Send and receive strings with QTcpSocket

[Captain Matsuyo]

Hello, I have a project with a window which displays some numeric informations. This informations come from a tcp server so I tried to add a tcp client in my program with these lines below that is supposed to send a message to my server regarding to it, the message is not received, could I have some help please ?
My code :

    //Creation socket
    QTcpSocket socMeteo;
    socMeteo.connectToHost("192.168.1.35",10001);
    
    //Envoi de donnees
    QTextStream texte(&socHauteur);
    //texte<<phrase<<endl;
    texte<<"Bonsoir"<<endl;

Thank you very much

[SGaist]

Hi and welcome to devnet,

You are not checking whether the connection is successful, that would be the first step.

How is your server implemented ?

[Captain Matsuyo]

My server is at school so right now I'm using Hercule setup utiliy to simulate a tcp server

So how should I proceed to check if the connection is successful or not please ? I'm sorry I'm using QT Creator since April so I don't have a lot of knowledge

[SGaist]

This has nothing to do with Qt Creator. Qt Creator is just an IDE.

In any case, check waitForConnected

[J.Hilk]

@Captain-Matsuyo

besides what @SGaist said about the connected state of your socket, this

QTcpSocket socMeteo;

is on the stack. My guess is, the QTcpSocket - object gets destroyed before the os has any chance of actually sending anything over the socket

[VRonin]

QTcpSocket socMeteo;
QTextStream texte(&socHauteur);

These are 2 different sockets. What are you trying to do?

It should be something like:

auto socMeteo = new QTcpSocket(this);
socMeteo->connectToHost("192.168.1.35",10001);
connect(socMeteo,&QTcpSocket::connected,socMeteo,[socMeteo]()->void{
    QTextStream texte(socMeteo);
    texte<<"Bonsoir\n";
});