You need following:
https://github.com/CODeRUS/harbour-lgremote-webos/blob/master/qml/main.qml#L58
------ Исходное сообщение ------
От: "jerome levreau" <levreau.jer...@vostoksystem.eu>
Кому: "Sailfish OS Developers" <devel@lists.sailfishos.org>
Отправлено: 26.10.2016 19:58:12
Тема: [SailfishDevel] listening for volume change
hi everyone,
Here where I'm stuck : In my audio app, for a new functionality I would
like to control volume. Now I'm trying to get a response (dbus signal)
when user is changing volume with button (physical).
My app has mpris2 control, I monitoring a read to the volume property
(of org.mpris.MediaPlayer2.Player ) but never a write. I tried to look
for a propertiesChanged in org.freedesktop.DBus.Properties, I'm seeing
response in playback status, position, metadata, etc.. but never from
volume change.
Right now, I'm looking into pulseaudio with com.meego.mainvolume2
https://wiki.merproject.org/wiki/Nemo/Audio/MainVolume
I connect to pulse, I read current volume (CurrentStep), I can see it's
changing between my tests, but my slot to the StepsUpdated signal never
been called.
Here my current code :
//******************************************
QDBusConnection bus = QDBusConnection::sessionBus();
QDBusMessage call = QDBusMessage::createMethodCall("org.PulseAudio1",
"/org/pulseaudio/server_lookup1",
"org.freedesktop.DBus.Properties",
"Get" );
call << "org.PulseAudio.ServerLookup1" << "Address";
QDBusReply<QDBusVariant> r = bus.call(call);
if (r.isValid()) {
pulse = new QDBusConnection(QDBusConnection::connectToPeer(
r.value().variant().toString(),
"org.PulseAudio1"));
//****** this is working ****
call = QDBusMessage::createMethodCall("",
"/com/meego/mainvolume2",
"org.freedesktop.DBus.Properties",
"Get");
call << "com.Meego.MainVolume2" << "CurrentStep";
qDebug() << "CurrentStep : " <<
pulse->call(call).value().variant().toUInt();
//***** connect, but never raise a callback ****
//***** doing something similar with org.nemomobile.voicecall.VoiceCall
and it's working fine
pulse->connect("",
"/com/meego/mainvolume2",
"com.Meego.MainVolume2",
"StepsUpdated",
this,
SLOT(StepsUpdated(uint,uint)));
}
// *** my public slot code, never getting an answer
void modeNuitService::StepsUpdated(uint StepCount, uint CurrentStep) {
qDebug() << "StepsUpdated " << StepCount << " " << CurrentStep;
}
//******************************************
What do you think ? bad argument, bad method signature or just bad
solution ?
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