// TCPSERVER.CPP#include "tcpserver.h"#include "ui_tcpserver.h"#include <QtNetwork>#include <QPlainTextEdit>TcpServer::TcpServer(QWidget *parent) : QWidget(parent), ui(new Ui::TcpServer) , m_server(new QTcpServer(this)){ ui->setupUi(this); if (!m_server->listen(QHostAddress::LocalHost, 8001)) { ui->log->setPlainText(tr("Failure while starting server: %1")...