#include "dialogimpl.h"//DialogImpl::DialogImpl( QWidget * parent, Qt::WFlags f) 	: QDialog(parent, f){	setupUi(this);	connect(ReceiveButton,SIGNAL(clicked()),this,SLOT(ReceiveFromClient()));	connect(StartServerButton,SIGNAL(clicked()),this,SLOT(startServer()));	connect(&tcpServer,SIGNAL(newConnection()),this,SLOT(acceptConnection()));  connect(QuitButton, SIGNAL(clicked()), this, SLOT(close()));}void DialogImpl:: startServer(){	while(!tcpServer.isListening()&&!tcpServer.listen(QHostAddress::LocalHost,16689))	{	QMessageBox messageBox(QMessageBox::Question,"Fail","Listening fail");	messageBox.exec();	}	StartServerButton->setEnabled(false);	}void DialogImpl:: ReceiveFromClient(){		char data[1024];     tcpServerConnection->read(data,1024);	  QString str(data);      ReceiveText->setText(str);	StartServerButton->setEnabled(true);		}void DialogImpl::acceptConnection(){	//表示接受到了一個新的連接	tcpServerConnection=tcpServer.nextPendingConnection();		QMessageBox messageBox(QMessageBox::Question,"New Connection","New Connection");	messageBox.exec();		}//