On Tue, Jan 27, 2009 at 06:10, John Watlington <w...@laptop.org> wrote: > > On Jan 24, 2009, at 5:18 AM, Marco Pesenti Gritti wrote: > >> On Sat, Jan 24, 2009 at 5:23 AM, John Watlington <w...@laptop.org> >> wrote: >>> >>> What can I call from an activity (in python) to indicate that the >>> backlight >>> should be turned off ? >>> >>> I'm playing with a photoframe app, and want to have the ability to >>> deliberately >>> control the backlight level from the UI. >> >> See >> >> http://git.sugarlabs.org/projects/sugar/repos/mainline/blobs/master/ >> src/jarabe/model/screen.py >> >> Marco > > Thanks for the pointer. > > When using those functions I receive the following error message: > RuntimeError: To make asynchronous calls, receive signals or export > objects, D-Bus connections must > be attached to a main loop by passing mainloop=... to the constructor > or calling dbus.set_default_main_loop(...)
Is it an activity? Activities shouldn't need it, but you can see how the DS sets a main loop for dbus-python to use: http://git.sugarlabs.org/projects/sugar-datastore/repos/mainline/blobs/master/bin/datastore-service > It seems like a code fragment was missing from the file, > and in my particular application, I wouldn't mind if those calls were > synchronous --- how do I do so ? All the func calls in that example seem to be sync, and there's no signals neither. So perhaps what raises that issue is "follow_name_owner_changes=True"? I can imagine how that setting may require a loop, but in your case I think you can drop it. HTH, Tomeu > Cheers, > wad > > _______________________________________________ > Devel mailing list > Devel@lists.laptop.org > http://lists.laptop.org/listinfo/devel > _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
