Load window layout settings from userconfig-based configuration
        with *prefix*, under *section*
        default: if True, do not restore inner layout

def load_window_settings(self, prefix, default=False, section='main'):
        """Load window layout settings from userconfig-based configuration
        with *prefix*, under *section*
        default: if True, do not restore inner layout"""
        get_func = CONF.get_default if default else CONF.get
        window_size = get_func(section, prefix+'size')
        prefs_dialog_size = get_func(section, prefix+'prefs_dialog_size')
        if default:
            hexstate = None
        else:
            hexstate = get_func(section, prefix+'state', None)
        pos = get_func(section, prefix+'position')

        # It's necessary to verify if the window/position value is valid
        # with the current screen. See issue 3748
        width = pos[0]
        height = pos[1]
        screen_shape = QApplication.desktop().geometry()
        current_width = screen_shape.width()
        current_height = screen_shape.height()
        if current_width < width or current_height < height:
            pos = CONF.get_default(section, prefix+'position')

        is_maximized =  get_func(section, prefix+'is_maximized')
        is_fullscreen = get_func(section, prefix+'is_fullscreen')
        return hexstate, window_size, prefs_dialog_size, pos, is_maximized, \
               is_fullscreen