If gtk.Application is using its D-Bus backend then this function will
return the gio.DBusConnection being used for uniqueness and
communication with the desktop environment and other instances of the
application.
If gtk.Application is not using D-Bus then this function will return
NULL. This includes the situation where the D-Bus backend would
normally be in use but we were unable to connect to the bus.
This function must not be called before the application has been
registered. See Application.getIsRegistered.
Gets the gio.DBusConnection being used by the application, or NULL.
If gtk.Application is using its D-Bus backend then this function will return the gio.DBusConnection being used for uniqueness and communication with the desktop environment and other instances of the application.
If gtk.Application is not using D-Bus then this function will return NULL. This includes the situation where the D-Bus backend would normally be in use but we were unable to connect to the bus.
This function must not be called before the application has been registered. See Application.getIsRegistered.