我仍然是使用 Qt4/Dbus 的新手,我正在尝试使用 Qt API 获取访问点列表以发送/接收 Dbus 消息。我收到以下错误:
org.freedesktop.DBus.Error.UnknownMethod
Method "GetAccessPoint" with signature "" on interface "org.freedesktop.NetworkManager.Device.Wireless" doesn't exist
代码是:
QStringList *netList = new QStringList();
QDBusConnection sysbus = QDBusConnection::systemBus();
QDBusInterface callNM("org.freedesktop.NetworkManager","/org/freedesktop/NetworkManager","org.freedesktop.NetworkManager.Device.Wireless",sysbus);
if(callNM.isValid())
{
QDBusMessage query= callNM.call("GetAccessPoints");
if(query.type() == QDBusMessage::ReplyMessage)
{
QDBusArgument arg = query.arguments().at(0).value<QDBusArgument>();
arg.beginArray();
while(!arg.atEnd())
{
QString element = qdbus_cast<QString>(arg);
netList->append(element);
}
arg.endArray();
}else{
std::cout<< query.errorName().toStdString() << std::endl;
std::cout<< query.errorMessage().toStdString() << std::endl;
}
int x= netList->size();
for(int y=0; y< x ;y++)
{
widget.avail_nets->addItem(netList->at(y)); // just print it to my gui from the stringlist array
}
}else{
std::cout<<"fail" << std::endl;
}
怎么了?我的命名是正确的,我遵循这里的确切规格