(self.reciever.break_run)

        self.process_thread.start() 

def appCall(self, name):
        appFun, label = widget_lists[name]
        ui = appFun()
        ui.setWindowTitle(label)
        ui.show()
        ui.setAttribute(Qt.WA_DeleteOnClose) 

def __init__(self, message, position):

        super().__init__()
        self.setMinimumSize(400, 300)
        self.setWindowFlags(Qt.Window)
        self.setAttribute(Qt.WA_DeleteOnClose, True)
        self.message = message
        self.position = position
        self.initUI()
        self.raiseWindow() 

def __init__(self, parent):
        super().__init__(parent)
        self.setMinimumSize(400, 500)
        self.setWindowFlags(Qt.Window)
        self.setWindowModality(Qt.WindowModal)
        self.setAttribute(Qt.WA_DeleteOnClose, True)

        logging.debug('ElementEditor::__init__() called') 

def __init__(self, parent):

        super().__init__(parent)
        self.parent = parent
        self.setAttribute(Qt.WA_DeleteOnClose, True)
        self.timestamp = strftime('%H:%M:%S', localtime()) 

def __init__(self, message, source):

        super().__init__()
    
        self.setAttribute(Qt.WA_DeleteOnClose, True)
        self.source = source
        self.message = message 

def __init__(self, scores, comp):
        super().__init__()
        self.initUI(scores, comp)
        self.setAttribute(Qt.WA_DeleteOnClose) 

def __init__(self, parent = None, aw = None):
        super(DTApidDlgControl,self).__init__(parent, aw)
        self.setModal(True)
        self.setAttribute(Qt.WA_DeleteOnClose)
        self.setWindowTitle(QApplication.translate("Form Caption","Delta DTA PID Control",None))
        self.status = QStatusBar()
        self.status.setSizeGripEnabled(False)
        self.status.showMessage(QApplication.translate("StatusBar","Work in Progress",None),5000)
        svlabel = QLabel(QApplication.translate("Label", "SV", None))
        self.svedit = QLineEdit(str(self.aw.dtapid.dtamem["sv"][0]))
        self.svedit.setValidator(self.aw.createCLocaleDoubleValidator(0., 999.,1, self.svedit))
        readsvbutton = QPushButton(QApplication.translate("Button","Read", None))
        writesvbutton = QPushButton(QApplication.translate("Button","Write", None))
        readsvbutton.clicked.connect(self.readsv)
        writesvbutton.clicked.connect(self.writesv)
        tab1Layout = QGridLayout()
        tab1Layout.addWidget(svlabel,0,0)
        tab1Layout.addWidget(self.svedit,0,1)
        tab1Layout.addWidget(readsvbutton,0,2)
        tab1Layout.addWidget(writesvbutton,0,3)
        ############################
        TabWidget = QTabWidget()
        C1Widget = QWidget()
        C1Widget.setLayout(tab1Layout)
        TabWidget.addTab(C1Widget,QApplication.translate("Tab","General",None))
        mainlayout = QVBoxLayout()
        mainlayout.addWidget(self.status,0)
        mainlayout.addWidget(TabWidget,1)
        self.setLayout(mainlayout) 

def __init__(self, parent=None, aw = None):
        super(ArtisanDialog,self).__init__(parent)
        self.aw = aw # the Artisan application window
        
        # IMPORTANT NOTE: if dialog items have to be access after it has been closed, this Qt.WA_DeleteOnClose attribute 
        # has to be set to False explicitly in its initializer (like in comportDlg) to avoid the early GC and one might
        # want to use a dialog.deleteLater() call to explicitly have the dialog and its widgets GCe
        # or rather use sip.delete(dialog) if the GC via .deleteLater() is prevented by a link to a parent object (parent not None)
        self.setAttribute(Qt.WA_DeleteOnClose, True)

#        if platf == 'Windows':
# setting those Windows flags could be the reason for some instabilities on Windows
#            windowFlags = self.windowFlags()
#        #windowFlags &= ~Qt.WindowContextHelpButtonHint # remove help button
#        #windowFlags &= ~Qt.WindowMaximizeButtonHint # remove maximise button
#        #windowFlags &= ~Qt.WindowMinMaxButtonsHint  # remove min/max combo
#        #windowFlags |= Qt.WindowMinimizeButtonHint  # Add minimize  button
#        windowFlags |= Qt.WindowSystemMenuHint  # Adds a window system menu, and possibly a close button
#            windowFlags |= Qt.WindowMinMaxButtonsHint  # add min/max combo
#            self.setWindowFlags(windowFlags)

        # configure standard dialog buttons
        self.dialogbuttons = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel,Qt.Horizontal)
        self.dialogbuttons.button(QDialogButtonBox.Ok).setDefault(True)
        self.dialogbuttons.button(QDialogButtonBox.Ok).setAutoDefault(True)
        self.dialogbuttons.button(QDialogButtonBox.Cancel).setDefault(False)
        self.dialogbuttons.button(QDialogButtonBox.Cancel).setAutoDefault(False)
        self.dialogbuttons.button(QDialogButtonBox.Ok).setFocusPolicy(Qt.StrongFocus) # to add to tab focus switch
        if self.aw.locale not in self.aw.qtbase_locales:
            self.dialogbuttons.button(QDialogButtonBox.Ok).setText(QApplication.translate("Button","OK", None))
            self.dialogbuttons.button(QDialogButtonBox.Cancel).setText(QApplication.translate("Button","Cancel",None))
        # add additional CMD-. shortcut to close the dialog
        self.dialogbuttons.button(QDialogButtonBox.Cancel).setShortcut(QKeySequence("Ctrl+."))
        # add additional CMD-W shortcut to close this dialog (ESC on Mac OS X)
        cancelAction = QAction(self, triggered=lambda _:self.dialogbuttons.rejected.emit())
        try:
            cancelAction.setShortcut(QKeySequence.Cancel)
        except:
            pass
        self.dialogbuttons.button(QDialogButtonBox.Cancel).addActions([cancelAction]) 

def __init__(self, message_type: MessageType, parent=None):
        super().__init__(parent)
        self.ui = Ui_DialogMessageType()
        self.ui.setupUi(self)
        self.setAttribute(Qt.WA_DeleteOnClose)
        self.setWindowFlags(Qt.Window)

        operator_descriptions = list(OPERATION_DESCRIPTION.values())
        operator_descriptions.sort()

        self.setWindowTitle(self.tr("Rules for {}".format(message_type.name)))
        self.message_type = message_type
        self.original_ruleset = copy.deepcopy(message_type.ruleset)
        self.original_assigned_status = message_type.assigned_by_ruleset
        self.ruleset_table_model = RulesetTableModel(message_type.ruleset, operator_descriptions, parent=self)
        self.ui.tblViewRuleset.setModel(self.ruleset_table_model)

        self.ui.btnRemoveRule.setEnabled(len(message_type.ruleset) > 0)
        self.set_ruleset_ui_status()

        self.ui.rbAssignAutomatically.setChecked(self.message_type.assigned_by_ruleset)
        self.ui.rbAssignManually.setChecked(self.message_type.assign_manually)

        self.ui.tblViewRuleset.setItemDelegateForColumn(2, ComboBoxDelegate(["Bit", "Hex", "ASCII"], parent=self))
        self.ui.tblViewRuleset.setItemDelegateForColumn(3, ComboBoxDelegate(operator_descriptions, parent=self))

        for i in range(len(message_type.ruleset)):
            self.open_editors(i)

        self.ui.cbRulesetMode.setCurrentIndex(self.message_type.ruleset.mode.value)

        self.create_connects()
        self.restoreGeometry(settings.read("{}/geometry".format(self.__class__.__name__), type=bytes)) 

def __init__(self, parameters: list, modulation_type: str, parent=None):
        super().__init__(parent)
        self.ui = Ui_DialogModulationParameters()
        self.ui.setupUi(self)
        self.setAttribute(Qt.WA_DeleteOnClose)
        self.setWindowFlags(Qt.Window)

        self.parameters = parameters
        self.num_bits = int(math.log2(len(parameters)))

        if "FSK" in modulation_type:
            self.ui.tblSymbolParameters.setItemDelegateForColumn(1, KillerSpinBoxDelegate(-1e12, 1e12, self))
            self.ui.tblSymbolParameters.horizontalHeaderItem(1).setText("Frequency in Hz")
        elif "ASK" in modulation_type:
            self.ui.tblSymbolParameters.horizontalHeaderItem(1).setText("Amplitude")
            self.ui.tblSymbolParameters.setItemDelegateForColumn(1, SpinBoxDelegate(0, 100, self, "%"))
        elif "PSK" in modulation_type:
            self.ui.tblSymbolParameters.setItemDelegateForColumn(1, SpinBoxDelegate(-360, 360, self, "°"))
            self.ui.tblSymbolParameters.horizontalHeaderItem(1).setText("Phase")

        fmt = "{0:0" + str(self.num_bits) + "b}"
        self.ui.tblSymbolParameters.setRowCount(len(parameters))
        for i, parameter in enumerate(parameters):
            item = QTableWidgetItem(fmt.format(i))
            font = item.font()
            font.setBold(True)
            item.setFont(font)
            item.setFlags(Qt.ItemIsEnabled)
            self.ui.tblSymbolParameters.setItem(i, 0, item)

            item = QTableWidgetItem()
            item.setData(Qt.DisplayRole, self.parameters[i])
            self.ui.tblSymbolParameters.setItem(i, 1, item)
            self.ui.tblSymbolParameters.openPersistentEditor(self.ui.tblSymbolParameters.item(i, 1))

        self.create_connects() 

def __init__(self, pause_threshold: int, message_length_divisor: int, parent=None):
        super().__init__(parent)
        self.ui = Ui_DialogAdvancedModSettings()
        self.ui.setupUi(self)
        self.setAttribute(Qt.WA_DeleteOnClose)
        self.setWindowFlags(Qt.Window)

        self.pause_threshold = pause_threshold
        self.message_length_divisor = message_length_divisor

        self.ui.spinBoxPauseThreshold.setValue(pause_threshold)
        self.ui.spinBoxMessageLengthDivisor.setValue(message_length_divisor)

        self.create_connects() 

def __init__(self, project_manager: ProjectManager, is_tx: bool, continuous_send_mode=False, parent=None, testing_mode=False):
        super().__init__(parent)
        self.is_tx = is_tx
        self.update_interval = 25

        # This flag is needed. Will cause memory leak otherwise.
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.setWindowFlags(Qt.Window)
        self.testing_mode = testing_mode

        self.ui = Ui_SendRecvDialog()
        self.ui.setupUi(self)
        util.set_splitter_stylesheet(self.ui.splitter)

        self.ui.txtEditErrors.setFont(util.get_monospace_font())

        self.graphics_view = None  # type: QGraphicsView

        self.backend_handler = BackendHandler()

        self.ui.btnStop.setEnabled(False)
        self.ui.btnSave.setEnabled(False)

        self.start = 0

        self.device_settings_widget = DeviceSettingsWidget(project_manager, is_tx,
                                                           backend_handler=self.backend_handler,
                                                           continuous_send_mode=continuous_send_mode)
        self.ui.scrollAreaWidgetContents_2.layout().insertWidget(0, self.device_settings_widget)

        if testing_mode:
            self.device_settings_widget.ui.cbDevice.setCurrentText(NetworkSDRInterfacePlugin.NETWORK_SDR_NAME)

        self.timer = QTimer(self)
        self.restoreGeometry(settings.read("{}/geometry".format(self.__class__.__name__), type=bytes))

        self.ui.splitter.setSizes([int(0.4 * self.width()), int(0.6 * self.width())]) 

def __init__(self, signal, parent=None):
        super().__init__(parent)
        self.signal = signal
        self.ui = Ui_SignalDetails()
        self.ui.setupUi(self)
        self.setAttribute(Qt.WA_DeleteOnClose)
        self.setWindowFlags(Qt.Window)

        file = self.signal.filename

        self.ui.lblName.setText(self.signal.name)

        if os.path.isfile(file):
            self.ui.lblFile.setText(file)
            self.ui.lblFileSize.setText(locale.format_string("%.2fMB", os.path.getsize(file) / (1024 ** 2)))
            self.ui.lFileCreated.setText(time.ctime(os.path.getctime(file)))
        else:
            self.ui.lblFile.setText(self.tr("signal file not found"))
            self.ui.lblFileSize.setText("-")
            self.ui.lFileCreated.setText("-")

        self.ui.lblSamplesTotal.setText("{0:n}".format(self.signal.num_samples).replace(",", " "))
        self.ui.dsb_sample_rate.setValue(self.signal.sample_rate)
        self.set_duration()

        self.ui.dsb_sample_rate.valueChanged.connect(self.on_dsb_sample_rate_value_changed)
        self.restoreGeometry(settings.read("{}/geometry".format(self.__class__.__name__), type=bytes)) 

def dialog_ui(self) -> QDialog:
        if self.__dialog_ui is None:
            dir_name = os.path.dirname(os.readlink(__file__)) if os.path.islink(__file__) else os.path.dirname(__file__)

            logging.getLogger().setLevel(logging.WARNING)
            self.__dialog_ui = uic.loadUi(os.path.realpath(os.path.join(dir_name, "insert_sine_dialog.ui")))
            logging.getLogger().setLevel(logger.level)

            self.__dialog_ui.setAttribute(Qt.WA_DeleteOnClose)
            self.__dialog_ui.setModal(True)
            self.__dialog_ui.doubleSpinBoxAmplitude.setValue(self.__amplitude)
            self.__dialog_ui.doubleSpinBoxFrequency.setValue(self.__frequency)
            self.__dialog_ui.doubleSpinBoxPhase.setValue(self.__phase)
            self.__dialog_ui.doubleSpinBoxSampleRate.setValue(self.__sample_rate)
            self.__dialog_ui.doubleSpinBoxNSamples.setValue(self.__num_samples)
            self.__dialog_ui.lineEditTime.setValidator(
                QRegExpValidator(QRegExp(r"[0-9]+([nmµ]?|([\.,][0-9]{1,3}[nmµ]?))?$"))
            )

            scene_manager = SceneManager(self.dialog_ui.graphicsViewSineWave)
            self.__dialog_ui.graphicsViewSineWave.scene_manager = scene_manager
            self.insert_indicator = scene_manager.scene.addRect(0, -2, 0, 4,
                                                                QPen(QColor(Qt.transparent), 0),
                                                                QBrush(self.INSERT_INDICATOR_COLOR))
            self.insert_indicator.stackBefore(scene_manager.scene.selection_area)

            self.set_time()

        return self.__dialog_ui 

def __init__(self, debug, parent=None):
        """Constructor for CrashDialog.

        Args:
            debug: Whether --debug was given.
        """
        super().__init__(parent)
        # We don't set WA_DeleteOnClose here as on an exception, we'll get
        # closed anyways, and it only could have unintended side-effects.
        self._crash_info = []  # type: typing.List[typing.Tuple[str, str]]
        self._btn_box = None
        self._paste_text = None
        self.setWindowTitle("Whoops!")
        self.resize(QSize(640, 600))
        self._vbox = QVBoxLayout(self)

        http_client = httpclient.HTTPClient()
        self._paste_client = pastebin.PastebinClient(http_client, self)
        self._pypi_client = autoupdate.PyPIVersionClient(self)
        self._paste_client.success.connect(self.on_paste_success)
        self._paste_client.error.connect(self.show_error)

        self._init_text()

        self._init_contact_input()

        info = QLabel("What were you doing when this crash/bug happened?")
        self._vbox.addWidget(info)
        self._info = QTextEdit()
        self._info.setTabChangesFocus(True)
        self._info.setAcceptRichText(False)
        self._info.setPlaceholderText("- Opened http://www.example.com/\n"
                                      "- Switched tabs\n"
                                      "- etc...")
        self._vbox.addWidget(self._info, 5)

        self._vbox.addSpacing(15)
        self._debug_log = QTextEdit()
        self._debug_log.setTabChangesFocus(True)
        self._debug_log.setAcceptRichText(False)
        self._debug_log.setLineWrapMode(QTextEdit.NoWrap)
        self._debug_log.hide()
        self._fold = miscwidgets.DetailFold("Show log", self)
        self._fold.toggled.connect(self._debug_log.setVisible)
        if debug:
            self._fold.toggle()
        self._vbox.addWidget(self._fold)
        self._vbox.addWidget(self._debug_log, 10)
        self._vbox.addSpacing(15)

        self._init_checkboxes()
        self._init_info_text()
        self._init_buttons() 

def __init__(self, config):
        super().__init__()
        self.config = config
        if config["window"]["backgroundImage"]:
            # Transparency must be set to True
            self.label = QLabel(self)
            self.setObjectName("JAKWindow")
            self.setBackgroundImage(config["window"]["backgroundImage"])
        self.video_corner = False
        self.center = getScreenGeometry().center()
        self.setWindowTitle(config['window']["title"])
        self.setWindowFlags(config['window']["setFlags"])
        self.setWAttribute(Qt.WA_DeleteOnClose)
        for attr in config['window']["setAttribute"]:
            self.setWAttribute(attr)

        if config['window']["state"]:
            self.setWindowState(config['window']["state"])

        if config['window']["icon"] and os.path.isfile(config['window']["icon"]):
            self.icon = QIcon(config['window']["icon"])
        else:
            print(f"icon not found: {config['window']['icon']}")
            print("loading default icon:")
            self.icon = QIcon.fromTheme("applications-internet")

        view = Instance.retrieve("view")
        if view:
            self.view = view
            self.setCentralWidget(self.view)
            self.view.iconChanged.connect(self._icon_changed)
            if config['webview']["online"]:
                self.view.page().titleChanged.connect(self.status_message)

        if config['window']["transparent"]:
            # Set Background Transparency
            self.setWAttribute(Qt.WA_TranslucentBackground)
            self.setAutoFillBackground(True)

        if config['webview']["online"]:
            # Do not display toolbar or system tray offline
            if config['window']["toolbar"]:
                self.toolbar = JToolbar(self, config['window']["toolbar"], self.icon, config['window']["title"])
                self.addToolBar(self.toolbar)
            self.setMenuBar(Menu(self, config['window']["menus"]))
        else:
            if config['window']["showHelpMenu"]:
                self.setMenuBar(Menu(self, config['window']["menus"]))
                self.view.page().titleChanged.connect(self.status_message)

        if config['window']["SystemTrayIcon"]: 
            self.system_tray = SystemTrayIcon(self.icon, self, config)
                
        if config["debug"]:
            self.showInspector()                       
        self._set_icons()