Log In Page

Hello, I'd like to ask question regarding connecting the QML to cpp, my goal is to send parameter from QML in forms of username and password to cpp, the cpp itself is connected with the GSoap. If the results return true, then the user can move to another page and if wrong username and password were send, nothing will happen; but at the mean time, I'd just show some text at the console screen. This is my code, please give me a clue of what i was lack at.

Code:

//LogInPage
import QtQuick 1.0
import "comp"
 
Rectangle
{
    id: mainWindow
    width: 360; height: 360
    signal dataRequired(string msg,string msg);
    function success() {console.log("connection done")}
    function fail() {console.log("fail")
    Image
    {
        id: backgroundAbout      
        source: "comp/pic/background-about.jpg"
 
        Text {
            id: text1
            x: 21
            y: 118
            width: 80
            height: 20
            text: "UserName:"
            font.family: "OCR A Extended"           
            font.pixelSize: 24
        }
 
        Text {
            id: text2
            x: 218
            y: 207
            width: 80
            height: 20
            text: "PassWord:"
            font.family: "OCR A Extended"
            font.pixelSize: 25
        }
 
            TextInput
            {
                id: inputLogin
                text: ""
                x: 0
                y: 0
                width: 310
                height: 22            
                selectionColor: "#ffffff"
                font.family: "OCR A Std"
            }
        }
 
        Rectangle {
            id: rectangle2
            x: 13
            y: 234
            width: 310
            height: 22
            color: "#eecfcf"
            border.color: "#995757"
            TextInput {
                id: inputPass
                text: ""
                x: 1
                y: 1
                width: 310
                height: 22
                selectionColor: "#ffffff"
                font.family: "OCR A Extended"
                opacity: 1
            }
            opacity: 0.2        
 
        Text {
            id: text3
            x: 143
            y: 301
            width: 80
            height: 20
            text: "LogIn"
            font.family: "OCR A Extended"
            font.pixelSize: 25
            MouseArea
            {
                id: mouseareaLogIn
                anchors.fill: parent
                onPressed:
                {   
                    myObject.fungsiLogIn(inputLogin.text, inputPass.text}               
            }
        }                          
    }
}

Code:

//main.cpp
#include "mainwindow.h"
//#include "ui_mainwindow.h"
#include <qdeclarative.h>
#include <QDeclarativeView>
#include "loginwidget.h"
#include <QDebug>
 
#include <QtCore/QCoreApplication>
#include <QtDeclarative/QDeclarativeEngine>
#include <QtDeclarative/QDeclarativeComponent>
#include <QtDeclarative/QDeclarativeView>
#include <QtDeclarative/QDeclarativeContext>
#include <QtCore/QVariant>
#include <QtCore/QString>
#include <QtCore/QMetaObject>
#include "mainwindow.h"
 
 
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent)
 
{
   // QDeclarativeView view;
    this->login= new LoginWidget();
    this->view= new QDeclarativeView(this);
 
    view->QDeclarativeView::setSource(QUrl::fromLocalFile("LogInPage.qml"));
    view->engine()->rootContext()->setContextProperty("myObject",&login);
    setCentralWidget(view);
    this->show();
 
}
 
MainWindow::~MainWindow()
{
 
}
 
void MainWindow::test(char *username, char *password)
{
    qDebug()<<" Passing done";
}

Code:

//mainwindow.cpp
#include <QtGUI/QApplication>
#include <QtCore/QCoreApplication>
#include "loginwidget.h"
//#include "loginpage.qml"
#include <qdeclarative.h>
#include <QDeclarativeView>
#include "mainwindow.h"
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    MainWindow mainwindow;
    mainwindow.show();
 
    return app.exec();
}

Code:

//loginwidget.cpp
#include "loginwidget.h"
#include "QDebug"
#include "Gsoap/testBinding.nsmap"
#include <QDeclarativeView>
 
LoginWidget::LoginWidget()
{
 
}
 
void LoginWidget::fungsiLogIn(char *username, char *password){
    char  *output;
 
    if ( clientSoap.ns2__functionLogin(*&username,*&password,*&output) == SOAP_OK)
    {
        if (output)
        {
            emit sukses();
        }
        else
        {
            emit gagal();
        }
 
    }

Thank you for the aid.

Regards,