sending QHostAddress over Qt Dbus

[Venkateswaran]

I tried to send QHostAddress over Qt Dbus but getting below error.

/aarch64-buildroot-linux-gnu/sysroot/usr/include/qt5/QtDBus/qdbusmetatype.h:68: error: no match for ‘operator<<’ (operand types are ‘QDBusArgument’ and ‘const QHostAddress’)
/aarch64-buildroot-linux-gnu/sysroot/usr/include/qt5/QtDBus/qdbusmetatype.h: In instantiation of ‘void qDBusMarshallHelper(QDBusArgument&, const T*) [with T = QHostAddress]’:
/aarch64-buildroot-linux-gnu/sysroot/usr/include/qt5/QtDBus/qdbusmetatype.h:81:12:   required from ‘int qDBusRegisterMetaType(T*) [with T = QHostAddress]’

but I have provided marshal and unmarshal functions for it.

QDBusArgument& operator<<(QDBusArgument& argument,
                                      const QHostAddress& ip) {
  argument.beginStructure();
  argument << ip.toString();
  argument.endStructure();
  return argument;
}

const QDBusArgument& operator>>(const QDBusArgument& argument,
                                            QHostAddress& ip) {
  QString nmosIp;
  argument.beginStructure();
  argument >> nmosIp;
  argument.endStructure();
  ip = QHostAddress{nmosIp};
  return argument;
}

[Christian Ehrlicher]

Did you also call qDBusRegisterMetaType<>() - it's needed according to the docs.

[Venkateswaran]

@Christian-Ehrlicher yes, that's where this error comes, because qDBusRegisterMetaType<>() calls << & >> functions

[Christian Ehrlicher]

And are your calls visible to the compiler where you call qDBusRegisterMetaType? Please show the complete code - best in a simple main.cpp