QHttp signals not connecting...

Please help, my signals won't connect.... using Visual C++ with QT add-on.

my method ReqEnded never fires... but the Http does the Get. The connect returns false.

.h file..

Code:

class Sign : public QMainWindow
{
    Q_OBJECT
 
public:
 
    void ReceiveData(int Size, unsigned char * Data);
    static Sign * getInstance();
    ~Sign();
 
protected:
    Sign(QWidget *parent = 0, Qt::WFlags flags = 0);
private:
    Ui::SignClass ui;
    static Sign * instance;
    QHttp * http;
 
 
private slots:
	void on_processDataButton_clicked();
	void on_pushButton_2_clicked();
	void on_GoButton_clicked();
	void on_pushButton_clicked();
	void on_sendButton_clicked();
	void on_connectButton_clicked();
 
	void ReqStarted(int x, bool error);
	void ReqEnded(int x, bool error);
};

.c file..

Code:

void Sign::on_GoButton_clicked()
{
	int Ret;
	http = new QHttp(this);
	Ret = connect(http, SIGNAL(requestFinished(int, bool)), this, SLOT(reqEnded(int, bool)));
 
	ui.lineEdit->setText("Go");
	QUrl url(ui.urlLineEdit->text(), QUrl::TolerantMode);
	http->setHost(url.host(), 80);
	int httpGetId = http->get(url.path());
}
 
void Sign::ReqEnded(int x, bool error)
{
    char Data[10000];
    http->read(Data, 10000);
}