dbus-cxx-devel

[Dbus-cxx-devel] How do I access properties of an Interface.

[roland r. <rro...@gm...>]

Hi,

Can someone help me understand, how I could access an Interfaces properties?
In general, I read that dbus-cxx attempts to provide high-level
dbus-binding. What are its limitation?

Given a DBus service, what things can I not do with dbus-cxx?

Thanks,
Roland

Re: [Dbus-cxx-devel] How do I access properties of an Interface.

[Rick L. V. Jr. <rvi...@cs...>]

roland roland wrote:
> Can someone help me understand, how I could access an Interfaces
> properties?

There are Interface and InterfaceProxy classes depending on whether you're
on server or client side.

I haven't written anything wrapping interface properties; just methods and
signals for now, since that's what I needed.

> In general, I read that dbus-cxx attempts to provide high-level
> dbus-binding. What are its limitation?

There are a number of aspects that still aren't wrapped... like properties
and Variants.

> Given a DBus service, what things can I not do with dbus-cxx?

I intentionally exposed the underlying dbus C library. Anything that isn't
supported yet in dbus-cxx can still be handled in the C library.


---

Rick

Re: [Dbus-cxx-devel] How do I access properties of an Interface.

[roland r. <rro...@gm...>]

Thanks Rick,

How do I access interface properties in dbus c ? Can you point me to an
example that does that? I found many example that demonstrate methods and
signals, but none that access properties.
I tried invoking "Get" method on "org.freedesktop.DBus.Properties", but that
returned "Method "Get" with signature "ss" on interface
"org.freedesktop.DBus.Properties" doesn't exist" ???

I might help contribute patches for this library. But first let me come up
to the mark.


On Thu, Feb 11, 2010 at 8:19 AM, Rick L. Vinyard, Jr.
<rvi...@cs...>wrote:

> roland roland wrote:
> > Can someone help me understand, how I could access an Interfaces
> > properties?
>
> There are Interface and InterfaceProxy classes depending on whether you're
> on server or client side.
>
> I haven't written anything wrapping interface properties; just methods and
> signals for now, since that's what I needed.
>
> > In general, I read that dbus-cxx attempts to provide high-level
> > dbus-binding. What are its limitation?
>
> There are a number of aspects that still aren't wrapped... like properties
> and Variants.
>
> > Given a DBus service, what things can I not do with dbus-cxx?
>
> I intentionally exposed the underlying dbus C library. Anything that isn't
> supported yet in dbus-cxx can still be handled in the C library.
>
>
> ---
>
> Rick
>
>
>
>

Re: [Dbus-cxx-devel] How do I access properties of an Interface.

[Rick L. V. Jr. <rvi...@cs...>]

roland roland wrote:
> Thanks Rick,
>
> How do I access interface properties in dbus c ? Can you point me to an
> example that does that? I found many example that demonstrate methods and
> signals, but none that access properties.

I'm not sure. I haven't looked into them yet.

Do you have control over the DBus interface, or do you need to access one
that someone else has specified?

If it's the former I would recommend using get/set methods as accessors.
If it's the latter, I'm not sure.

> I tried invoking "Get" method on "org.freedesktop.DBus.Properties", but
> that
> returned "Method "Get" with signature "ss" on interface
> "org.freedesktop.DBus.Properties" doesn't exist" ???
>

Possible. I haven't messed with properties yet.

If you get it figured out you might post a follow up for others.