<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Sorry, if wasting bandwidth, as I have found out that the object to address had to be "/org/freedesktop/Notifications" and not "/". Then introspection and invocation of methods works as expected. Still another question: are there general rules whether a "default object path" should exist and what the format of such a "default object path" should be, in the case that one cannot research/find out what the object path should be in order to call Introspect()? [So far I had wrongly assumed a root path "/", but it could also be the case that the bus name is used, where the dots get replaced by slashes plus inserting a slash at the beginning of the object path.] ---rony On 17.07.2011 13:02, rony wrote: <blockquote cite="mid:4E22C13A.40702@wu.ac.at" type="cite"> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> Using the openmoko introspection file and using e.g. the method org.freedesktop.Notifications.GetServerInformation() yields an org.freedesktop.DBus.Error.UnknownMethod on Ubuntu. So it is probable that supplying an introspection file without interfaces is intentional, because e.g. that service is deprecated (?), but still important to be available or that its internals got changed, but the public should not know of it, or ... ? (There are no means to communicate version or deprecation information via the introspection file.) Still, is there a place where the official org.freedesktop introspection files can be downloaded? ---rony On 17.07.2011 11:44, rony wrote: <blockquote cite="mid:4E22AEEC.9070503@wu.ac.at" type="cite"> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> Maybe this is a quesiton which should be directed to Ubuntu, maybe there is a rule someplace, that I have not found so far. When using Introspect e.g. on org.freedesktop.Notifications in a session connection, the data that gets returned does not possess any interface descriptions, but rather: <blockquote> <pre><!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN" <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd"</a>> <node> <node name="org"/> </node> </pre> </blockquote> Googling a little bit yields e.g. <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="http://wiki.openmoko.org/wiki/Org_freedesktop_Notifications._org_freedesktop_Notifications"><http://wiki.openmoko.org/wiki/Org_freedesktop_Notifications._org_freedesktop_Notifications></a>, which is from 2008. So there are the introspect xml files, just not on the Ubuntu installation? Or are there other reasons, that can explain this observation? --- Maybe another question related to introspection xml-files: are the org.freedesktop-DBUS-introspection files available via the web? If so, where? If not, where can one retrieve those introspection files to all of the org.freedesktop-DBUS services? ---rony </blockquote> </blockquote> </body> </html>