Weird of TCP client read function

Phong

Hello , I was successfully build a TCP client with QTcpSocket and it works fine both read and write data.
However when I move my connect tcp code from mainwindow constructor to the pushbutton clicked slot function
I can't read the data from server end anymore !! I have no idea what's happened...
I wanna switch tcp connection on and off and also update IP address when I clicked the button.

Here is the code :
in mainwindow constructor or on_clicked_connectBtn()

if(handler->Connect()){
    qDebug() << "success";
}else{
     qDebug() << "fail";
}

here is the code in handler->connect()

bool Handler::connect{
    this->Socket = new QTcpSocket();
    this->Socket->ConnectToHost(ip, port);
    connect(this->Socket, SIGNAL(readyRead()), this, SLOT(Read));
    return Socket->waitForConnect();
}

and just

qDebug() << this->Socket->readAll();

in the Read() function.

thx~

mrjj

Hi
But does it connect?
qDebug() << "success";
Should not make any difference when moved from constructor :)

SGaist

Hi,

Maybe a silly question but did you lose a set of parenthesis on your slot when moving your code in your connect statement ?

Phong

@mrjj
Yes, It will show sucess, so that's why I confused...

Phong

@SGaist
Yup , I found the problem, It's a silly question, but not cuz the SLOT not connect.
I new the TcpSocket every time when I clicked the button, so it just disconnect with TCP...
now I solve it, thanks a lot.