QMessageBox won't appear.

[Vladimir_]

Hello,

I am building a client/server application , I made a response in the server with

socket->write("blabla");

socket->write("blabla");

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i used telnet as a client and actually the response recieved.

But the problem is that I want to make a notification as a QMessageBox . But nothing appears.

server:

void MyClient::TaskResult(int number)
{
    QByteArray Buffer;
    Buffer.append("Task Result = ");
    Buffer.append(QString::number(number));
 
    socket->write(Buffer);
    QMessageBox::information(this, "Bytes written", "Bytes written successfully to the client");
}

void MyClient::TaskResult(int number)
{
    QByteArray Buffer;
    Buffer.append("Task Result = ");
    Buffer.append(QString::number(number));

    socket->write(Buffer);
    QMessageBox::information(this, "Bytes written", "Bytes written successfully to the client");
}

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the

socket->write(buffer);

socket->write(buffer);

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works, but the messagebox does not work.

Can you tell me the reason why ?

NOTE: i'm not aiming to use the messagebox in the real project, but i made this to debug and make sure about the steps done.
There's another issue which will BE ACTUALLY used in the project, its changing some labels/widgets in the MainWindow from another class at incoming connection.
But thats not my question now.

Thanks,
Vladimir.