[SOLVED] QtDBus complex types in Variant

chrisco

Anybody have an idea how to use complex types (struct, dicts, arrays) in variants?

E.g. DBus method:
@
<method name="RequestResultList">
.
.
<arg name="resultListWindow" type="a(uuqa(sqv))" direction="out">
<doc>
<line>resultListWindow = array[struct(unique_id, distance, route_status, attributes)]</line>
.
.
<line>type = enum(INVALID,STRING,INTEGER,COORDINATES ...)</line>
<line>value = value. The value depends on the attribute specifications and type.</line>
</doc>
</arg>
.
.
</method>
@

The 'v' variant can return a (ddi) struct in case of coordinates.
Registering (ddi) struct type and casting the returned QDBusVariant to that (ddi) struct does not seem to work.
Does anybody have an idea how to get complex types in 'v' variants working?

SGaist

Hi,

I am not dbus experimented, but did you look at the "QtDBus type system":http://qt-project.org/doc/qt-4.8/qdbustypesystem.html doc ?

chrisco

Hi. Yes, i know that page. Does not really contain helpful information about this particular case (getting complex types out of variant), but thanks for the reply.

SGaist

AFAIU (from the doc), for QDBusVariant to understand your structure, you have to register it first.

Did you do that ?

chrisco

Yes i did.

The following solution works:
https://bugreports.qt-project.org/browse/QTBUG-32227