[Qt-interest] Fwd: A Qt-dbus question

[振华张]

Hi Jeroen,

2010/9/3 Jeroen De Wachter <Jeroen.DeWachter at elis.ugent.be>:
> Hello,
>
> On Fri, 2010-09-03 at 17:59 +0800, 振华张 wrote:
>> Hi Jeroen,
>>
>> 2010/9/3 Jeroen De Wachter <Jeroen.DeWachter at elis.ugent.be>:
>> > I overhauled your code to make it work...
>> > I've had to change quite a bit though, so you might not recognize it :-s
>>
>> Thanks very much for your help! It's really helpful to resolve the
>> problem in such a short time.
>
> Sure, no problem
>
>> > I replaced the QArrayOfData struct with a typedef, so the default
>> > streaming operators handle the QList<MyData> (you will see that there
>> > are no extra streaming operators for QArrayOfData)
>>
>> QArrayOfData actually is a bad idea. Looks like we could simply use:
>>
>> struct MyData { ...};
>> Q_DECLARE_METATYPE(MyData)
>> Q_DECLARE_METATYPE(QList<MyData>)
>
> Actually, that will cause trouble when you put it in the XML description
> of your service... the XML parser won't be able to deal with the < and >
> characters in the data (I think I mentioned this before?) And I don't
> think changing them to &lt; and &gt; worked for me.
>
> I'm also not sure if the Q_DECLARE_METATYPE macro is able to deal with
> templates... I think I ran into trouble there too. Or maybe the actual
> type registration didn't work, I don't recall precisely. I do remember
> there were valid reasons to use the typedef though...

Okay. At least you have more experience than me on that, so I fully
take your suggestions. ;-)

Thanks,
Zhenhua

> Kind regards,
>
> Jeroen
>
>