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pyudev.pyqt4
============
PyQt4 integration.
:class:`QUDevMonitorObserver` integrates device monitoring into the PyQt4_
mainloop by turing device events into Qt signals.
:mod:`PyQt4.QtCore` from PyQt4_ must be available when importing this
module.
.. _PyQt4: http://riverbankcomputing.co.uk/software/pyqt/intro
.. moduleauthor:: Sebastian Wiesner <lunaryorn@gmail.com>
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An observer for device events integrating into the :mod:`PyQt4` mainloop.
This class inherits :class:`~PyQt4.QtCore.QObject` to turn device events
into Qt signals:
>>> from pyudev import Context, Monitor
>>> from pyudev.pyqt4 import QUDevMonitorObserver
>>> context = Context()
>>> monitor = Monitor.from_netlink(context)
>>> monitor.filter_by(subsystem='input')
>>> observer = QUDevMonitorObserver(monitor)
>>> def device_connected(device):
... print('{0!r} added'.format(device))
>>> observer.deviceAdded.connect(device_connected)
>>> monitor.start()
This class is a child of :class:`~PyQt4.QtCore.QObject`.
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Observe the given ``monitor`` (a :class:`~pyudev.Monitor`):
``parent`` is the parent :class:`~PyQt4.QtCore.QObject` of this
object. It is passed unchanged to the inherited constructor of
:class:`~PyQt4.QtCore.QObject`.
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