c++:

class ClientHandler : public QObject {
Q_OBJECT
public:
    ClientHandler(LibInstaller *parent, qhttp::server::QHttpRequest *req, qhttp::server::QHttpResponse *res);

public slots:
    bool makeLabel(QJsonObject *reply, int handle, QString type);
    bool openDevice(QJsonObject *reply, QString device);
    bool openDisk(QJsonObject *reply, int device_handle);
    bool listPartitions(QJsonObject *reply, int disk_handle);
    bool createPartition(QJsonObject *reply, int disk_handle, int start, int size);


javascript:
qx.core.Init.getApplication().RPC("createPartition", { disk_handle: 1, start:2, size: 3 }, console.log);