Connecting dbus signal iwth Qt Apps

[ChrisW67]

Deliberate cross-posting is unlikely to win you any favours.

[yuvaraj.addu]

Hi All,

Could anybody help me on this issue?

Thanks

Yuvaraj R

[ChrisW67]

You have a missing close quote in your code snippet.

Does Qt issue a warning about your connection when you run the program? Is stateChanged() declared as a slot?

[yuvaraj.addu]

Hi,

yes i declared stateChanged.

I suspect, problem with


bool val= this->connection().connect(service,path,QString("/myInterface),QString("PropertyChanged"),QString("Q String,QDBusVariant"),this,SLOT(stateChanged(QStri ng,QVariant)));



Thanks


Yuvaraj R

[ChrisW67]

You still have a missing double-quote in your code example. You didn't answer my question regarding warnings.

I don't use Dbus but a cursory reading of the docs would indicate that your third argument (interface) is not correct. It looks like a path and not a dotted DBus interface name as, for example, you see in the D-Bus Remote Controlled Car Example.

You also say that the Dbus signature is "string name, variant value" but that is not the same as the signature in your call: "Q String,QDBusVariant". I don't know if this is correct or not.

[yuvaraj.addu]

Hi,

I solved this issue 4 days back itself . I forgot to update here

Solution:

QDBusConnection::systemBus().connect(SERVICE,path,INTERFACE,"PropertyChanged",this,SLOT(stateChanged(QString,QDBusVariant)));

QDBusConnection::systemBus().connect(SERVICE,path,INTERFACE,"PropertyChanged",this,SLOT(stateChanged(QString,QDBusVariant)));

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Thanks

Yuvaraj R