.. _ref-dbus:

The DBus Support Module
=======================

The DBus support module is installed as :mod:`dbus.mainloop.qt` and provides
support for the Qt event loop to the standard ``dbus-python`` language
bindings package.  The module's API is almost identical to that of the
:mod:`dbus.mainloop.glib` modules that provides support for the GLib event loop.

The :mod:`dbus.mainloop.qt` module contains the following function.

.. function:: DBusQtMainLoop(set_as_default=False)

    Create a ``dbus.mainloop.NativeMainLoop`` object that uses the the Qt event
    loop.

    :param set_as_default:
        is optionally set to make the main loop instance the default for all
        new Connection and Bus instances.  It may only be specified as a
        keyword argument, and not as a positional argument.

The following code fragment is all that is normally needed to set up the
standard ``dbus-python`` language bindings package to be used with PyQt::

    from dbus.mainloop.qt import DBusQtMainLoop

    DBusQtMainLoop(set_as_default=True)