qt compiler error on instantiating class - qt

Question

I am having a problem compiling dialog.h, the compiler complains that QHostAddress::Any is not a type, and expected identifier before numeric constant. (both on the second to last line of dialog.h).
Can someone tell me why this won't compile? I'm instantiating the server object, and passing parameters that the server constructor expects...i thought...
dialog.h
#include <QWidget>
#include <QHostAddress>
#include "server.h"
class QLabel;
class QPushButton;
class Dialog : public QWidget
{
Q_OBJECT
public:
Dialog(QWidget *parent = 0);
private:
QLabel *statusLabel;
QPushButton *quitButton;
Server server;
};
server.h:
class Server : public QTcpServer
{
Q_OBJECT
public:
Server(QHostAddress listenAddress, quint16 listenPort, QObject *parent = 0);
QHostAddress hostAddress;
quint16 hostPort;
protected:
void incomingConnection(qintptr socketDescriptor);
private:
};
dialog.cpp (partial)
Dialog::Dialog(QWidget *parent)
: QWidget(parent), server(QHostAddress::Any, 4000)
{
server.cpp (partial)
#include "server.h"
#include "clientthread.h"
#include <stdlib.h>
Server(QHostAddress listenAddress, quint16 listenPort, QObject *parent = 0)
: hostAddress(listenAddress), hostPort(listenPort), QTcpServer(parent)
{
}
Note code above updated. Now compiler complains:
Expected ')' before 'listenAddress' on the constructor definition of Server.

Answer 1

You need to declare the Server object as a Dialog class member variable and than define it in constructor. Here is how the Dialog class should look like:
dialog.h
#include <QWidget>
#include <QHostAddress>
#include "server.h"
class QLabel;
class QPushButton;
class Dialog : public QWidget
{
Q_OBJECT
public:
Dialog(QWidget *parent = 0);
private:
QLabel *statusLabel;
QPushButton *quitButton;
Server server; // Declare server member variable.
};
dialog.cpp
Dialog::Dialog(QWidget *parent)
:
QWidget(parent),
server(QHostAddress::Any, 4000) // construct server
{
//...
}