Hi,
I am new to Qt and therefore this question might be easy to solve (unfortunately not for me).
I have to update a textarea dynamically from C++ code.
Here is what I have so far:

Qt Code: 
  1. import QtQuick 2.2
  2.     import QtQuick.Controls 1.1
  3.  
  4.  
  5.     ApplicationWindow {
  6.         visible: true
  7.         width: 640
  8.         height: 480
  9.  
  10.         title: qsTr("IMServer")
  11.  
  12.         menuBar: MenuBar {
  13.         Menu {
  14.             title: qsTr("File")
  15.             MenuItem {
  16.             text: qsTr("Exit")
  17.             onTriggered: Qt.quit();
  18.             }
  19.         }
  20.         }
  21.  
  22.         TextArea {
  23.         id: serverInformation
  24.         x: 0
  25.         y: 0
  26.         width: 247
  27.         height: 279
  28.         }  
  29.     }
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Qt Code: 
  1. #include <QApplication>
  2.     #include <QQmlApplicationEngine>
  3.     #include <QQmlContext>
  4.     #include <QQmlEngine>
  5.     #include <QtQml>
  6.  
  7.     #include "imserver.h"
  8.  
  9.     int main(int argc, char *argv[]) {
  10.         QApplication app(argc, argv);
  11.  
  12.         QQmlApplicationEngine engine;
  13.         engine.load(QUrl(QStringLiteral("qrc:///main.qml")));
  14.  
  15.         IMServer server(2000);
  16.  
  17.         qmlRegisterUncreatableType<IMServer>("App", 1, 0, "IMServer", "");
  18.         engine.rootContext()->setContextProperty("imserver", &server);
  19.  
  20.         server.startServer();
  21.  
  22.         return app.exec();
  23.     }
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Qt Code: 
  1. #ifndef IMSERVER_H
  2. #define IMSERVER_H
  3.  
  4. #include <QTcpServer>
  5. #include <QTcpSocket>
  6. #include <QAbstractSocket>
  7. #include <QThreadPool>
  8.  
  9. class IMServer : public QTcpServer {
  10.  
  11.     Q_OBJECT
  12.     Q_PROPERTY(QString text WRITE setText NOTIFY textChanged)
  13.  
  14. public:
  15.     explicit IMServer(int port, QObject *parent = 0);
  16.     void startServer();
  17.     void setText(const QString &txt);
  18.  
  19. signals:
  20.     void textChanged();
  21.  
  22. public slots:
  23.  
  24. protected:
  25.     void incomingConnection(qintptr fd);
  26.  
  27. private:
  28.     int port;
  29.     QThreadPool *pool;
  30.     QString m_text;
  31. };
  32.  
  33.  
  34. #endif // IMSERVER_H
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Qt Code: 
  1. #include "imserver.h"
  2. #include "clienthandler.h"
  3.  
  4. IMServer::IMServer(int port, QObject *parent) : QTcpServer(parent) {
  5.     this->pool = new QThreadPool(this);
  6.     this->pool->setMaxThreadCount(100);
  7.     this->port = port;
  8. }
  9.  
  10. void IMServer::startServer() {
  11.  
  12.     setText("TEST");
  13.  
  14.     if (!this->listen(QHostAddress::Any, this->port)) {
  15.     qDebug() << "Server could not be started";
  16.     } else {
  17.     qDebug() << "Server started, listening...";
  18.     }
  19. }
  20.  
  21. void IMServer::setText(const QString &txt) {
  22.     m_text = txt;
  23.     emit textChanged();
  24. }
  25.  
  26.  
  27. void IMServer::incomingConnection(qintptr fd) {
  28.     ClientHandler *client = new ClientHandler();
  29.     client->setAutoDelete(true);
  30.     client->fd = fd;
  31.     this->pool->start(client);
  32. }
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But the textarea is not updating, can anyone pls tell me what I missed?