Added a Qt window for output

source/mainwindow.cpp

@@ -0,0 +1,26 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+#include "sniffthread.h"
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+
+    connect(ui->pushButton, &QPushButton::clicked, ui->listWidget, &QListWidget::clear);
+
+	SniffThread *sniffThread = new SniffThread();
+	connect(sniffThread, &SniffThread::dataReceived, this, &MainWindow::dataReceived);
+	sniffThread->start();
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::dataReceived(QString data)
+{
+	ui->listWidget->addItem(data);
+}