Problem calling a function of a class from another class.

[Fallen_]

Hi, when calling these functions (the highlighted ones (between [.b][./b])):

#include "startup.h"
#include <QtGui>
 
Startup::Startup(QWidget* parent)
	: QDialog(parent)
{
	portLabel = new QLabel(tr("Port:"));
	chanLabel = new QLabel(tr("Channel:"));
	nickLabel = new QLabel(tr("Nick:"));
	serverLabel = new QLabel(tr("Server:"));
 
	portLine = new QLineEdit;
	chanLine = new QLineEdit;
	nickLine = new QLineEdit;
	serverLine = new QLineEdit;
 
	done = new QPushButton(tr("Finished"));
	quit = new QPushButton(tr("Close"));
 
	mainW = new MainWindow;
 
	connect(done, SIGNAL(clicked()), this, SLOT(showMainWindow()));
	connect(quit, SIGNAL(clicked()), this, SLOT(close()));
 
	QHBoxLayout* v = new QHBoxLayout;
	v->addWidget(serverLabel);
	v->addWidget(serverLine);
	v->addWidget(portLabel);
	v->addWidget(portLine);
	v->addWidget(chanLabel);
	v->addWidget(chanLine);
	v->addWidget(nickLabel);
	v->addWidget(nickLine);
	v->addWidget(done);
	v->addWidget(quit);
	setLayout(v);
	resize(100, 80);
	setWindowTitle(tr("Startup Window"));
}
 
void Startup::showMainWindow()
{
	mainW->show();
}
 
[b]QString Startup::getServer() {
	return serverLine->text();
}
 
QString Startup::getNick() {
	return nickLine->text();
}
 
QString Startup::getChannel() {
	return chanLine->text();
}
 
QString Startup::getPort() {
	return portLine->text();
}[/b]

#include "startup.h"
#include <QtGui>

Startup::Startup(QWidget* parent)
	: QDialog(parent)
{
	portLabel = new QLabel(tr("Port:"));
	chanLabel = new QLabel(tr("Channel:"));
	nickLabel = new QLabel(tr("Nick:"));
	serverLabel = new QLabel(tr("Server:"));

	portLine = new QLineEdit;
	chanLine = new QLineEdit;
	nickLine = new QLineEdit;
	serverLine = new QLineEdit;

	done = new QPushButton(tr("Finished"));
	quit = new QPushButton(tr("Close"));

	mainW = new MainWindow;

	connect(done, SIGNAL(clicked()), this, SLOT(showMainWindow()));
	connect(quit, SIGNAL(clicked()), this, SLOT(close()));

	QHBoxLayout* v = new QHBoxLayout;
	v->addWidget(serverLabel);
	v->addWidget(serverLine);
	v->addWidget(portLabel);
	v->addWidget(portLine);
	v->addWidget(chanLabel);
	v->addWidget(chanLine);
	v->addWidget(nickLabel);
	v->addWidget(nickLine);
	v->addWidget(done);
	v->addWidget(quit);
	setLayout(v);
	resize(100, 80);
	setWindowTitle(tr("Startup Window"));
}

void Startup::showMainWindow()
{
	mainW->show();
}

[b]QString Startup::getServer() {
	return serverLine->text();
}

QString Startup::getNick() {
	return nickLine->text();
}

QString Startup::getChannel() {
	return chanLine->text();
}

QString Startup::getPort() {
	return portLine->text();
}[/b]

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they return either "" or 0
what am i doing wrong?